NORTH TEXAS PREFERRED HEALTH PARTNERS - Key Persons
Dr. Aaron Samsula, MD, FACP has a primary goal to provide his patients with compassionate, comprehensive healthcare. He is grateful to his patients for trusting him with their health and strives to provide care that is second to none. He promotes a healthy lifestyle and focuses on preventive medicine. He aggressively manages chronic diseases and coordinates care with subspecialists to help his patients control their disease processes and maximize their quality of life. Dr. Samsula is a local product of Plano Senior High School, The University of Texas at Dallas, and The University of Texas Medical Branch. His accolades include earning Fellowship in the American College of Physicians and being named the 2014 Early Career Physician Leader of the Year by the Texas Chapter of the American College of Physicians. He is a runner, cyclist, swimmer, foodie, and avid Seattle Seahawks fan and enjoys spending time with his wife and two boys.
Alison H. Sibley, MD, FACP has an interest in preventive care as well as diabetes, hypertension, cholesterol, and obesity. She believes in partnering with the individual patient to achieve his or her health care goals. Dr. Sibley completed her internship and residency at Baylor University Medical Center. She and her husband Warren have 2 children.
Allison Lander, MD is committed to providing individualized, cutting-edge medical and preventive care. As a concierge physician, Allison knows that taking time to listen to patients and involve them in their care is essential to developing and carrying out a successful treatment plan. She treats a broad range of chronic conditions including hypertension, diabetes, obesity, depression, as well as many others. Prior to practicing outpatient internal medicine for the last 5 years, she practiced hospital medicine for 10 years at Baylor University Medical Center. She has seen a wide variety of both acute and chronic issues and has developed working relationships with many of the best specialists at Baylor. She is dedicated to improving the overall health and wellness of her patients. She believes in work-life balance and the importance of family. She was born and raised in Texas and met her husband, Brian, at Texas Tech University in Lubbock. They live in east Dallas with their 2 sons and their dog, Otter. In her spare time, Allison loves to spend time with family and friends and loves to travel.
Anna P. Gresham, FNP-C, has an interest in helping educate patients on diet and lifestyle changes to manage blood pressure, diabetes, cholesterol, and other chronic diagnoses. She wants to assist patients in improving the overall picture of their health. She also has experience in Botox and other injectables. She received her Master of Science in Nursing from Vanderbilt University. She and her husband Thomas have 2 children. As a family, they enjoy cooking together, travelling and being outdoors.
Bill Shumate, MD was born in Houston and grew up in Plano, Texas. He attended Plano Senior High School before going to Abilene Christian University, where he received his Bachelor of Science in Biology and graduated summa cum laude. Dr. Shumate attended UT Southwestern Medical School in Dallas and graduated Alpha Omega Alpha. After completing his residency in Waco with McLennan County Medical Education and Research Foundation, he served in the U.S. Air Force at the Air Force Academy in Colorado Springs. Dr. Shumate has practiced medicine in Garland for 21 years. He is dedicated to patient education and empowerment to live a healthy lifestyle. He enjoys seeing patients of all ages and is dedicated to preventive care, chronic disease management, holistic therapies, and patient education.
Dr Shumate met his wife while attending Abilene Christian University and they have eleven (11) children together. When not working, Dr Shumate enjoys snow skiing and hiking in Colorado, spending time outdoors, traveling, and spending time with his family.
Job Titles:
- Internal Medicine
- Las Colinas
Bradley (Brad) S. Jones MD believes in developing a true partnership with his patients to optimize care, recognizing that each patient has unique needs and different responses to treatments. Dr. Jones actively admits and rounds on patients admitted to Baylor Irving Hospital so that his care continues in the inpatient setting. Dr. Jones has a strong interest in preventive care, fitness, and wellness while also focusing in diabetes, hypertension, and lipids. He has two sons, is an avid runner/marathoner, and enjoys skiing, hiking, and fly fishing in Colorado.
Dr. Jones grew up in Richardson and attended Texas A&M University, where he obtained a degree in mechanical engineering. He worked for Exxon Chemical for 7 years and obtained an MBA from LSU before pursuing a career in medicine. He graduated from University of Texas Southwestern Medical Center and completed his residency at Baylor University Medical Center. He has practiced Internal Medicine in Irving/Las Colinas for the past 15 years and has served as a Baylor Scott and White spokesperson for WFAA for the past 3 years.
Cherese Wiley, MD is a Board-Certified Internal Medicine physician, who is passionate about helping patients achieve the healthiest version of themselves. She promotes the cornerstones of good health: nutrition, exercise, and disease prevention. She focuses on patient education as a way to encourage patients to take an active part in their overall health.
Dr. Wiley treats urgent medical needs, as well as chronic medical conditions, such as hypertension, diabetes, thyroid conditions, obesity, and metabolic syndrome to name a few. She is dedicated to partnering with patients who desire to achieve weight loss.
Dr. Wiley has been featured on WFAA/ABC local news station for over seven years as a regular medical spokesperson during the noon day segment discussing medical topics as a representative for Baylor Scott & White.
Dr. Wiley grew up in Vicksburg, Mississippi. She graduated with high honors from Southern University in Baton Rouge, Louisiana and attended medical school at Meharry Medical College in Nashville, Tennessee. During medical school, she was inducted into the prestigious medical honor society, Alpha Omega Alpha.
With southern roots and charm, Dr. Wiley enjoys preparing healthy but tasty meals for her family, with the occasional preparation of their favorite southern comfort foods. Dr. Wiley volunteers in her community and with her local church. She has been married to her best friend, Dr. Jamal Wiley, for twenty years. She is an avid sports fan, but her favorite athletes are her three children who are very active in basketball, football, track, and cheer. Dr. Wiley enjoys a variety of fitness activities and is often known to say "if it's fun and burns calories- then do it! "
Dr. Wiley is a member of American College of Physicians, National Medical Association, and Texas Medical Association.
Dr. Dimmitt has three sons. He is a history buff who enjoys travel, UT Longhorn athletics, and spending time with his family. Since 2014, Dr. Dimmitt has served on the University of Texas System Chancellor's Council Executive Committee.
Dr. Christina Kuo, MD describes her practice style as patient focused. She is a caring primary care physician with professional interest in women's health and preventative care. Her personalized practice style is designed to not only help each patient stay healthy, but also diagnose and effectively treat illness when it arises. She is a devoted patient advocate, always striving to listen to each individual need. She educates each patient about personalized preventive care and enjoys motivating her patients toward improvements in their health and overall quality of life. Dr. Kuo is affiliated with both Baylor Medical Center at Frisco and Baylor Scott & White Medical Center - Plano.
Dr. Jennifer Wilkerson's professional interests include prevention, health and wellness. She also manages diabetes, hypertension, thyroid disease and cholesterol. Dr. Wilkerson is married with 3 children. She enjoys spending time exercising especially running with her friends and family.
Dr. Kyle Molen, MD is a board-certified Internal Medicine physician who is dedicated to providing exceptional care for his patients. His professional interests lie in wellness and preventative care, diabetes and lipid management, as well as adolescent medicine. Dr. Molen has held leadership roles within the Baylor healthcare system while working on quality improvement initiatives. His passion for teaching and learning helps to expand his own knowledge base to keep up with emerging medical trends. This same passion has led him to teach students in both medical and nurse practitioner programs. Currently, Dr. Molen serves as one of Dallas' "Rock Docs" providing care for visiting artists performing at local venues. In his leisure time, he enjoys travel, snow skiing, and spending time with his family.
Dr. Mark Meehlhause was born and raised in Iowa. After graduating from medical school at The University of Iowa, he moved to Texas for residency training in 1999. Upon completion, he opened a family medicine office in Frisco where he practiced for over 17 years prior to helping establish North Texas Preferred Health Partners in Frisco in the fall of 2019.
He has enjoyed getting to know the families who have entrusted him with their medical needs and providing them with quality, comprehensive care. As a result, Dr. Meehlhause has been named one of D Magazine's Best Doctors in Collin County annually since 2012 and was also selected for the Health Texas Provider Network Family Medicine Hall of Fame in 2017.
Emphasizing preventative medicine along with optimizing overall health and wellness is a significant part of Dr. Meehlhause's medical philosophy. He has extensive experience caring for a variety of both acute and chronic medical issues for adults as well as pediatric patients. The variety of problems and issues encountered from the young child to the elderly patient is what originally led him to pursue this specialty and continues to cultivate his interest in family medicine. However, he most appreciates the close relationships that he has developed with his patients over the years.
Job Titles:
- Internal Medicine
- Park Cities
Dr. Steve Lau, MD enjoys collaborating with his patients to achieve the best possible outcomes in health, function, longevity and disease prevention. He enjoys tailoring health and treatment plans for each person, with their unique goals and perspectives in mind. Dr. Lau will use his medical knowledge and explore all possible solutions to help you achieve your individualized health goals.
Dr. Lau grew up in Kansas City, Missouri, attended high school in Amarillo, Texas, then completed his bachelor's degree in electrical engineering at Texas A&M University, before completing 7 years of medical school and residency at The University of Texas Southwestern Medical School in Dallas and finally setting up his private practice in 1999.
When away from his medical practice, Dr. Lau enjoys spending time with his family, reading classic literature, comparative religion, futurism and cosmology. His other interests include films, golf, exercise, fishing and traveling.
Elisabeth TiIleros, MD believes in providing quality preventive care and establishing a partnership with her patients to improve their long-term health. Through discussions with her patients, she ensures that their healthcare goals and treatments are aligned. Dr. Tilleros started her internal medicine career at Johns Hopkins in Baltimore and has been practicing medicine in Dallas since 2009. Dr. Tilleros and her husband have two wonderful daughters. She enjoys spending her free time outdoors hiking with her family and her crazy but lovable golden retriever.
Greta Brodsky, MD, FACP is deeply dedicated to providing patients with personalized, state-of-the-art medical care. As a concierge caregiver, Greta specializes in a wide range of health concerns from cardiac disease to obesity to elder care. Dr. Brodsky has earned a fellowship in the Board of Internal Medicine and regularly engages in the most up-to-date medical seminars and courses.
This style of practice suits her well. Dr Brodsky is very detail-oriented and appreciates the time she now has to dote on her patients. She is very maternal and her (slightly beleaguered) husband encourages her to bring that energy to the office. Greta's husband, Chuck, has been an OB/GYN in Dallas for over 25 years, and they love bumping into their patients in the community. Greta and Chuck have three children: Nick is a whiz in data analytics and lives just outside of L.A.; Isaac is an Austin musician and music producer; and daughter Quinn studies physics and math at MIT, but we don't understand anything she says when she talks about her work.
Dr Brodsky loves languages. She is fluent in Spanish, French, and Italian, and she has started to tackle sign language. She loves to travel so that she can communicate with people in different cultures. She is a vegetarian and loves to cook and dig in her garden. She adores her six-pound dog, Pito (who suffers a sort of "Napoleon Complex"), and they can frequently be seen walking in the neighborhood, avoiding the larger canine crew who could easily eat the tiny delusional pup in a single bite.
Hari Raja, MD, FACP grew up in Houston and graduated Summa Cum Laude from Houston Baptist University. He then moved to Dallas and earned his medical degree from UT Southwestern Medical School. Dr. Raja completed his Internal Medicine residency at UT Southwestern Medical School and stayed on as faculty in the General Internal Medicine division. He had many roles at UT Southwestern during his 18-year tenure as faculty including Internal Medicine clerkship director, various administrative positions in curriculum committees, primary care curriculum, global health opportunities, preclinical and clinical curriculum development, and faculty development coordinator for the GIM division. His main clinical interests include a focus on preventative medicine, care of chronic medical conditions, obesity, and educating patients on their overall medical care. He is a fellow of the American College of Physician, member of Alpha Omega Alpha, and a faculty member at both Texas A&M School of Medicine and the TCU and UNTHSC School of Medicine. He has twin daughters and a son. His personal interests include running, traveling around the world, and music.
James Marroquin, MD is board-certified in internal medicine and palliative medicine. He is committed to developing deep relationships with his patients and helping them maintain their health to live the fullest life possible. He has a special interest in preventative care and managing long-term issues such as anxiety, depression, gout, hypothyroidism, diabetes, hypertension, and lipid disorders. He also enjoys being there for patients when urgent health issues happen like headaches, back pain, and infections.
Dr. Marroquin was awarded the 2015 Ruth M. Bain Young Physician Award by the Travis County Medical Society. He has been repeatedly selected as one of Austin Monthly's Top Doctors and by Texas Monthly as a Super Doctor. He is a fellow in the American College of Physicians. He serves as a mentor in the Developing Outstanding Clinical Skills (DOCS) course at UT Dell Medical School, educating our next generation of physicians.
He is committed to being his patients' quarterback and advocate, coordinating with other practitioners involved in his patients' care. Outside of his clinical practice, Dr. Marroquin enjoys writing about health and medicine for lay people, playing tennis (sometimes against his older son who now sometimes beats him), and being part of his church community.
Jennifer Edwards, MD believes that listening is the key to diagnoses and treatment and that patients need to understand their chronic illnesses in order to improve their outcomes. She has an interest in cardiovascular medicine, diabetes, depression, preventative care, and all of the chronic illnesses.
Dr. Edwards enjoys Bikram yoga, gardening and walking her German Shepard. She was an avid distance runner until faced with injury several years ago and now rides regularly. She has four boys and has been practicing in Dallas for the past twenty-plus years.
John C. Brooks, MD has interest in treating a variety of chronic medical issues as well as maintaining good health. He grew up in Denton, Texas. He and his wife Diane have two daughters. He enjoys traveling and exercise and is a devoted sports fan.
Kyle L. Gummelt, DO, MPH is dedicated to providing patients with personalized, state-of-the-art medical care, understanding the need for time to design individualized care plans and goals. Dr. Gummelt puts a special emphasis on preventive care and wellness, and his professional interests include prevention and management of cardiovascular disease. He has specific disease management focuses on obesity, sugar diabetes and cholesterol control. His epidemiology training has been instrumental in guiding patients through the COVID-19 pandemic, and his hands-on diagnostic approach allows for a complete evaluation of musculoskeletal concerns and injuries.
Manik Aggarwal, MD, is board-certified in internal medicine and he is on the medical staff at Baylor University Medical Center. His prior training in medical anthropology and public health has set the framework for his practice with an emphasis on patient education, communication and empowerment. He believes that the cornerstones of excellent primary care are aptitude and availability. His interests focus on health promotion, disease prevention, chronic disease management and medical education. Before joining this concierge medicine model, he practiced for over four years in a traditional primary care setting. Dr Aggarwal is married and has two young kids. He enjoys to travel and loves the joys (and heartbreak!) of Dallas Cowboys football.
Michelle M. Ho, MD, FACP cares deeply about her patients and is interested in preventive medicine, as well as management of chronic disease, stress, nutrition, weight loss, and aging. She was voted to D Magazine's best doctors list in 2015 and 2016 and is well known in the community by patients and referring physicians. She has two sons, Zach (USCGA '22) and Luke (USNA '24) and enjoys nutrition, baking, traveling, skiing, and word games.
Morgan has a passion for educating and empowering individuals to help improve their overall nutrition and lifestyle. Her passion drives her to support and assist others as they take steps towards meeting their nutrition and wellness goals. She graduated from Texas Christian University with a Bachelor of Science in the Coordinated Program in Dietetics. She enjoys spending time with friends and family. Her favorite activities include cooking, exercising, going to concerts, and supporting TCU Horned Frog football.
Neelay Gandhi, MD was born and raised in the San Francisco Bay Area but has been a long time Texan. He moved to Central Texas in the mid-1990s, where he completed high school and earned his Bachelor's in Economics at Baylor University in Waco. He left Texas for medical school at St. George's University, where he had the opportunity to live in the Caribbean and New York City. Dr Gandhi then returned home to Texas to complete his training at Baylor Family Medicine Residency in Garland.
Dr. Gandhi has been in practice since 2010 and a member of NTPHP since 2019. He enjoys seeing patients of all ages and for a broad spectrum of conditions with a passion for preventive care, vaccinations, and chronic disease management (including diabetes, cholesterol, mental health, high blood pressure, and thyroid disorders). He takes time to explain care options, as he believes that fully understanding the disease and treatment options is an important key to making the right choices and changes to improve one's health.
In his free time, Dr. Gandhi enjoys spending time with his wife and two children, as well as travelling. He enjoys medical informatics and teaching others in the medical profession
Raymon K. Aggarwal, MD has professional interests in treatment for cardiovascular health, diabetes, and cancer detection/prevention. He has been involved with multiple scientific organizations to stay current with the latest medical knowledge. Dr Aggarwal is married with 3 children and enjoys running and bicycling. He is an avid sports fan and enjoys reading suspense novels.
Rebecca Cummings, APRN, NP-C became a Nurse Practitioner after 8 years of experience as a critical care RN. She feels passionately about preventative medicine and helping patients understand their chronic diseases to empower them to better health. Rebecca is married with 2 sons. She enjoys sailing on Lake Ray Hubbard, running, reading, cooking, and spending quality time with family and friends.
Riteesha Reddy, MD is a board-certified rheumatologist who is committed to providing individualized, comprehensive, and compassionate care for her patients.
Dr. Reddy has additional fellowship training in integrative medicine and board certification in lifestyle medicine. She understands that rheumatologic conditions are often complex and affected by other health and lifestyle factors. Her clinical experience, attention to detail, and additional training allow her to not only provide up-to-date rheumatology care but also incorporate a focus on optimizing nutrition, physical activity, sleep, and social/emotional well-being as components of overall health.
Dr. Reddy was raised in Central Texas and graduated college with honors from Brown University in Providence, RI. She attended medical school at Brown University, followed by an internal medicine residency and a rheumatology fellowship at The University of Chicago Hospitals. After several years in clinical practice in Dallas, she saw a growing patient interest in non-pharmacologic options, which led her to pursue additional training. In 2019, she completed a Fellowship in Integrative Medicine at the world-renowned Andrew Weil Center for Integrative Medicine at The University of Arizona. She then became a certified Diplomate of the American Board of Lifestyle Medicine in 2020. She has been practicing rheumatology in a traditional format for over ten years in Dallas. She has been recognized as one of D Magazine's Best Doctors in 2018, 2019, 2020, and 2021. She has given educational lectures on "Non-Pharmacologic Therapies for the Rheumatology Patient," has been an invited speaker with the Lupus Foundation and has been recognized as a medical honoree by the Arthritis Foundation.
Dr. Reddy enjoys reading, being outdoors, and spending time with family and friends. Her 13-year-old twins are her favorite athletes.
Job Titles:
- Physician Award ( Travis County Medical Society ), 2015
Sarah moved to Texas from Florida and has over eight years of clinical nutrition and counseling experience with a wide variety of patient populations. Sarah graduated from Florida State University with a Bachelor of Science in Dietetics and completed her Dietetic Internship at Emory Healthcare. After the completion of her internship, Sarah has worked at the University of Florida Health as a critical care Dietitian in the burn, plastic surgery, and ENT intensive care unit, until moving to Texas. She also worked with a local gym to provide sports nutrition and wellness counseling within the community. Throughout her career, she has been able to gain valuable experience in both adult and pediatric populations, oncology, gastrointestinal disorders, diabetes, cardiology, and weight management. Sarah is a Certified Specialist in Obesity and Weight Management. She also holds a certification in Dietitian Nutrition Coaching.
Sarah has a passion for helping people make lifelong, healthy lifestyle changes to prevent or improve chronic disease. Sarah teaches her clients, in a compassionate style, ways to facilitate behavior and habit changes around nutrition and wellness. This will improve their quality of life and assist them in reaching their goals. Sarah has a passion for encouraging joyful movement and is also a Zumba instructor. In her free time, Sarah enjoys spending time with family and friends, cooking, exercising, and exploring her new home state of Texas.
Troy Neal, MD is trained in Internal Medicine and provides primary care to the adult patient. Dr. Neal enjoys cultivating a personal, long term relationship with each of his patients. His desirable traits as a physician include an excellent bedside manner, kind compassionate care, and attention to detail. Dr. Neal oversees all aspects of his patient's health. This includes a thorough annual wellness exam, preventative care, management of a broad spectrum of chronic conditions, as well as accurate diagnosis and treatment of new medical problems.
Dr. Neal grew up in Oklahoma City where his parents and two brothers still reside. He received his undergraduate degree in biology-chemistry at Southern Nazarene University and then attended the University of Oklahoma College of Medicine where he was a member of the Alpha Omega Alpha (AOA) Honor Medical Society. Dr. Neal completed his internship and residency at Baylor University Medical Center in Dallas. He then practiced for 10+ years within a traditional model prior to transitioning to concierge medicine at North Texas Preferred Health Partners in early 2021. Dr. Neal has been listed as D Magazines' Best Doctors in Dallas in the category of Internal Medicine. He has also been a member of the medical team to the Dallas Mavericks of the NBA.
Dr. Neal is married to Kam, who is a physician assistant in the Dallas area. He has two sons and a daughter who attend school in Lake Highlands. Dr. Neal's personal interests include date night with Kam, quality time with his children, playing basketball, playing pickle ball, working in the yard, and watching Oklahoma Sooner football.
Dr. Trung (Tyler) Duong, MD takes a personal approach in the care of his patients, striving to build a long term relationship with each individual patient. He treats a broad range of adult health issues and emphasizes proactive and preventative care. His interests include all aspects of health maintenance as well as management of chronic diseases such as diabetes, hypertension, thyroid, and cardiovascular diseases. Dr. Duong grew up in Bernice, Louisiana. In his years of practice, Dr. Duong has held numerous positions including Chief of Staff, Chief of Medicine, Medical Director, Assistant Clinical Professor, and was awarded the Clinical Faculty Award. His vast experiences range from inpatient hospital care and outpatient clinics to nursing homes, home health, and long term acute care. He holds licenses in Texas and Louisiana, and is Board Certified by the American Board of Internal Medicine. Dr. Duong relocated to Dallas in 2008, where he has focused his practice on comprehensive adult medicine. Dr. Duong resides in Frisco with his wife, Julia, and their three daughters Juliana, Angelina, and Olivia. When he is not in the office, he enjoys the outdoors playing tennis, bicycling, fishing, and spending quality time with his family.
Valerie Kasmiersky, MD, a native Texan, grew up in the small town of Sealy, Texas, just outside of Houston. She received her Bachelor of Science in Microbiology, graduating Magna Cum Laude from Texas A&M University. After graduation from medical school at the University of Texas Medical School at San Antonio, Dr. Kasmiersky completed her residency at the UT Southwestern Residency Program at John Peter Smith Hospital in Ft. Worth, Texas.
Dr. Kasmiersky moved to Frisco in 2004, where she has been serving the community ever since. Her caring attitude, compassionate care, and clinical acumen have earned her the respect amongst her colleagues and patients - who she is known best as "Dr. K". Dr. K has been voted to D Magazine's Best Doctors list annually since 2011.
Dr. K enjoys seeing patients of all ages. She seeks to understand the needs of her patients by providing a personalized approach to improve long-term health. She enjoys motivating her patients to achieve optimal health. Dr. K listens, empathizes, and collaborates to create a long-term partnership with her patients.
Dr. K has a strong interest in preventative care, men's health, nutrition, women's health, pediatrics, as well the management of chronic medical diseases like diabetes, cardiovascular disorders, hypertension, cholesterol, thyroid disorders, mental health, and obesity. When she is not in the office, you are likely to find her and her husband at one of their four kids' many sports or activities. Dr. K also enjoys biking, cooking, and traveling.
W. Blake Jenkins, DO, FAAFP was born in Dallas, Texas and grew up in McGregor, just outside of Waco. He graduated from Baylor University and while there, met his wife Debi. He served as Chief Resident of the Baylor Family Medicine Residency Program at Garland. Dr. Jenkins has practiced medicine in Frisco since 2002 and is dedicated to preventative care and a healthy lifestyle for his patients. He enjoys being a family medicine physician because he values the relationship with the individual patient. He was voted to D Magazine's best doctors in Collin County list from 2011-2018.
Blake and his wife have two daughters and a son. When not working, Blake enjoys traveling, watching sports (especially Baylor football), reading, being outdoors and spending time with his family.