VAPG - Key Persons
Double board-certified pediatrician and internal medicine specialist David Rubio, M.D., F.A.A.P., has cared for patients in Northern Virginia for over two decades. He is part of the Virginia Pediatric Group team and sees patients at the practice's location in Aldie, Virginia.
Dr. Rubio was born in Queens, New York, although he considers South Riding, Virginia, his hometown. He completed a six-year biomedical program with Union College in Schenectady, New York, earning a Bachelor of Science in 1987. He completed his medical degree in 1989 at Albany Medical College, also in New York. He then went on to complete his internal medicine/pediatrics residency training in 1993 at the North Shore University Hospital/Cornell University Medical Center in New York.
Upon residency completion, Dr. Rubio joined the Northern Virginia Primary Care Associates in Annandale until 2008, when he developed and managed his own private pediatrics practice in South Riding. He was board certified by the American Board of Internal Medicine in 1994 and recertified in 2003. Dr. Rubio was also board certified by the American Board of Pediatrics in 1994 and recertified in 2016.
In 2016, Dr. Rubio and his practice joined the Virginia Pediatric Group. He feels it is wonderful to watch the children he's cared for over the years grow and develop. The personal relationships made with families have been extremely rewarding, and he looks forward to doing the same for many years to come.
Dr. Rubio is fluent in Spanish and resides in South Riding with his wife and three children. In his free time, he enjoys sports and music.
April Venn, MD, is a dedicated pediatrician proudly serving families at Virginia Pediatric Group in Fairfax and Herndon, Virginia. A native of Fairfax, Dr. Venn grew up receiving care from the Virginia Pediatric Group, making her return as a provider a full-circle moment. She is passionate about giving back to the community that shaped her and creating a warm, supportive environment for families and children.
Dr. Venn holds a Bachelor of Arts from the University of Virginia and earned her medical degree from Dartmouth Geisel School of Medicine. She completed her pediatric residency at Eastern Virginia Medical School/Children's Hospital of the King's Daughters in Norfolk, VA. Before joining the Virginia Pediatric Group, she gained valuable experience working in a pediatric emergency room for four years. Fluent in Spanish, Dr. Venn began learning the language as a child in an immersion program, allowing her to connect with a diverse patient population.
Dr. Venn treasures the relationships she builds with her patients and their families, valuing the moments when children feel comfortable and excited to see her. Her goal is to foster a positive and trusting atmosphere that leaves a lasting impact, just as her childhood experiences with VPG physicians inspired her.
In her free time, Dr. Venn enjoys swimming, reading, baking, afternoon tea, photography, and traveling. She resides in Fairfax and is thrilled to welcome new and returning families to her offices in Fairfax and Herndon.
Debra Zeh grew up in Queens, New York, graduating from St. John's University with a BS in Biology. She attended medical school at SUNY Downstate in Brooklyn, New York. Her internship and residency were done at Georgetown University Medical Center. She and her husband, Dr. Manuel Guillen, founded and ran Virginia Allergy & Pediatrics for almost 40 years in Great Falls and Fairfax, Virginia. They closed their office during the pandemic. Dr. Zeh missed her relationships with her patients so in December 2022 she joined Virginia Pediatric Group.
She is board certified and a fellow of the American Academy of Pediatrics. she has one adult daughter. In her free time she loves swimming, working out in the gym, walking, traveling, and crafting. She is also an active member of the Medical Society of Northern Virginia, the Georgetown Clinical Society, and the Greater Washington Allergy and Immunology Society.
Heloisa Moser, MD, is a dedicated pediatrician who is passionate about providing comprehensive and compassionate care to children and their families. She sees patients at the Virginia Pediatric Group locations in Herndon and Fairfax, Virginia.
Born and raised in Brazil, Dr. Moser knew from an early age that she wanted to become a pediatrician. After traveling the world and exploring her passion for adventure, she completed medical school in Brazil and went on to finish her pediatric residency at St. Joseph's University Medical Center in New Jersey.
Dr. Moser is particularly passionate about mental health and its impact on the development of children and adolescents. She strives to create a warm, supportive environment that fosters meaningful connections with families. Her focus is to ensure that every child she cares for can thrive, grow, and prepare for a healthy future-ready to become resilient adults. For Dr. Moser, it is both a privilege and a joy to be part of this foundational process.
In her free time, Dr. Moser enjoys traveling, exploring new cultures, and listening to audiobooks. She cherishes every chance to be near the beach, embracing her Brazilian roots as someone raised on an island. Dr. Moser currently lives in Fairfax with her husband and their two sons, who are the light of her life.
James Baugh, M.D., F.A.A.P., has been on the team at Virginia Pediatric Group for over thirty years. He has dedicated his medical career to providing pediatric care for children in Fairfax and Herndon, Virginia.
Dr. Baugh was born in New York and considers San Marino, California, his hometown. He earned his Bachelor of Arts in human biology at Stanford University and his medical degree from George Washington University in 1980. He completed his pediatrics residency training at the William Beaumont Army Center in 1983.
Prior to joining Virginia Pediatric Group in 1989, Dr. Baugh served in the U.S. Army in Missouri and Belgium. He also completed an Infectious Disease Fellowship at the Tripler Army Medical Center in Honolulu, Hawaii. Dr. Baugh has received numerous teaching awards, including Best Pediatric Resident Teaching Award, Best Ambulatory Pediatric Attending Teacher at Inova Fairfax Children's Hospital 1999, 2005, 2011, and a Teacher Excellence Award from Virginia Commonwealth University in 2010.
Dr. Baugh's interests in pediatrics are multifaceted. His professional enjoyment stems from his intrigue into the many facets of child health and development and how children and families can thrive. He enjoys seeing the human brain develop and adapt as a child is nurtured, loved, and educated. He also likes learning about issues in infectious illnesses, both here and abroad. More recently, international adoption has become an interest as it involves child development, sometimes infectious illnesses, and always international medicine.
In recent years, Dr. Baugh has traveled internationally to promote pediatric education training efforts in Haiti. He is board certified by the American Board of Pediatrics and is proficient in French.
In his spare time, he enjoys tennis, exercise, hiking, biking, French, music, travel, and gardening. He has two grown children and resides in Fairfax with his wife.
Lorena Botero-Calderon, MD, FAAP, is a board-certified pediatrician and pediatric nephrologist committed to delivering personalized, evidence-based care to children and their families at Virginia Pediatric Group in Fairfax, Virginia.
Born and raised in Colombia, Dr. Botero-Calderon appreciates the significance of cultural competence in providing compassionate and effective healthcare. She earned her medical degree from Universidad del Valle in Cali, Colombia, before moving to the United States. There, she completed her pediatric residency at Cincinnati Children's Hospital Medical Center in Ohio, followed by a pediatric nephrology fellowship at Children's National Hospital Medical Center in Washington, DC.
At Virginia Pediatric Group, Dr. Botero-Calderon strives to offer comprehensive medical care and practical guidance, becoming a valuable resource for families as their children grow and develop. Her goal is to help her patients achieve their healthiest and happiest selves. She has particular interests in newborn care and asthma, ensuring these areas receive the dedicated attention they require.
In her free time, Dr. Botero-Calderon enjoys discovering new restaurants and traveling. She resides in Washington, DC, with her husband, embracing the rich cultural and culinary experiences the city offers. Her diverse background and dedication to her patients make her a trusted and respected physician in her community.
Ranjana Jain, M.D., F.A.A.P., is a board-certified pediatrician and a fellow of the American Academy of Pediatrics. Alongside the team at Virginia Pediatric Group, Dr. Jain is dedicated to helping families in Fairfax and Herndon, Virginia, keep their children healthy and happy!
Dr. Jain was born in New York City and grew up in rural southwest Virginia. She received her Bachelor of Arts in chemistry from the University of Virginia and her medical degree from the Medical College of Virginia/VCU. She completed her pediatric residency at North Shore University/Schneider's Children's Hospital in Long Island, New York, in 2002.
Prior to joining Virginia Pediatric Group in 2003, Dr. Jain worked with her father at his pediatric practice in her hometown. She is interested in all aspects of pediatric practice and enjoys seeing her patients grow into young adults. In 2015, Dr. Jain was recognized as one of Washingtonian's Top Docs.
Outside of work, Dr. Jain's hobbies include running, skiing, hiking, traveling, and yoga. She lives in Falls Church, Virginia, with her husband and two young boys.
Reena Kaul, M.D., M.P.H., F.A.A.P., is a board-certified pediatrician dedicated to providing compassionate, high-quality, and family-centered care. Dr. Kaul sees children in Fairfax, Herndon, and Aldie, Virginia, at Virginia Pediatric Group.
Dr. Kaul was born in Oklahoma and spent her childhood in Stone Mountain, Georgia. In 1995, she earned her Bachelor of Science in bioengineering at the University of California, San Diego, as a Regents' Scholar. She then completed her Master of Public Health in Community Health Sciences/Child Health Policy at the University of California Los Angeles in 1997.
While she enjoyed working in child health policy advocacy at Maternal and Child Health Access in Los Angeles on the community health level, Dr. Kaul ultimately decided that providing child and family-centered health care at the personal level is where she could make the most difference in the lives of children.
In 2002, Dr. Kaul earned her medical degree at the University of Southern California-Keck School of Medicine with a National Health Services Corps (NHSC) Scholarship. She completed her pediatrics residency training at the Children's Hospital and Research Center Oakland in 2005.
After training, she worked as an NHSC scholar at a private, non-profit health center in the underserved area of Lehigh Acres, Florida, for three years. She then moved to Bergen County, New Jersey, where she worked in a large private practice prior to joining the Virginia Pediatric Group in 2013.
She is currently the President of the Health Connect IPA. She is also an Assistant Professor of Medical Education at the University of Virginia School of Medicine.
Dr. Kaul enjoys helping guide children and families towards health and well-being from birth through adolescence. Her areas of interest include preventive medicine, nutrition, breastfeeding promotion, dermatology, and infectious disease.
In her free time, Dr. Kaul enjoys spending time with her family, dancing, listening to music, cooking, and traveling. She resides in Herndon, Virginia, with her husband and their two young sons.
Russell Libby, M.D., F.A.A.P., is the founder of Virginia Pediatric Group and has acted as the practice president since its inception in 1982. "It is a privilege to be a pediatrician, and I take great pride in helping children and their families grow and thrive from infancy to young adulthood." Virginia Pediatric Group has convenient locations in Fairfax, Herndon, and Great Falls, Virginia.
Dr. Libby was born and raised in the Washington, D.C., area. He received his Bachelor of Science in zoology and his Doctor of Medicine at George Washington University. He completed his pediatrics residency at Georgetown University Hospital in 1982 and is certified by the American Board of Pediatrics. He was also certified as a home care medical director by the American Academy of Home Care Physicians in 1998.
Dr. Libby has been committed to helping doctors work together to provide high-quality and cost-effective care. He is a founding director and past president of HealthConnect IPA, a primary care Independent Practice Association. He was been Chief of the General Pediatrics section at Inova Children's Hospital from 2000 to 2022, and a member of the hospital leadership committee.
Dr. Libby has been named best pediatrician in the Washington area by Families Magazine for more than 20 years and is consistently listed among Washingtonian's and Northern Virginia Magazine's top doctors. He spent many years hosting educational television shows on medicine and health care, including "Dr. Libby's World of Medicine," and was the host of the weekly ABC radio show "To Your Health." He was the lead editor and contributing author of Guidelines for Pediatric Home Health Care, published by the American Academy of Pediatrics.
He has authored numerous articles, chapters for books, opinion pieces for national media, and major policy statements for both the Medical Society of Virginia and the American Academy of Pediatrics. He has been President of the Medical Society of Northern Virginia and was President of the Medical Society of Virginia from 2012-2013. Dr. Libby is a delegate at the American Medical Association, representing the Integrated Physician Practice Section, and is a Board member of the Physicians Foundation, where he has led initiatives on physician wellness, telehealth, and addressing social determinants of health. He is on the Editorial Advisory Board and an author for the prestigious pediatric journal, Contemporary Pediatrics.
Dr. Libby has three grown children and resides in Northern Virginia with his wonderful wife. In his free time, he enjoys skiing, cycling, playing guitar, and creating stained glass art.
Sandy Huynh, M.D., F.A.A.P., is a board-certified pediatrician who provides comprehensive care to children in Fairfax, Great Falls, Herndon, and Aldie, Virginia. Dr. Huynh brings over a decade of experience to the team at Virginia Pediatric Group.
Dr. Huynh was raised in Kansas. She earned her Bachelor of Arts in biology at the University of Kansas, graduating with distinction, and completed her medical degree at the University of Kansas School of Medicine in 2010. While in medical school, she was inducted into the Gold Humanism Honor Society, which recognizes students, residents, and faculty who are exemplars of compassionate patient care and who serve as role models, mentors, and leaders in medicine. In 2013, she completed her pediatrics residency training at Inova Children's Hospital in Falls Church, Virginia, where she was selected to be Chief Resident for the following year.
Dr. Huynh joined the team at Virginia Pediatric Group in 2013. She is passionate about providing high-quality, unrushed pediatric care and is proud to partner with families throughout the area. Dr. Huynh is board certified by the American Board of Pediatrics and is an Instructor of Pediatrics for the VCU School of Medicine. She is also an Assistant Professor of Medical Education at the University of Virginia School of Medicine.
Dr. Huynh is an avid sports fan who can be found cheering on the Kansas Jayhawks, Kansas City Chiefs, and Kansas City Royals. She lives in Fairfax, Virginia, with her husband and daughters.
Dr. Shruti K Berlin, M.D., is a pediatrician providing individualized and compassionate care to families in Herndon, Fairfax, and Aldie, Virginia, alongside the team at Virginia Pediatric Group since 2022.
Dr. Berlin was born in Pittsburgh, PA but considers Herndon, VA her hometown. Growing up in a South Indian household, she is aware of how significant culturally competent medicine can be for a family. She graduated from Herndon High School in 2009 and went on to earn her Bachelor of Arts degree in Neurobiology with a minor in Medical Anthropology from Boston University. Dr. Berlin earned her Masters in Medical Sciences and medical degree from Eastern Virginia Medical School in Norfolk, VA. In 2022, she completed her pediatric residency training at L.J. Murphy Inova Children's Hospital in Falls Church, VA.
Her goal at Virginia Pediatric Group is to provide evidence-based pediatric care that is appropriate for your family. Being a mother of young children herself, Dr. Berlin recognizes the need for practical parenting and medical advice and hopes to be a useful resource for Northern Virginia parents. Her special interests include Breastfeeding Medicine, newborn care, complex and preventative care.
In her free time, Dr. Berlin enjoys spending time with her husband (who she met in 5th grade), toddler and infant sons. She lives in Sterling, VA and loves to explore new restaurants and wineries in the area.
Tuc Nguyen, M.D., F.A.A.P., is board-certified by the American Board of Pediatrics and a fellow of the American Academy of Pediatrics. She provides compassionate and comprehensive care to children throughout Aldie, Fairfax, and Great Falls, Virginia, at Virginia Pediatric Group.
Dr. Nguyen was born in Vietnam and raised in the Northern Virginia area. She earned her Bachelor of Arts in biology from the University of Virginia in 1992 and went on to the National Institutes of Health to conduct clinical research trials on pediatric obesity. In 2004, she earned her medical degree at Virginia Commonwealth University in Richmond, Virginia.
In 2008, Dr. Nguyen completed her pediatric residency at Inova Children's Hospital. She worked in a pediatric group practice in Loudoun County for 10 years prior to joining Virginia Pediatric Group in 2018.
Dr. Nguyen is very involved in training the next generation of pediatric health care providers. She is currently an assistant professor at the University of Virginia and helps train third-year medical students. She also mentors pediatric residents at the Inova Children's Hospital.
At Virginia Pediatric Group, Dr. Nguyen practices all aspects of general pediatrics, and her special interests include breastfeeding, nutrition/obesity prevention, adolescent medicine including gynecological health, and mental health. She is trained by the REACH Institute to assess, diagnose, and treat common pediatric mental health conditions like ADHD, anxiety, and depression. Dr. Nguyen believes it is a great honor to be a pediatrician and a privilege to work with children and their families.
In her free time, she enjoys cooking, gardening, and practicing yoga. She is fluent in Vietnamese and lives in Vienna, Virginia, with her husband, three children, and their dog.
Karen O'Hara, NP, is a nationally-certified pediatric nurse practitioner who has been practicing pediatrics for over a decade in the Fairfax, Virginia, area. She is proud to partner with children and their families at Virginia Pediatric Group.
Karen was born and raised in Virginia. She studied biochemistry at Virginia Institute of Technology and completed her Bachelor of Science in nursing with a pediatric focus at George Mason University. She then completed her Master of Science in Nursing-Pediatric Nurse Practitioner degree at the University of Maryland. Prior to joining Virginia Pediatric Group in 2008, Karen practiced pediatrics at Stanford University-affiliated Lucile Packard Children's Hospital.
Karen is a devoted pediatric nurse practitioner who focuses on empowering and educating parents to be their child's best advocate. She places a strong emphasis on preventive medicine and the safety of children. Karen adores children and dedicates her lifelong career to making children healthier and live better lives. She resides in Alexandria, Virginia, with her three children.