CAJON MEDICAL GROUP - Key Persons


Dr. Balu Gadhe

Job Titles:
  • Internal Medicine
Dr. Balu Gadhe, MD is a board-certified internist with nearly 30 years of practice in Internal Medicine and Geriatrics (elder care) focusing on improving his patients quality of life by controlling the chronic medical conditions that affect them. Dr. Gadhe has extensive experience in managing dementia, diabetes, hypertension, congestive heart failure, Chronic Obstructive Pulmonary Disease (COPD), chronic kidney disease, asthma, post-stroke care, and many other conditions. In addition to seeing patients in the outpatient facilities , Dr.Gadhe also rounds at Board and Care at Assitied Living Facilities.

Dr. David M. Sapien Jr.

Job Titles:
  • Internal Medicine
  • Physician With a Background in Internal Medicine
Dr. David M. Sapien Jr. is a dedicated physician with a background in Internal Medicine. He obtained his Bachelor of Science in Biology from the University of California Riverside before pursuing his medical degree from the University of Los Angeles School of Medicine. Board-certified in Internal Medicine by the American Board of Internal Medicine, Dr. Sapien is licensed by the Medical Board of California as a Physician and Surgeon. He holds a DEA certificate and has proven his proficiency by actively practicing and engaging in various healthcare settings. Dr. Sapien's commitment to patient well-being and his diverse experience make him a valuable asset to Cajon Medical Group.

Dr. Laurentiu Istrate

Job Titles:
  • Board - Certified Family Medicine Physician
Dr. Dr. Laurentiu Istrate, a Board-Certified Family Medicine Physician, is known for his extensive medical background and diverse expertise. With a passion for hospitalist care, Dr. Istrate seeks to contribute his skills to a full-time Hospitalist position. Educated at institutions across the globe, Dr. Istrate earned his Doctor of Medicine from Grigore T. Popa University of Medicine and Pharmacy in Romania and later completed his Residency at Oregon Health and Science University. His commitment to medical excellence is further underscored by a Master's in Health Administration from Montana State University . Dr. Istrate's professional journey spans various medical roles. As a Hospitalist Physician at Vituity Group, he has made a significant impact on patient care in California. He brings a wealth of experience to his current position at Cajon Medical Group/Internal Medicine Clinic, where he provides holistic care in various locations.

Dr. Mehul Sonawala

Job Titles:
  • Internal Medicine Physician
  • Physician With Expertise in Internal Medicine
Dr. Mehul Sonawala is an accomplished physician with expertise in Internal Medicine, Bioengineering, and Cardiology. His dedication to healthcare has spanned across various clinical and research roles. With an MD in Internal Medicine from LAC+USC Medical Center and a Master's in Bioengineering from Clemson University, Dr. Sonawala's academic foundation is formidable. His wide-ranging clinical positions include serving as an MD at Cajon Medical Group PC. and First Step Optimal Health Corporation, demonstrating his commitment to comprehensive patient care. Dr. Sonawala is deeply involved in cutting-edge research. He collaborates with esteemed researchers to develop innovative biomarkers for diseases like COPD and inflammation, showcasing his commitment to advancing medical diagnostics. His collaborations extend to renowned organizations like Janssen Pharmaceuticals and others like Novartis Pharmaceuticals, where he applies medical strategies to reduce health risks. With an impressive list of publications and presentations, Dr. Sonawala's expertise in cardiology and internal medicine is widely recognized. His commitment to patient care, research, and innovation in healthcare defines his professional journey. Beyond medicine, he enjoys DIY projects, spending time with family, and is an avid sports enthusiast.

Dr. Sachin Chatta

Job Titles:
  • Certified Family Medicine Physician
  • Internal Medicine
Dr. Sachin Chatta is a board-certified family medicine physician. He grew up in Southern California, completed his medical degree at America University of Antigua and completed residency with Ellis Hospital in Upstate New York. His medical practice includes care of the whole family, with special interest in preventative health and obesity management . Outside of medicine, he enjoys DIY projects, spending time with family, traveling and playing sports.