About
Darryl Hein, MD is a board-certified internist who has practiced in Los Gatos, California since 1999. He earned his undergraduate degree in Biomedical Sciences from UC Riverside, then completed his medical degree at UCLA School of Medicine. His Internal Medicine residency and fellowship both took place through UCLA programs, giving him deep roots in the UCLA training system.
Before returning to Northern California, Dr. Hein served as an Assistant Clinical Professor at both UCLA School of Medicine and Stanford University School of Medicine. He holds a special certification as a Certified Clinical Bone Densitometrist and focuses his clinical interests on preventive health, heart disease, hypertension, diabetes, and osteoporosis prevention. He is a member of the Santa Clara County Medical Association, the American College of Physicians, the American Medical Association, and the California Medical Association. Outside the office, Dr. Hein travels with his wife and two children and plays tennis.
Education & Training
Medical School
UCLA School of Medicine
Residency
Internal Medicine, UCLA San Fernando Valley Program
Fellowship
Internal Medicine, UCLA School of Medicine
Certifications
Conditions Treated
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Frequently Asked Questions
Dr. Hein focuses on preventive health, heart disease, hypertension, diabetes, and osteoporosis prevention. He also treats high cholesterol, lung disease, sleep disorders, sinus infections, and other acute and chronic conditions common in adult patients. His broad internal medicine training allows him to serve as a primary point of care across a wide range of health needs.
Yes. Dr. Hein holds board certification in Internal Medicine. He also carries the credential of Certified Clinical Bone Densitometrist, reflecting his particular interest in bone health and osteoporosis prevention.
Dr. Hein earned his medical degree from UCLA School of Medicine. He completed both his Internal Medicine residency and fellowship through UCLA programs. Before opening his Los Gatos practice, he served as an Assistant Clinical Professor at both UCLA School of Medicine and Stanford University School of Medicine.
Dr. Hein has practiced internal medicine in Los Gatos since 1999. He built his private practice after completing his academic faculty roles at UCLA and Stanford, bringing that depth of training directly to his Northern California community.
Dr. Hein focuses on prevention over reactive treatment. He builds a personalized wellness plan with each member, sets measurable health goals, and monitors results on an ongoing basis. He takes time during each visit to explain test results and discuss practical steps patients can take to improve their health.
Yes. Dr. Hein is a Certified Clinical Bone Densitometrist with a strong focus on osteoporosis prevention. He incorporates bone density screening into his preventive care approach, particularly for patients at elevated risk.
Dr. Hein holds memberships in the Santa Clara County Medical Association, the American College of Physicians, the American Medical Association, and the California Medical Association. These affiliations reflect his ongoing engagement with the broader medical community.
Dr. Hein sees adults across a broad range of health situations. His patient panel includes individuals managing chronic conditions such as diabetes and hypertension, as well as healthy adults who want a proactive, prevention-focused physician. He does not treat pediatric patients.
Doctor profile last updated March 26, 2026