About
Peter Margolis, MD has practiced internal medicine in the Conejo Valley for 40 years. He earned his undergraduate degree in Psychology from the University of California, Los Angeles in 1975, graduating Magna Cum Laude. He then completed his medical degree at the University of Health Sciences, Chicago Medical School in 1978. His internship and residency in Internal Medicine both took place at Los Robles County+University of Southern California Medical Center, finishing in 1981.
Dr. Margolis holds board certification from the American Board of Internal Medicine and certification from the National Board of Medical Examiners. He maintains an affiliation with Los Robles Hospital, where he served as Chief of Medicine in 1991-1992 and later as Chief of Staff in 1999-2000. His clinical focus spans preventive care, chronic illness management, and acute illness. He believes deeply in partnering with patients to build individualized plans around their specific needs and goals. Patients consistently describe his visits as unhurried, his knowledge as extraordinary, and his bedside manner as genuinely personal. He carries that commitment beyond the office, including conducting morning rounds to check on hospitalized patients.
Education & Training
Undergraduate
University of California, Los Angeles, BA Psychology, 1975, Magna Cum Laude
Medical School
University of Health Sciences, Chicago Medical School, Doctorate of Medicine, 1978
Residency
Internal Medicine, Los Angeles County+University of Southern California Medical Center, 1978-1981
Certifications
Conditions Treated
Who is Dr. Margolis right for?
Dr. Margolis is a strong fit for adults seeking a long-term relationship with an experienced primary care physician. Patients managing chronic conditions like hypertension, diabetes, or heart disease benefit from his focused, individualized approach. He works well with patients who want direct access to their doctor after hours and on weekends. Those who value unhurried visits and a physician who personally handles hospital care will find his practice a natural home.
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Frequently Asked Questions
Dr. Margolis treats a broad range of acute and chronic conditions. His clinical focus includes preventive care, chronic illness management, and acute illness. He also coordinates specialist referrals when patients need additional expertise.
Yes, Dr. Margolis holds board certification from the American Board of Internal Medicine. He also carries certification from the National Board of Medical Examiners. He has maintained these credentials throughout his 40-year career in internal medicine.
Dr. Margolis earned his medical degree from the University of Health Sciences, Chicago Medical School in 1978. He completed his internship and residency in Internal Medicine at Los Angeles County+University of Southern California Medical Center, finishing in 1981.
Dr. Margolis served as Chief of Medicine at Los Robles Hospital in 1991-1992. He later returned as Chief of Staff in 1999-2000. He maintains an active affiliation with Los Robles Hospital today, including conducting morning rounds for hospitalized patients.
Yes. Every visit goes directly to Dr. Margolis. The practice does not route patients to a nurse practitioner or physician assistant. That direct relationship is central to how he delivers care.
Yes. Members reach Dr. Margolis by phone after hours and on weekends. He provides 24/7 physician access as part of the membership. That availability is one of the core benefits of his concierge model.
Yes. Dr. Margolis conducts morning rounds to check on hospitalized patients personally. He also advocates directly for patients during hospital stays. His affiliation with Los Robles Hospital supports this hands-on involvement.
Dr. Margolis practices what he calls patient-centered medicine. He partners with each patient to build an individualized plan around their specific needs and goals. Patients consistently describe his visits as unhurried and his manner as genuinely personal.
Doctor profile last updated March 21, 2026