Internal Medicine Doctors in California
Data updated monthly · Last refresh October 2026
17,715 Internal Medicine providers practice in California, including 4,245 (24%) offering telehealth. The largest concentration is in Los Angeles. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
17,715providers
4,245telehealth
Los Angelestop city
Internal Medicine by city in California
Choose a city to see providers there.
Internal Medicine providers in California
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Mark Rolfsen, MDEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 633-6501 Dr. Michael Steadman, M.DEncinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 230-2251 Dr. Mohammad Naqvi, D.OEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Nadia Nunes Cavalcante Parr, M.D.Encinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 479-3900 Dr. Nova Rahal, M.D.Encinitas, CA · $18 in drug and device payments (2025) ·
(760) 230-2251 Dr. Patricia Chu, MDEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 753-7842 Dr. Preston Hale, MDEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 479-3900 Dr. Punam Chowdhury, MDEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Qinwen Zhou, MDEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Ravichandra Komatireddy, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Richard Tran, M.D.Encinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 230-2251 Dr. Robert Bickerton, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 944-7500 Dr. Robert Huang, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Robert Matorin, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Robert Stephenson, M.D.Encinitas, CA · $1,218 in drug and device payments (2025) · Telehealth ·
(760) 943-6730 Dr. Samer Kanno, MDEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Samir Mehrotra, MDEncinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 436-6365 Dr. Sarah Mcmurray, D.O.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2253 Dr. Shetal Stewart, M.D.Encinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(720) 230-2252 Dr. Sonia Ahuja, M.D.Encinitas, CA · $25 in drug and device payments (2025) · Telehealth ·
(760) 230-2251 Dr. Steven Pham, MDEncinitas, CA · $64 in drug and device payments (2025) · Telehealth ·
(760) 630-6501 Dr. Taiye Gilles, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 642-7009 Dr. Victoria Mirza, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Warren Pleskow, MDEncinitas, CA · $364 in drug and device payments (2025) ·
(760) 436-3988 Dr. Wesley Shih, M.D.Encinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Yang Xue, M.DEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Yawen Cheng, MDEncinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 479-3900 Dr. Yuk Ching Cecily Chan, DOEncinitas, CA · No drug or device payments recorded (2025) ·
(760) 230-2251 Dr. Allan Klass, M DEncino, CA · No drug or device payments recorded (2025) ·
(818) 986-1357 Dr. Amir Raeesy-nezhad, MDEncino, CA · No drug or device payments recorded (2025) ·
(818) 701-0017 Dr. Darius Gharib, M.D.Encino, CA · $169 in drug and device payments (2025) · Telehealth ·
(818) 501-5201 Dr. David Kayne, M.D.Encino, CA · $93,485 in drug and device payments (2025) · Telehealth ·
(818) 990-1067 Dr. David Zarian, MDEncino, CA · $3,102 in drug and device payments (2025) ·
(818) 986-7399 Dr. Dean Weiss, M.D.Encino, CA · No drug or device payments recorded (2025) ·
(310) 437-3407 Dr. Esfandiar Esfandiarifard, MDEncino, CA · $62 in drug and device payments (2025) · Telehealth ·
(818) 990-4030 Dr. Ikechukwu Arene, M.D.Encino, CA · No drug or device payments recorded (2025) ·
(818) 290-3289 Dr. Isaac Adatto, M.D.Encino, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 990-1067 Dr. Jan LarssonEncino, CA · No drug or device payments recorded (2025) ·
(760) 641-1692 Dr. Jasmin Javaherian, D.OEncino, CA · $23,559 in drug and device payments (2025) ·
(818) 501-3366 Dr. Jonathan Raiman, M.D.Encino, CA · $176 in drug and device payments (2025) · Telehealth ·
(818) 788-7500 Dr. Kamran Rabbani, M.D.Encino, CA · $5,098 in drug and device payments (2025) ·
(818) 788-9200 Dr. Kanishka Wijegunaratne, M.D.Encino, CA · No drug or device payments recorded (2025) ·
(310) 388-6798 Dr. Keyvan Shirazi, M.D.Encino, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 789-3964 Dr. Lara Kose, MDEncino, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 461-8148 Dr. Masoud Sadighpour, M.D.Encino, CA · No drug or device payments recorded (2025) ·
(818) 461-9070 Dr. Melvin Khaw, M.D.Encino, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 990-1067 Conditions Internal Medicine providers in California commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in California?There are 17,715 Internal Medicine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in California offer telehealth?Yes. 4,245 of the 17,715 Internal Medicine providers in California (about 24%) report offering telehealth services in CMS data.
Which cities in California have the most Internal Medicine providers?Los Angeles (1,417), San Francisco (1,322), San Diego (970) have the highest concentration of Internal Medicine providers in California.
How many Internal Medicine providers in California received drug or device company payments?5,614 of 17,715 Internal Medicine providers in California (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in California treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Internal Medicine Doctors in California work in independent practices or large health systems?Among 10,847 Internal Medicine Doctors in California enrolled in Medicare, 20% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 67% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Internal Medicine Doctors in California work at?According to CMS facility affiliation records, the California hospitals where the most Internal Medicine Doctors hold privileges are Stanford Health Care in Stanford; UCSF Medical Center in San Francisco; Ronald Reagan UCLA Medical Center in Los Angeles.
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