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. Najah Khan, MDLa Jolla, CA · $650 in drug and device payments (2025) ·
(858) 824-1000 Dr. Nashwa Khogali-jakary, D.O.La Jolla, CA · No drug or device payments recorded (2025) · Telehealth ·
(800) 926-8273 Dr. Navid Froutan, MDLa Jolla, CA · $430 in drug and device payments (2025) · Telehealth ·
(858) 554-7272 Dr. Nayana Trivedi, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(760) 436-2449 Dr. Neil Farber, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-6946 Dr. Nicholas Schmidt, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 452-1279 Dr. Nicola Green, MD, PHD, MPHLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 775-4117 Dr. Nicole Quenelle, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-7909 Dr. Pamela Lam, D.O.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-7780 Dr. Pamila Brar, M.D.La Jolla, CA · $41 in drug and device payments (2025) · Telehealth ·
(858) 200-3007 Dr. Paul Thompson, MDLa Jolla, CA · $180 in drug and device payments (2025) ·
(858) 554-3200 Dr. Peter Sacks, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-7875 Dr. Peter Salk, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 459-5935 Dr. Petra Pederson, MD, PHDLa Jolla, CA · $115 in drug and device payments (2025) ·
(858) 554-7272 Dr. Pooja Bhushan, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 761-7541 Dr. Preeti Mehta, M.D.La Jolla, CA · $553 in drug and device payments (2025) ·
(858) 626-7780 Dr. Rami Michael, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-7784 Dr. Ramona Master, MDLa Jolla, CA · $246 in drug and device payments (2025) ·
(858) 321-2150 Dr. Rebecca Riley, M.D.La Jolla, CA · $355 in drug and device payments (2025) · Telehealth ·
(858) 554-7401 Dr. Renate Pilz, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 534-8805 Dr. Robert Barthel, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 472-8461 Dr. Robert Murad, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-7926 Dr. Robert Neveln, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 452-7040 Dr. Robert Parmer, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 552-8585 Dr. Rohit Loomba, MDLa Jolla, CA · $245,285 in drug and device payments (2025) ·
(858) 534-2230 Dr. Roya Kohani, M.D.La Jolla, CA · $54 in drug and device payments (2025) ·
(858) 459-2040 Dr. Sally Kim, M.D.La Jolla, CA · $729 in drug and device payments (2025) · Telehealth ·
(858) 554-7984 Dr. Sandeep Segar, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Sandip Datta, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 822-6563 Dr. Sanjay Mehta, M.D.La Jolla, CA · $295 in drug and device payments (2025) ·
(858) 822-0333 Dr. Sanjeev Shah, M.D.La Jolla, CA · $44 in drug and device payments (2025) · Telehealth ·
(858) 554-7987 Dr. Seda Badalyan, MDLa Jolla, CA · $1,403 in drug and device payments (2025) · Telehealth ·
(858) 457-5555 Dr. Shadi PezeshkiLa Jolla, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 554-1212 Dr. Shaw Eslamian, M.D.La Jolla, CA · $43 in drug and device payments (2025) ·
(858) 692-6535 Dr. Shipra Khushu, M.D.La Jolla, CA · $262 in drug and device payments (2025) · Telehealth ·
(858) 554-7811 Dr. Spencer Hirt, DOLa Jolla, CA · $83 in drug and device payments (2025) · Telehealth ·
(858) 554-7272 Dr. Stephen Miller, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 729-1997 Dr. Stephen Sargeant, M.D.La Jolla, CA · $19 in drug and device payments (2025) ·
(858) 554-7830 Dr. Steven Ruderman, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 452-1361 Dr. Steven Tam, M.D.La Jolla, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 554-6158 Dr. Surya Chetlapalli, M.DLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 626-7782 Dr. Susan Sweeney, M.D. PH.DLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 534-2359 Dr. Tamsin Kelly, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 457-3876 Dr. Thomas Carter, M.D.La Jolla, CA · $52 in drug and device payments (2025) ·
(858) 554-7225 Dr. Thomas Kipps, M.D.La Jolla, CA · $2,455 in drug and device payments (2025) · Telehealth ·
(858) 534-5400 Dr. Thomas Waltman, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-8530 Dr. Tony Reid, M.DLa Jolla, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 822-6440 Dr. Travis Roark, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-3200 Dr. Usha Kumar, M.D.La Jolla, CA · $93 in drug and device payments (2025) ·
(858) 534-8858 Dr. Vedka Begovic, M.D.La Jolla, CA · $48 in drug and device payments (2025) · Telehealth ·
(858) 554-9053 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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