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. Armen Isaiants, M.D.North Hollywood, CA · $123 in drug and device payments (2025) ·
(888) 530-4415 Dr. Colin RobinsonNorth Hollywood, CA · No drug or device payments recorded (2025) ·
(800) 851-0966 Dr. David Parris, MDNorth Hollywood, CA · $302 in drug and device payments (2025) ·
(818) 755-0391 Dr. Edwin Shulkin, MDNorth Hollywood, CA · No drug or device payments recorded (2025) ·
(818) 508-9190 Dr. Kenyon Luo, MDNorth Hollywood, CA · No drug or device payments recorded (2025) ·
(818) 769-0995 Dr. Leonard Moore, MDNorth Hollywood, CA · $90 in drug and device payments (2025) ·
(818) 766-3982 Dr. Lorie Kavafyan, D.O.North Hollywood, CA · $171 in drug and device payments (2025) · Telehealth ·
(818) 487-0040 Dr. Maneli Mansoori, M.D.North Hollywood, CA · $104 in drug and device payments (2025) ·
(818) 985-8323 Dr. Mohammad Alam, MDNorth Hollywood, CA · $125 in drug and device payments (2025) ·
(716) 785-4449 Dr. Noha Barsoum, M.D.North Hollywood, CA · $187 in drug and device payments (2025) · Telehealth ·
(818) 487-0040 Dr. Oganes Paronian, MDNorth Hollywood, CA · $324 in drug and device payments (2025) ·
(818) 755-8000 Dr. Roger Peeks, M.D.North Hollywood, CA · $55 in drug and device payments (2025) ·
(818) 301-6320 Dr. Sevak Minassian, MDNorth Hollywood, CA · $128 in drug and device payments (2025) ·
(818) 755-0391 Dr. Van Veloso, M.D.North Hollywood, CA · $293 in drug and device payments (2025) · Telehealth ·
(818) 596-5400 Dr. Alan Darush, M.D.Northridge, CA · $332 in drug and device payments (2025) ·
(818) 280-0700 Dr. Alex Fridman, M.D.Northridge, CA · $87 in drug and device payments (2025) ·
(818) 646-1771 Dr. Ali Ozhand, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 654-3400 Dr. Arthur Gordon, MDNorthridge, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 886-4028 Dr. Christopher Buttelman, MDNorthridge, CA · $312 in drug and device payments (2025) ·
(818) 832-7802 Dr. Christopher Chow, MDNorthridge, CA · $2,484 in drug and device payments (2025) · Telehealth ·
(818) 341-4401 Dr. Daniel Lewis, MD.Northridge, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 734-3625 Dr. Darin Buschmann, M.D.Northridge, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 886-4028 Dr. Elliot Munjack, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 886-0932 Dr. Emily Ryan, MDNorthridge, CA · $28 in drug and device payments (2025) ·
(818) 637-2000 Dr. Fares Rabadi, M.D.Northridge, CA · $44 in drug and device payments (2025) ·
(818) 775-0519 Dr. George Sarka, MD, MPH, FACP, FACRNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 677-3666 Dr. Gurleen Bhasin, MDNorthridge, CA · $23 in drug and device payments (2025) · Telehealth ·
(818) 743-5700 Dr. H Azadeh, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 885-7611 Dr. James Merrin, M.D.Northridge, CA · $47 in drug and device payments (2025) ·
(818) 677-3655 Dr. Jason Schnack, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 421-4243 Dr. Lesley Prince, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 885-5480 Dr. Lev Gelman, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 637-2000 Dr. Lilly Wilen, M.D.Northridge, CA · $1,803 in drug and device payments (2025) · Telehealth ·
(818) 831-3227 Dr. Maogang Shao, M.D.Northridge, CA · $35 in drug and device payments (2025) ·
(818) 637-2000 Dr. Mariver Salcedo, DO.Northridge, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 794-3610 Dr. Masoud Azizad, MDNorthridge, CA · $2,850 in drug and device payments (2025) · Telehealth ·
(818) 341-4401 Dr. Minas Kochumian, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 709-5154 Dr. Mohammed Farooqui, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 349-1262 Dr. Nkolika Akpati, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 486-6545 Dr. Parviz Amini, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 998-6000 Dr. Robert Riechmann, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 401-7859 Dr. Ronald Tung, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 993-6996 Dr. Ruchika Bhasin, MDNorthridge, CA · $1,172 in drug and device payments (2025) · Telehealth ·
(818) 349-1262 Dr. Saman Fakheri, M.D.Northridge, CA · $1,176 in drug and device payments (2025) · Telehealth ·
(818) 923-5453 Dr. Samia Boctor, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 677-3666 Dr. Samuel Feizi, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 885-5480 Dr. Shahid Khan, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 357-2262 Dr. Sharon Grewal, MDNorthridge, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 886-4028 Dr. Siamak Etehad, MDNorthridge, CA · $1,397 in drug and device payments (2025) · Telehealth ·
(818) 831-7767 Dr. Steven YorkNorthridge, CA · No drug or device payments recorded (2025) ·
(661) 272-0240 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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