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. Sonia Panjwani, M.D.Victorville, CA · $180 in drug and device payments (2025) ·
(760) 951-5552 Dr. Sumitha Rajkumar, MDVictorville, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 241-8000 Dr. Sunil Abraham, M.D.Victorville, CA · $405 in drug and device payments (2025) ·
(760) 843-7873 Dr. Thein Oo, MDVictorville, CA · No drug or device payments recorded (2025) ·
(760) 241-8000 Dr. Trang Lam, MDVictorville, CA · $442 in drug and device payments (2025) ·
(760) 951-2599 Dr. Venkamma Reddy, MDVictorville, CA · No drug or device payments recorded (2025) ·
(760) 241-8000 Dr. Yash Subherwal, MDVictorville, CA · No drug or device payments recorded (2025) ·
(760) 241-2270 Dr. Zoheir El-hajjaoui, M.D.Victorville, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 241-6666 Dr. Adolph Nava, MDVisalia, CA · $1,918 in drug and device payments (2025) · Telehealth ·
(559) 627-6282 Dr. Ahmad KofahiVisalia, CA · No drug or device payments recorded (2025) ·
(559) 737-4700 Dr. Ahmad Shahroz, MDVisalia, CA · $803 in drug and device payments (2025) · Telehealth ·
(559) 738-7590 Dr. Amit Kamboj, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 738-7532 Dr. Anca Petrascu, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 625-4011 Dr. Angela Pap, M.D.Visalia, CA · No drug or device payments recorded (2025) · Telehealth ·
(559) 738-7529 Dr. Anilkumar Patel, M.D.Visalia, CA · $472 in drug and device payments (2025) · Telehealth ·
(559) 688-8216 Dr. April Manalaysay, D.O.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 624-2000 Dr. Arvindra BrarVisalia, CA · No drug or device payments recorded (2025) ·
(559) 575-9558 Dr. Asma Tariq, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 624-6999 Dr. Bruce Hall, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 738-7543 Dr. Candice Lovelace, D.O.Visalia, CA · $1,466 in drug and device payments (2025) · Telehealth ·
(559) 738-7599 Dr. Charles Newton, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 625-6080 Dr. Chawki Gerges, M.D.Visalia, CA · $675 in drug and device payments (2025) · Telehealth ·
(559) 636-1168 Dr. Diana Moers, D.O.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 499-6500 Dr. Engracia Flores, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(661) 721-2345 Dr. Gilbert Sunio, M.D.Visalia, CA · $291 in drug and device payments (2025) · Telehealth ·
(559) 972-7771 Dr. Gurtej Dhillon, MDVisalia, CA · $80 in drug and device payments (2025) · Telehealth ·
(559) 733-7090 Dr. Harjoth Malli, M.D.Visalia, CA · $1,032 in drug and device payments (2025) ·
(559) 732-0762 Dr. Hedeal Alsalihi, M.D. Dr. Henry Ow-yong, M.D.Visalia, CA · $214 in drug and device payments (2025) ·
(559) 733-6348 Dr. Hung Nguyen, MDVisalia, CA · $123 in drug and device payments (2025) ·
(626) 646-4359 Dr. Jaime Dela Cerna, MDVisalia, CA · No drug or device payments recorded (2025) ·
(559) 625-5556 Dr. Joshua Sutarwan, MDVisalia, CA · No drug or device payments recorded (2025) ·
(844) 767-0540 Dr. Julia Tan, MDVisalia, CA · No drug or device payments recorded (2025) ·
(559) 798-0505 Dr. Laura Russo Herrera, MDVisalia, CA · $347 in drug and device payments (2025) · Telehealth ·
(559) 734-6701 Dr. Lawrence Ginsberg, M.D.Visalia, CA · $741 in drug and device payments (2025) ·
(559) 738-7543 Dr. Leonard Liss, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 754-2556 Dr. Lorena Rasquin Leon, M.D. Dr. Lu Zhao, D.O.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 624-2000 Dr. Mohammed Asfhan Ahmed, DOVisalia, CA · No drug or device payments recorded (2025) ·
(517) 489-2766 Dr. Monica Manga, M.D.Visalia, CA · $41 in drug and device payments (2025) · Telehealth ·
(559) 738-7579 Dr. Mrudula Beesetty, MDVisalia, CA · No drug or device payments recorded (2025) ·
(877) 960-3426 Dr. Naile Barzaga Hazrati, M.D.Visalia, CA · No drug or device payments recorded (2025) ·
(559) 622-8533 Dr. Namrata Adhikari, MDVisalia, CA · No drug or device payments recorded (2025) ·
(877) 960-3426 Dr. Olayinka Omololu, MDVisalia, CA · $1,396 in drug and device payments (2025) · Telehealth ·
(559) 738-7599 Dr. Olusayo Fadiran, MBBS 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.
Related reading on HealthcareDiscovery.AI
Internal Medicine in all 50 states Search all 17,715 in the directory Ask Zach for help choosing
Related
