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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 in Los Angeles1,417 providers
Internal Medicine in San Francisco1,322 providers
Internal Medicine in San Diego970 providers
Internal Medicine in Sacramento602 providers
Internal Medicine in Oakland434 providers
Internal Medicine in San Jose433 providers
Internal Medicine in Stanford383 providers
Internal Medicine in Fresno339 providers
Internal Medicine in Torrance230 providers
Internal Medicine in Long Beach225 providers
Internal Medicine in Bakersfield210 providers
Internal Medicine in Loma Linda209 providers
Internal Medicine in Palo Alto189 providers
Internal Medicine in Anaheim188 providers
Internal Medicine in Orange188 providers
Internal Medicine in Riverside188 providers
Internal Medicine in Walnut Creek184 providers
Internal Medicine in Santa Monica170 providers
Internal Medicine in La Jolla161 providers
Internal Medicine in Roseville159 providers
Internal Medicine in Irvine155 providers
Internal Medicine in Beverly Hills152 providers
Internal Medicine in Santa Clara142 providers
Internal Medicine in Pasadena138 providers

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. Manpreet Bains, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 547-7177
Dr. Marinette Bernardo, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 373-2829
Dr. Maurice Hamilton, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Mehmet Vural, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 467-6432
Dr. Melanio Castro, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Mita Gordo, MD
Stockton, CA · $158 in drug and device payments (2025) · Telehealth · (209) 957-7050
Dr. Mrinmayee Naik, M.D.
Stockton, CA · $153 in drug and device payments (2025) · (209) 943-2000
Dr. Mussie Almedom, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Mya-mya Win, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Nivedita Doshi, M.D.
Stockton, CA · $74 in drug and device payments (2025) · (209) 547-5741
Dr. Pallavi Pothuri, M.D.
Stockton, CA · No drug or device payments recorded (2025) · (551) 689-4477
Dr. Peter Drummond, DO
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 957-7050
Dr. Rakesh Baboo, MD, MBBS
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 475-5500
Dr. Ramandeep Sidhu, M.D.
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 954-3370
Dr. Richard Camacho, MD
Stockton, CA · $178 in drug and device payments (2025) · (209) 227-7806
Dr. Russell Yamamoto, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 547-7177
Dr. Sailaja Kalidasu
Stockton, CA · No drug or device payments recorded (2025) · (209) 953-3700
Dr. Saleha Ahmed, M.D.
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 957-7050
Dr. Samarth Chittargi, M.D
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 476-2080
Dr. Samay Patel, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 467-6432
Dr. Sampathkumar Mani, MD
Stockton, CA · $44 in drug and device payments (2025) · (209) 467-6432
Dr. Sana Chaudhary, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 574-5941
Dr. Seema Abbasi, MBBS
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 954-3370
Dr. Sharad Arora, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Shaukat Shah, MD
Stockton, CA · $19 in drug and device payments (2025) · (209) 939-3840
Dr. Shien Tseng, M.D.
Stockton, CA · No drug or device payments recorded (2025) · (209) 944-6343
Dr. Sidra Suess, M.D.
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2080
Dr. Sundar Natarajan, M.D.
Stockton, CA · $224 in drug and device payments (2025) · (209) 534-4127
Dr. Suresh Hosuru, M.D.,
Stockton, CA · No drug or device payments recorded (2025) · (209) 957-7050
Dr. Swapandeep Sandhu
Stockton, CA · No drug or device payments recorded (2025) · Telehealth · (209) 954-3370
Dr. Tanveer Bajwa, M.D.
Stockton, CA · $31 in drug and device payments (2025) · Telehealth · (209) 478-4041
Dr. Tat Lee, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 888-4128
Dr. Tuan Tran, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Velarde Raras, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Vincent Pennisi, MD
Stockton, CA · $334 in drug and device payments (2025) · (209) 227-7806
Dr. Virender Kamboj, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 952-1434
Dr. Walter Yarbrough, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 957-7050
Dr. Wilhelm Wang, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Xiaolu Sun, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Xing-jian Lu, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Yeji Cha, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 476-2000
Dr. Yi-po Wu, M.D.
Stockton, CA · No drug or device payments recorded (2025) · (209) 464-4800
Dr. D. Steven Fox, M.D.
Studio City, CA · No drug or device payments recorded (2025) · (310) 383-3355
Dr. Evan Vidar, MD
Studio City, CA · $128 in drug and device payments (2025) · (818) 980-7800
Dr. Lester Garfinkel, M.D.
Studio City, CA · No drug or device payments recorded (2025) · (818) 760-2332
Dr. Melina Jampolis, M.D.
Studio City, CA · $27 in drug and device payments (2025) · (818) 392-8644
Dr. Richard Powell, M.D.
Studio City, CA · $222 in drug and device payments (2025) · (800) 734-9950
Dr. Sandeep Kapoor, M.D.
Studio City, CA · $508 in drug and device payments (2025) · Telehealth · (818) 762-1167
Dr. Shilpa Sayana, M.D
Studio City, CA · $223 in drug and device payments (2025) · Telehealth · (818) 331-4386
Dr. Brian Nguyen, M.D.
Sun City, CA · $346 in drug and device payments (2025) · Telehealth · (951) 301-9339

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.

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

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Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in California? Get featured.