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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. Ingrid Scharpf, M.D
San Diego, CA · No drug or device payments recorded (2025) · (858) 499-2600
Dr. Ingrid Yang, M.D.
San Diego, CA · $352 in drug and device payments (2025) · (858) 499-2616
Dr. Isabel Cheon, M. D.
San Diego, CA · $21 in drug and device payments (2025) · Telehealth · (858) 214-3150
Dr. Ivy Choo, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 661-7891
Dr. Iyabo Daramola, MD
San Diego, CA · $205 in drug and device payments (2025) · Telehealth · (619) 479-6767
Dr. Jaafar Al-dahwi, MD
San Diego, CA · $2,100 in drug and device payments (2025) · Telehealth · (858) 268-1111
Dr. Jack Hawkins, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-6400
Dr. Jacob Rozich, MD
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (833) 574-2273
Dr. Jacob Wyse
San Diego, CA · No drug or device payments recorded (2025) · (619) 545-6128
Dr. Jacqueline Lee, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 552-7475
Dr. Jadzia Nguyen-khoa, DO
San Diego, CA · No drug or device payments recorded (2025) · (858) 832-2478
Dr. Jaime Arroyo, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-8269
Dr. Jalla Mustafa, DO
San Diego, CA · No drug or device payments recorded (2025) · (858) 939-3400
Dr. James Breitmeyer
San Diego, CA · No drug or device payments recorded (2025) · (858) 759-7540
Dr. James Chen, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 955-7783
Dr. James Earley, D.O.
San Diego, CA · $326 in drug and device payments (2025) · (619) 532-7400
Dr. James Harrell, M.D.
San Diego, CA · $43 in drug and device payments (2025) · (619) 543-5840
Dr. James Kringel, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 528-5000
Dr. James Lin, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 605-7886
Dr. James Morgan, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 499-2600
Dr. James Morgan, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 528-5000
Dr. Jamie Lavender, M.D.
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (858) 499-2600
Dr. Jamison Feramisco, MD, PHD
San Diego, CA · $687 in drug and device payments (2025) · Telehealth · (619) 650-5476
Dr. Jandark Yuseif, M.D.
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (800) 926-8273
Dr. Jane Boyd
San Diego, CA · No drug or device payments recorded (2025) · (619) 563-0507
Dr. Jane Naviaux, MD PHD
San Diego, CA · No drug or device payments recorded (2025) · (619) 933-1408
Dr. Janette Gray, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 814-5500
Dr. Janette Noveras, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-8225
Dr. Janhavi Rao, MD
San Diego, CA · $20 in drug and device payments (2025) · (619) 400-5000
Dr. Jared Dang, MD
San Diego, CA · $67 in drug and device payments (2025) · (858) 832-2478
Dr. Jasmine Ide, M.D.
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (858) 487-1800
Dr. Jason Williams, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 881-9169
Dr. Jeanette Schnierle, MD, MPH
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (800) 926-8273
Dr. Jedidiah Bell
San Diego, CA · No drug or device payments recorded (2025) · (619) 471-0434
Dr. Jeffrey Applestein, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 764-3150
Dr. Jeffrey Cohen
San Diego, CA · $455 in drug and device payments (2025) · Telehealth · (858) 541-0181
Dr. Jeffrey Cullen, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 279-9676
Dr. Jeffrey Krebs, MD
San Diego, CA · $55 in drug and device payments (2025) · (619) 528-5000
Dr. Jeffrey Kwan, MD
San Diego, CA · $110 in drug and device payments (2025) · (619) 532-8983
Dr. Jeffrey Lash, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 279-1212
Dr. Jeffrey Ramos, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 260-7220
Dr. Jeffrey Rauch, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 552-8585
Dr. Jeffrey Stork, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 528-5000
Dr. Jeffrey Sweetwood, D.O.
San Diego, CA · No drug or device payments recorded (2025) · (619) 400-5050
Dr. Jeffrey Weissman, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-6529
Dr. Jenna Lavina
San Diego, CA · No drug or device payments recorded (2025) · (619) 260-7220
Dr. Jenna Wick, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 692-8499
Dr. Jennie Wei, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 271-6962
Dr. Jennifer Barkley, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 499-2600
Dr. Jennifer Blanchard, MD
San Diego, CA · $96 in drug and device payments (2025) · Telehealth · (800) 926-8273

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.