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Obesity Medicine Doctors (Internal Medicine) in California

Data updated monthly · Last refresh October 2026

17 Obesity Medicine (Internal Medicine) providers practice in California, including 5 (29%) offering telehealth. The largest concentration is in San Diego. 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.

17providers
5telehealth
San Diegotop city

Obesity Medicine (Internal Medicine) by city in California

Choose a city to see providers there.

Obesity Medicine (Internal Medicine) in San Diego2 providers
Obesity Medicine (Internal Medicine) in Roseville2 providers
Obesity Medicine (Internal Medicine) in West Hills2 providers
Obesity Medicine (Internal Medicine) in Los Angeles1 providers
Obesity Medicine (Internal Medicine) in Oxnard1 providers
Obesity Medicine (Internal Medicine) in Stockton1 providers
Obesity Medicine (Internal Medicine) in San Francisco1 providers
Obesity Medicine (Internal Medicine) in Mountain View1 providers
Obesity Medicine (Internal Medicine) in Folsom1 providers
Obesity Medicine (Internal Medicine) in Tustin1 providers
Obesity Medicine (Internal Medicine) in Santa Monica1 providers
Obesity Medicine (Internal Medicine) in Rancho Cordova1 providers
Obesity Medicine (Internal Medicine) in Palo Alto1 providers
Obesity Medicine (Internal Medicine) in Lakewood1 providers

Where Obesity Medicine Doctors (Internal Medicine) in California practice

From CMS Medicare enrollment records covering 7 of the 17 providers listed here (41%). Providers who do not bill Medicare are not included in these figures.

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Obesity Medicine (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. Ronnie Stone, M.D.
Folsom, CA · No drug or device payments recorded (2025) · (916) 351-9457
Dr. Gerald Cox, MD, MPH
Lakewood, CA · No drug or device payments recorded (2025) · (657) 708-0074
Dr. Amanda Velazquez, MD
Los Angeles, CA · $22,091 in drug and device payments (2025) · Telehealth · (310) 423-8350
Dr. Sooji Rugh, M.D.
Mountain View, CA · $122 in drug and device payments (2025) · (650) 396-8080
Dr. Harpreet Singh, MD
Oxnard, CA · $28 in drug and device payments (2025) · (805) 486-1601
Dr. Nicole Grant, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000
Dr. Stephanie Roberts, M.D.
Rancho Cordova, CA · No drug or device payments recorded (2025) · (916) 363-2229
Dr. Anthony Huynh, D.O.
Roseville, CA · $15 in drug and device payments (2025) · Telehealth · (916) 774-8885
Dr. Ed Hendricks, M.D.
Roseville, CA · $122 in drug and device payments (2025) · (916) 773-1191
Dr. Arthur Aronson, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 866-3333
Dr. Eduardo Grunvald, M.D
San Diego, CA · $13,948 in drug and device payments (2025) · Telehealth · (800) 926-8273
Dr. Jill Blickley, DO
San Francisco, CA · No drug or device payments recorded (2025) · (855) 527-1850
Dr. Melissa Chung, MD
Santa Monica, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-8173
Dr. Jagraj Basi, MD
Stockton, CA · No drug or device payments recorded (2025) · (209) 524-2000
Dr. Quyen Dao, M.D.
Tustin, CA · No drug or device payments recorded (2025) · Telehealth · (714) 835-9550
Dr. Randall Caldron, MD
West Hills, CA · No drug or device payments recorded (2025) · (818) 518-5980
Dr. Viktoriya Yanchuk, D.O.
West Hills, CA · $403 in drug and device payments (2025) · (747) 302-4123

Common questions

How many Obesity Medicine (Internal Medicine) providers are in California?

There are 17 Obesity Medicine (Internal Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Obesity Medicine (Internal Medicine) providers in California offer telehealth?

Yes. 5 of the 17 Obesity Medicine (Internal Medicine) providers in California (about 29%) report offering telehealth services in CMS data.

Which cities in California have the most Obesity Medicine (Internal Medicine) providers?

San Diego (2), Roseville (2), West Hills (2) have the highest concentration of Obesity Medicine (Internal Medicine) providers in California.

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.

Related reading on HealthcareDiscovery.AI

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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 Obesity Medicine (Internal Medicine) in California? Get featured.