HealthcareDiscovery.AI / Doctors / California / Endocrinology, Diabetes & Metabolism

Endocrinologists in California

Data updated monthly · Last refresh October 2026

1,135 Endocrinology, Diabetes & Metabolism providers practice in California, including 586 (52%) 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.

1,135providers
586telehealth
Los Angelestop city

Endocrinology, Diabetes & Metabolism by city in California

Choose a city to see providers there.

Endocrinology, Diabetes & Metabolism in Los Angeles107 providers
Endocrinology, Diabetes & Metabolism in San Francisco78 providers
Endocrinology, Diabetes & Metabolism in San Diego66 providers
Endocrinology, Diabetes & Metabolism in Sacramento41 providers
Endocrinology, Diabetes & Metabolism in Torrance34 providers
Endocrinology, Diabetes & Metabolism in Stanford31 providers
Endocrinology, Diabetes & Metabolism in Santa Monica22 providers
Endocrinology, Diabetes & Metabolism in Long Beach20 providers
Endocrinology, Diabetes & Metabolism in La Jolla20 providers
Endocrinology, Diabetes & Metabolism in Fresno20 providers
Endocrinology, Diabetes & Metabolism in Beverly Hills17 providers
Endocrinology, Diabetes & Metabolism in Newport Beach16 providers
Endocrinology, Diabetes & Metabolism in San Jose16 providers
Endocrinology, Diabetes & Metabolism in Mountain View15 providers
Endocrinology, Diabetes & Metabolism in Palo Alto15 providers
Endocrinology, Diabetes & Metabolism in Bakersfield13 providers
Endocrinology, Diabetes & Metabolism in Orange13 providers
Endocrinology, Diabetes & Metabolism in Roseville12 providers
Endocrinology, Diabetes & Metabolism in Walnut Creek12 providers
Endocrinology, Diabetes & Metabolism in Fullerton12 providers
Endocrinology, Diabetes & Metabolism in Santa Barbara12 providers
Endocrinology, Diabetes & Metabolism in Mission Viejo11 providers
Endocrinology, Diabetes & Metabolism in Duarte11 providers
Endocrinology, Diabetes & Metabolism in Irvine11 providers

Endocrinology, Diabetes & Metabolism 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. Brian Chavez, M.D.
Lake Forest, CA · $3,020 in drug and device payments (2025) · Telehealth · (949) 916-9100
Dr. Ku-juey Raymond Chang, M.D.
Lake Forest, CA · $34,987 in drug and device payments (2025) · (949) 916-9100
Dr. Sam Pourbabak, MD
Lake Forest, CA · $5,903 in drug and device payments (2025) · Telehealth · (949) 916-9100
Dr. Neelima Chu, M.D.
La Mesa, CA · No drug or device payments recorded (2025) · Telehealth · (619) 644-6815
Dr. Raymond Fink, M.D.
La Mesa, CA · No drug or device payments recorded (2025) · (619) 463-1293
Dr. Sandra Jassmann, MD
La Mesa, CA · No drug or device payments recorded (2025) · (619) 462-3360
Dr. Karunyan Arulanantham, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 942-2391
Dr. Hyunju Lee, M.D.
La Palma, CA · $1,504 in drug and device payments (2025) · Telehealth · (714) 422-0440
Dr. Jeffrey Mason, M.D.
La Verne, CA · No drug or device payments recorded (2025) · (909) 593-4079
Dr. Sadiq Mandilawi, MD
La Verne, CA · $477 in drug and device payments (2025) · (909) 596-4879
Dr. Frank Huang, MD
Lodi, CA · $2,213 in drug and device payments (2025) · Telehealth · (209) 334-8520
Dr. Eujean Park
Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth · (909) 558-4838
Dr. Hye Jeong Han
Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth · (909) 558-4000
Dr. Katherine Jacob, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 825-7084
Dr. Kevin Codorniz, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth · (909) 558-4909
Dr. Matheni Sathananthan, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth · (909) 558-4909
Dr. Olha Fomenko, MD
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 825-7084
Dr. Scott Lee, M.D.
Loma Linda, CA · $182 in drug and device payments (2025) · Telehealth · (909) 558-2870
Dr. Takahiro Otsuka, MD
Loma Linda, CA · $1,863 in drug and device payments (2025) · Telehealth · (909) 558-2870
Dr. Tania Arous, MD
Loma Linda, CA · $688 in drug and device payments (2025) · Telehealth · (909) 558-2838
Dr. Wyut Yi Thin, MBBS, MD
Loma Linda, CA · $84 in drug and device payments (2025) · (909) 558-2838
Dr. Irram Rao, M.D
Lomita, CA · $247 in drug and device payments (2025) · Telehealth · (310) 375-7666
Dr. Alex Kutas, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 634-9803
Dr. Constance Chen, MD
Long Beach, CA · $20 in drug and device payments (2025) · (562) 826-8000
Dr. Diana Echeverry-franck, MD
Long Beach, CA · $2,488 in drug and device payments (2025) · Telehealth · (562) 634-9802
Dr. Ellis Levin, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 826-5748
Dr. Jennifer Connelly, D.O.
Long Beach, CA · $76,503 in drug and device payments (2025) · Telehealth · (562) 988-0040
Dr. Joseph Molina, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (626) 346-2455
Dr. Kanchana Viswanathan, MD
Long Beach, CA · $5,490 in drug and device payments (2025) · Telehealth · (562) 595-4718
Dr. Kristen Nguyen, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 426-3333
Dr. Lauren Choi, M.D.
Long Beach, CA · $798 in drug and device payments (2025) · Telehealth · (562) 426-3333
Dr. Linda Wang, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 988-8787
Dr. Matthew Clarke, MD
Long Beach, CA · $223 in drug and device payments (2025) · Telehealth · (562) 595-4718
Dr. Mohsen Tabrizi, MD
Long Beach, CA · $1,078 in drug and device payments (2025) · (562) 634-9803
Dr. Nathaniel Shon, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 862-8000
Dr. Peter Linfoot, PH.D., M.D.
Long Beach, CA · $122 in drug and device payments (2025) · (562) 426-3333
Dr. Renuka Boyapalli, MD
Long Beach, CA · $487 in drug and device payments (2025) · Telehealth · (562) 426-3333
Dr. Richard Berkson, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 595-4718
Dr. Richard Horton, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 433-1374
Dr. Ricky Mac, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 595-4718
Dr. Steven Eng, M.D.
Long Beach, CA · $1,677 in drug and device payments (2025) · (562) 634-9803
Dr. Yasaman Mohtasebi, M.D.
Long Beach, CA · $5,831 in drug and device payments (2025) · Telehealth · (562) 595-4718
Dr. Craig Olsen, M.D.
Los Alamitos, CA · No drug or device payments recorded (2025) · (714) 252-1135
Dr. Hoon-ji Choi, MD
Los Alamitos, CA · $522 in drug and device payments (2025) · Telehealth · (562) 431-7877
Dr. Robert Alloo, MD
Los Altos, CA · No drug or device payments recorded (2025) · (650) 941-1306
Dr. Alyssa Dominguez, MD
Los Angeles, CA · $8,063 in drug and device payments (2025) · Telehealth · (323) 442-5100
Dr. Amanda Leiter
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-7922
Dr. Amir Azarnivar, MD
Los Angeles, CA · $29 in drug and device payments (2025) · (213) 745-6047
Dr. Anat Ben Shlomo, M.D.
Los Angeles, CA · $1,949 in drug and device payments (2025) · Telehealth · (310) 423-2830
Dr. Andre Vanherle, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-6301

Conditions Endocrinology, Diabetes & Metabolism providers in California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Endocrinology, Diabetes & Metabolism providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Endocrinology, Diabetes & Metabolism providers are in California?

There are 1,135 Endocrinology, Diabetes & Metabolism providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Endocrinology, Diabetes & Metabolism providers in California offer telehealth?

Yes. 586 of the 1,135 Endocrinology, Diabetes & Metabolism providers in California (about 52%) report offering telehealth services in CMS data.

Which cities in California have the most Endocrinology, Diabetes & Metabolism providers?

Los Angeles (107), San Francisco (78), San Diego (66) have the highest concentration of Endocrinology, Diabetes & Metabolism providers in California.

How many Endocrinology, Diabetes & Metabolism providers in California received drug or device company payments?

615 of 1,135 Endocrinology, Diabetes & Metabolism providers in California (54%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Endocrinology, Diabetes & Metabolism providers in California treat?

Endocrinology, Diabetes & Metabolism providers commonly treat type 2 diabetes, thyroid disorders, osteoporosis, hormone imbalance, type 1 diabetes 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 Endocrinologists in California work in independent practices or large health systems?

Among 765 Endocrinologists in California enrolled in Medicare, 18% bill through a solo or small practice with fewer than 10 clinicians, 8% through a mid-size group of 10 to 99, and 74% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Endocrinologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Endocrinologists hold privileges are Ronald Reagan UCLA Medical Center in Los Angeles; Stanford Health Care in Stanford; Santa Monica - UCLA Med Ctr & Orthopaedic Hospital in Santa Monica.

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 Endocrinology, Diabetes & Metabolism in California? Get featured.