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Registered Dietitians in California

Data updated monthly · Last refresh October 2026

7,184 Registered Dietitian providers practice in California, including 183 (3%) 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.

7,184providers
183telehealth
San Diegotop city

Registered Dietitian by city in California

Choose a city to see providers there.

Registered Dietitian in San Diego505 providers
Registered Dietitian in Los Angeles487 providers
Registered Dietitian in San Francisco429 providers
Registered Dietitian in Sacramento231 providers
Registered Dietitian in San Jose151 providers
Registered Dietitian in Oakland130 providers
Registered Dietitian in Palo Alto119 providers
Registered Dietitian in Fresno107 providers
Registered Dietitian in Long Beach100 providers
Registered Dietitian in Riverside92 providers
Registered Dietitian in Irvine80 providers
Registered Dietitian in Santa Monica70 providers
Registered Dietitian in Santa Rosa63 providers
Registered Dietitian in Bakersfield62 providers
Registered Dietitian in Newport Beach61 providers
Registered Dietitian in Torrance61 providers
Registered Dietitian in Fremont53 providers
Registered Dietitian in Loma Linda51 providers
Registered Dietitian in Roseville50 providers
Registered Dietitian in Stockton49 providers
Registered Dietitian in Walnut Creek48 providers
Registered Dietitian in Santa Clara47 providers
Registered Dietitian in La Jolla46 providers
Registered Dietitian in Santa Barbara46 providers

Registered Dietitian 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. Marcus Lai, R.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 218-2778
Dr. Margaret Mundall, RD
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. Maria Gutierrez, R.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 552-3870
Dr. Maria Kwok, R. D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-3863
Dr. Mariana Carranza Mendez, RDN
San Francisco, CA · No drug or device payments recorded (2025) · (858) 349-4209
Dr. Marianna Mele
San Francisco, CA · No drug or device payments recorded (2025) · (306) 617-4355
Dr. Marianne Schroeder, RD
San Francisco, CA · No drug or device payments recorded (2025) · (650) 224-7370
Dr. Maria Sanabria Veaz, RD
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. Marilyn Benito, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810
Dr. Marisa Ottoman, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Maritza Ng Du
San Francisco, CA · No drug or device payments recorded (2025) · (415) 391-9686
Dr. Mark Pacelli, RD
San Francisco, CA · No drug or device payments recorded (2025) · (650) 270-3913
Dr. Mary Ann Langvardt, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 759-3097
Dr. Maryann Smitt
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810
Dr. Mary Deirdre Martin, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-6388
Dr. Mary Ellen Dipaola, RD, CDE, IBCLC
San Francisco, CA · No drug or device payments recorded (2025) · (415) 441-5785
Dr. Mary Liang Feng, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 552-1013
Dr. Mary Mccullough, RD, LD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 800-2311
Dr. Mary Wang, MS, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 677-2305
Dr. Maura Rodgers, RD
San Francisco, CA · No drug or device payments recorded (2025) · (603) 440-3255
Dr. Maya Ezekiel, RDN
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-8488
Dr. Megan Cooper, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Melissa Richardson, RDN, LD
San Francisco, CA · No drug or device payments recorded (2025) · (451) 800-2311
Dr. Melissa Simpson, RD
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. Melissa Welch
San Francisco, CA · No drug or device payments recorded (2025) · (949) 683-1353
Dr. Melody O'donnell, R.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2788
Dr. Michelle Clinton, RDN
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. Michelle Guan, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Michelle Kuppich, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 551-9758
Dr. Michelle Milgrim, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 800-2311
Dr. Michelle Tucker, RDN
San Francisco, CA · No drug or device payments recorded (2025) · (415) 800-2311
Dr. Mina Ghaninejadesfahani, MS,RD
San Francisco, CA · No drug or device payments recorded (2025) · (760) 954-7470
Dr. Mira Flor Aquino, DIETITIAN
San Francisco, CA · No drug or device payments recorded (2025) · (415) 861-4233
Dr. Misa Lee
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-3269
Dr. Molly Doyle, RD, CNSC
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-8244
Dr. Molly Gorgol, RD
San Francisco, CA · No drug or device payments recorded (2025) · (317) 498-2324
Dr. Nancy Matthiessen, MAS, RD, CSP
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1342
Dr. Nancy Wong, MS, RD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 517-2280
Dr. Natalie Ledesma
San Francisco, CA · No drug or device payments recorded (2025) · (415) 682-0843
Dr. Neaziah Caba, RD
San Francisco, CA · No drug or device payments recorded (2025) · (844) 741-1888
Dr. Neha Shah, MPH, RD, CNSC, CHES
San Francisco, CA · No drug or device payments recorded (2025) · (415) 275-4549
Dr. Nicole Britvan, R.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-3073
Dr. Nicole Klawitter, RD
San Francisco, CA · No drug or device payments recorded (2025) · (714) 724-8639
Dr. Nicole Marchese
San Francisco, CA · No drug or device payments recorded (2025) · (212) 598-2700
Dr. Niessa Tran
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. Nikki Sahebghalam, RDN, CNS
San Francisco, CA · No drug or device payments recorded (2025) · (415) 651-4333
Dr. Noell Martin
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. Oliver Gonzalez-yoakum
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 600-1151
Dr. Olutomisin Akanbi, RD
San Francisco, CA · No drug or device payments recorded (2025) · (212) 589-2700
Dr. On Na Lee, MAS., RD.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 999-8160

Common questions

How many Registered Dietitian providers are in California?

There are 7,184 Registered Dietitian providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Registered Dietitian providers in California offer telehealth?

Yes. 183 of the 7,184 Registered Dietitian providers in California (about 3%) report offering telehealth services in CMS data.

Which cities in California have the most Registered Dietitian providers?

San Diego (505), Los Angeles (487), San Francisco (429) have the highest concentration of Registered Dietitian providers in California.

How many Registered Dietitian providers in California received drug or device company payments?

1 of 7,184 Registered Dietitian providers in California (0%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

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.

Which hospitals do Registered Dietitians in California work at?

According to CMS facility affiliation records, the California hospitals where the most Registered Dietitians hold privileges are UC San Diego Health Hillcrest - Hillcrest Med Ctr in San Diego; Ronald Reagan UCLA Medical Center in Los Angeles.

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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 Registered Dietitian in California? Get featured.