HealthcareDiscovery.AI / Doctors / California / Allergy & Immunology (Internal Medicine)

Allergy & Immunology (Internal Medicine) in California

Data updated monthly · Last refresh August 2026

81 Allergy & Immunology (Internal Medicine) providers practice in California, including 30 (37%) offering telehealth. The largest concentration is in San Francisco. Profiles include Medicare quality scores where available.

81providers
30telehealth
San Franciscotop city

Allergy & Immunology (Internal Medicine) providers by city in California

San Francisco12 providers
Los Angeles8 providers
Sacramento5 providers
San Diego4 providers
Davis3 providers
San Mateo3 providers
Stanford3 providers
Palo Alto2 providers

Highest rated Allergy & Immunology (Internal Medicine) providers in California

Dr. Sowmya Arja, M.D.
San Francisco, CA · Quality score 100/100 · (415) 362-2614
Dr. Anna Lang
San Francisco, CA · Quality score 93/100 · Telehealth · (415) 353-2961
Dr. Roger Wang, D.O.
San Francisco, CA · Quality score 93/100 · Telehealth · (415) 677-0901
Dr. Amit Patel, MD
Upland, CA · Quality score 91/100 · (909) 931-4034
Dr. Suzanne Cassel, MD
West Hollywood, CA · Quality score 88/100 · Telehealth · (310) 423-8784
Dr. Monica Tsai
Orange, CA · Quality score 86/100 · Telehealth · (714) 456-8888
Dr. Christelle Miot, MD
Loma Linda, CA · Quality score 85/100 · Telehealth · (909) 558-2395
Dr. Liza Presser Belkin, M.D.
Santa Barbara, CA · Quality score 85/100 · Telehealth · (805) 569-3377
Dr. Sam Ahn, M.D.
Napa, CA · Quality score 82/100 · Telehealth · (707) 258-8100
Dr. Andrew Engler, MD
San Mateo, CA · Quality score 79/100 · Telehealth · (650) 343-4597
Dr. Rebecca Chinthrajah, M.D.
Palo Alto, CA · Quality score 77/100 · Telehealth · (650) 723-4000
Dr. Meng Chen, MD
Stanford, CA · Quality score 77/100 · Telehealth · (650) 723-4000
Dr. Anna Arroyo, MD
Stanford, CA · Quality score 77/100 · Telehealth · (650) 723-4000
Dr. Linda Zhu, MD
Stanford, CA · Quality score 77/100 · Telehealth · (650) 723-4000
Dr. Michele Pham, M.D.
San Francisco, CA · Quality score 75/100 · Telehealth · (415) 353-2725
Dr. Iris Otani, M.D.
San Francisco, CA · Quality score 75/100 · Telehealth · (415) 353-2961
Dr. Lulu Tsao
San Francisco, CA · Quality score 75/100 · Telehealth · (415) 353-2725
Dr. Rose Monahan
San Francisco, CA · Quality score 75/100 · Telehealth · (415) 353-2725
Dr. Andrew Saxon, MD
Los Angeles, CA · (310) 794-9718
Dr. William Klaustermeyer, MD
Los Angeles, CA · (310) 794-9718

Common questions

How many Allergy & Immunology (Internal Medicine) providers are in California?

There are 81 Allergy & Immunology (Internal Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Allergy & Immunology (Internal Medicine) providers in California offer telehealth?

Yes. 30 of the 81 Allergy & Immunology (Internal Medicine) providers in California (about 37%) report offering telehealth services in CMS data.

Which cities in California have the most Allergy & Immunology (Internal Medicine) providers?

San Francisco (12), Los Angeles (8), Sacramento (5) have the highest concentration of Allergy & Immunology (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, including MIPS quality scores where available. The directory refreshes monthly.

Related reading on HealthcareDiscovery.AI

Search all 81 in the directory Ask Zach for help choosing

Related

Sources: NPPES (CMS), Doctors and Clinicians national files, MIPS. Updated monthly. This directory is informational and not medical advice. Are you a Allergy & Immunology (Internal Medicine) in California? Get featured.