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Allergists in California

Data updated monthly · Last refresh October 2026

447 Allergy & Immunology providers practice in California, including 144 (32%) 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.

447providers
144telehealth
San Diegotop city

Allergy & Immunology by city in California

Choose a city to see providers there.

Allergy & Immunology in San Diego48 providers
Allergy & Immunology in Los Angeles36 providers
Allergy & Immunology in San Francisco15 providers
Allergy & Immunology in Walnut Creek14 providers
Allergy & Immunology in Santa Monica13 providers
Allergy & Immunology in San Jose13 providers
Allergy & Immunology in Palo Alto13 providers
Allergy & Immunology in Sacramento11 providers
Allergy & Immunology in Orange10 providers
Allergy & Immunology in Torrance9 providers
Allergy & Immunology in Stanford9 providers
Allergy & Immunology in Irvine8 providers
Allergy & Immunology in Roseville8 providers
Allergy & Immunology in Long Beach8 providers
Allergy & Immunology in Fresno7 providers
Allergy & Immunology in La Jolla7 providers
Allergy & Immunology in Santa Barbara7 providers
Allergy & Immunology in Menlo Park6 providers
Allergy & Immunology in Santa Rosa6 providers
Allergy & Immunology in Rancho Mirage5 providers
Allergy & Immunology in San Luis Obispo5 providers
Allergy & Immunology in Newport Beach5 providers
Allergy & Immunology in Mountain View5 providers
Allergy & Immunology in Riverside5 providers

Allergy & Immunology 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. Neil Parikh, M.D.
Sacramento, CA · $22,601 in drug and device payments (2025) · Telehealth · (916) 733-3303
Dr. Stamatiki Coss, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 973-5000
Dr. Teresa Neeno, MD
Sacramento, CA · $3,341 in drug and device payments (2025) · Telehealth · (916) 453-8696
Dr. Vinay Goswamy, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-8046
Dr. Susheela Balasubramaniam, MD
San Bernardino, CA · $27 in drug and device payments (2025) · (909) 886-4555
Dr. Rajashri Iyengar, M.D.
San Carlos, CA · $2,361 in drug and device payments (2025) · Telehealth · (650) 596-4150
Dr. Ruby Moreno
San Carlos, CA · $68 in drug and device payments (2025) · (844) 928-1872
Dr. Alexander Greiner, M.D.
San Diego, CA · $545 in drug and device payments (2025) · Telehealth · (858) 292-1144
Dr. Andrew White, M.D.
San Diego, CA · $147,061 in drug and device payments (2025) · Telehealth · (858) 764-9010
Dr. Anthony Horner, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 966-5961
Dr. Ashika Odhav, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 499-2707
Dr. Bob Geng, M.D.
San Diego, CA · $760,491 in drug and device payments (2025) · (858) 292-1144
Dr. Brian Stone, M. D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 286-6687
Dr. Bruce Prenner, MD
San Diego, CA · $378 in drug and device payments (2025) · (619) 286-6687
Dr. Bruce Zuraw, MD
San Diego, CA · $15,075 in drug and device payments (2025) · Telehealth · (858) 657-8322
Dr. Bryn Salt, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 621-4010
Dr. Cathleen Collins, M.D.
San Diego, CA · $237 in drug and device payments (2025) · (858) 966-5961
Dr. Christine James, M.D.
San Diego, CA · $132 in drug and device payments (2025) · Telehealth · (800) 926-8273
Dr. Eric Jones, MD
San Diego, CA · No drug or device payments recorded (2025) · (833) 574-2273
Dr. Ethan Canty, MD
San Diego, CA · $2,107 in drug and device payments (2025) · (858) 966-4900
Dr. Hannah Wangberg
San Diego, CA · $2,840 in drug and device payments (2025) · Telehealth · (619) 471-0434
Dr. Harold Hoffman, M.D.
San Diego, CA · $16,532 in drug and device payments (2025) · (858) 966-5961
Dr. Ha Shin, MD
San Diego, CA · $2,209 in drug and device payments (2025) · Telehealth · (858) 458-0940
Dr. Jennifer Namazy, M.D.
San Diego, CA · $1,924 in drug and device payments (2025) · Telehealth · (619) 245-2900
Dr. Jennifer Pendleton, MD
San Diego, CA · $2,973 in drug and device payments (2025) · Telehealth · (619) 286-6687
Dr. John Bastian, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 966-5961
Dr. John Kelso, M.D.
San Diego, CA · $912 in drug and device payments (2025) · Telehealth · (858) 764-9010
Dr. John Pauls, M.D
San Diego, CA · No drug or device payments recorded (2025) · (619) 446-1560
Dr. Jonathan Lyons, M.D
San Diego, CA · $6,581 in drug and device payments (2025) · Telehealth · (800) 926-8273
Dr. Karin Peterson, MD, PHD
San Diego, CA · $294 in drug and device payments (2025) · (858) 966-5961
Dr. Katharine Woessner, M.D.
San Diego, CA · $59,014 in drug and device payments (2025) · Telehealth · (858) 764-9010
Dr. Kathleen Luskin, MD
San Diego, CA · $285 in drug and device payments (2025) · (858) 764-9010
Dr. Kevin Cook, M.D.
San Diego, CA · $2,345 in drug and device payments (2025) · Telehealth · (858) 764-9010
Dr. Kusum Sharma, M.D.
San Diego, CA · $319 in drug and device payments (2025) · (858) 412-7362
Dr. Lori Broderick, M.D., PH.D.
San Diego, CA · $1,169 in drug and device payments (2025) · (858) 966-5961
Dr. Marc Riedl, MD
San Diego, CA · $100,410 in drug and device payments (2025) · Telehealth · (858) 657-5350
Dr. Marjorie Slankard, M.D.
San Diego, CA · $125 in drug and device payments (2025) · (858) 966-5961
Dr. Mark Tucker, M.D.
San Diego, CA · $204 in drug and device payments (2025) · Telehealth · (858) 605-7169
Dr. Martin Caha, MD
San Diego, CA · $2,427 in drug and device payments (2025) · (858) 292-1144
Dr. Mercedes Amado, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 966-5961
Dr. Michael Welch, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 292-1144
Dr. Nancy Ostrom, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 292-1144
Dr. Patricia Keefe
San Diego, CA · No drug or device payments recorded (2025) · (619) 286-6687
Dr. Rachel Lee, MD
San Diego, CA · No drug or device payments recorded (2025) · Telehealth · (800) 926-8273
Dr. Rhonda Alkatib, M.D.
San Diego, CA · $3,585 in drug and device payments (2025) · (619) 286-6687
Dr. Richard O'connor, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 446-1560
Dr. Ronald Simon, M.D.
San Diego, CA · $1,129 in drug and device payments (2025) · Telehealth · (858) 764-9010
Dr. Seema Aceves, M.D., PH.D.
San Diego, CA · $2,131 in drug and device payments (2025) · (858) 966-5961
Dr. Shaan Somani, MD
San Diego, CA · $1,053 in drug and device payments (2025) · (858) 764-3000
Dr. Stephanie Measures, MD
San Diego, CA · $55 in drug and device payments (2025) · (858) 966-5961

Conditions Allergy & Immunology providers in California commonly treat

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

Common questions

How many Allergy & Immunology providers are in California?

There are 447 Allergy & Immunology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Allergy & Immunology providers in California offer telehealth?

Yes. 144 of the 447 Allergy & Immunology providers in California (about 32%) report offering telehealth services in CMS data.

Which cities in California have the most Allergy & Immunology providers?

San Diego (48), Los Angeles (36), San Francisco (15) have the highest concentration of Allergy & Immunology providers in California.

How many Allergy & Immunology providers in California received drug or device company payments?

265 of 447 Allergy & Immunology providers in California (59%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Allergy & Immunology providers in California treat?

Allergy & Immunology providers commonly treat seasonal allergies, food allergies, asthma, eczema, chronic hives 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 Allergists in California work in independent practices or large health systems?

Among 276 Allergists in California enrolled in Medicare, 29% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 54% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Allergists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Allergists hold privileges are Stanford Health Care in Stanford; Santa Monica - UCLA Med Ctr & Orthopaedic Hospital in Santa Monica; Hoag Memorial Hospital Presbyterian in Newport Beach.

Allergy & Immunology in all 50 states Search all 447 in the directory Ask Zach for help choosing

Related

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 Allergy & Immunology in California? Get featured.