Allergy Specialists in California
Data updated monthly · Last refresh October 2026
157 Allergy providers practice in California, including 39 (25%) 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.
157providers
39telehealth
Los Angelestop city
Allergy by city in California
Choose a city to see providers there.
Where Allergy Specialists in California practice
From CMS Medicare enrollment records covering 78 of the 157 providers listed here (50%). Providers who do not bill Medicare are not included in these figures.
51%solo or small practice (under 10 clinicians)
21%mid-size group (10 to 99)
28%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Allergy Specialists | All clinicians in group | Main city |
| Southern California Permanente Medical Group | 8 | 11,250 | Bakersfield |
| Sutter Bay Medical Foundation | 5 | 3,783 | Los Altos |
| Allergy and Asthma Medical Group of the Bay Area Inc. | 5 | 20 | Walnut Creek |
| Permanente Medical Group Inc. | 4 | 10,928 | Richmond |
| UCSF Health Medical Foundation | 3 | 40 | Redwood City |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Allergy Specialists affiliated |
| Sutter Medical Center, Sacramento | Sacramento | Nonprofit | 4 of 5 | 4 |
| Cedars-Sinai Medical Center | Los Angeles | Nonprofit | 5 of 5 | 3 |
| Marshall Medical Center | Placerville | Nonprofit | 4 of 5 | 2 |
| Community Regional Medical Center | Fresno | Nonprofit | 1 of 5 | 2 |
| Oroville Hospital | Oroville | Nonprofit | 1 of 5 | 2 |
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.
Allergy 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. Gillian Bassirpour, MDAliso Viejo, CA · $1,126 in drug and device payments (2025) ·
(949) 287-4900 Dr. Ann Mighell, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Chittur Easwaran, M.DAnaheim, CA · No drug or device payments recorded (2025) ·
(714) 527-6460 Dr. Richard Roth, MDAnaheim, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Amol Kamboj, M.D.Bakersfield, CA · No drug or device payments recorded (2025) ·
(661) 587-8110 Dr. Julia Bae, MDBakersfield, CA · No drug or device payments recorded (2025) ·
(800) 353-5400 Dr. Patrick Leung, M.D.Bakersfield, CA · No drug or device payments recorded (2025) ·
(661) 323-3081 Dr. Paula Ardron, MDBakersfield, CA · No drug or device payments recorded (2025) ·
(800) 353-5400 Dr. Medhat Ragab, MDBaldwin Park, CA · No drug or device payments recorded (2025) ·
(626) 851-1011 Dr. Souheil Habbal, MDBaldwin Park, CA · No drug or device payments recorded (2025) ·
(626) 851-1011 Dr. Margaret Kurohara, MDBellflower, CA · No drug or device payments recorded (2025) ·
(562) 461-3000 Dr. Mary Friedman, MDBellflower, CA · No drug or device payments recorded (2025) ·
(562) 461-3000 Dr. Sansan Wong, MDBellflower, CA · No drug or device payments recorded (2025) ·
(562) 461-3000 Dr. Michelle Yasharpour, MDBeverly Hills, CA · $6,951 in drug and device payments (2025) · Telehealth ·
(310) 285-6650 Dr. Sherwin Hariri, M.D.Beverly Hills, CA · $3,376 in drug and device payments (2025) · Telehealth ·
(310) 855-9909 Dr. Stuart Epstein, MDBeverly Hills, CA · $5,411 in drug and device payments (2025) ·
(310) 274-6853 Dr. Susan Cocke, MDBrea, CA · No drug or device payments recorded (2025) ·
(714) 579-6826 Dr. Valerie Jerdee, M.D.Brentwood, CA · $2,520 in drug and device payments (2025) · Telehealth ·
(925) 513-3140 Dr. Barbara Conner-andersen, M.D.Burlingame, CA · No drug or device payments recorded (2025) ·
(650) 692-1892 Dr. Eugene Choi, MDBurlingame, CA · No drug or device payments recorded (2025) ·
(650) 692-6543 Dr. Margaret Delano, M.D.Burlingame, CA · No drug or device payments recorded (2025) ·
(650) 692-1892 Dr. Ned Whitcomb, MDCarmichael, CA · No drug or device payments recorded (2025) ·
(916) 972-1888 Dr. Kenneth Lien, MDCastro Valley, CA · $2,085 in drug and device payments (2025) · Telehealth ·
(510) 537-0700 Dr. Anton Dotson, MDChico, CA · $1,500 in drug and device payments (2025) ·
(530) 896-2200 Dr. Norman Mccann, MDChico, CA · No drug or device payments recorded (2025) ·
(530) 891-4811 Dr. Mohammad Rahman, MDClovis, CA · No drug or device payments recorded (2025) ·
(314) 878-7988 Dr. Sahana Vishwanath, M.D.Clovis, CA · No drug or device payments recorded (2025) ·
(559) 472-9716 Dr. Howard Ort, MDCovina, CA · No drug or device payments recorded (2025) ·
(626) 331-6411 Dr. Betty Miller-kolotkin, M.D.Daly City, CA · No drug or device payments recorded (2025) ·
(650) 991-0405 Dr. Michael Chien, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Michelle Revier, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-5000 Dr. Pauline Tsai, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Bruce Friedman, MDFountain Valley, CA · $3,219 in drug and device payments (2025) ·
(714) 549-9330 Dr. Grace Yu, MDFremont, CA · $175 in drug and device payments (2025) ·
(510) 490-1222 Dr. Rao Kosaraju, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 373-3000 Dr. Angela Sabry, MDFresno, CA · $21,328 in drug and device payments (2025) ·
(559) 494-4446 Dr. Howard Pettigrew, MD, PHDFresno, CA · $1,223 in drug and device payments (2025) ·
(559) 436-4500 Dr. Javaid Khan, D.O.Fresno, CA · No drug or device payments recorded (2025) · Telehealth ·
(559) 436-4500 Dr. Jeanett Segal, MDFresno, CA · No drug or device payments recorded (2025) ·
(714) 633-4666 Dr. Kellie Lim, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 436-4500 Dr. Malik Baz, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 436-4500 Dr. Merlyn Price, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 436-4500 Dr. Praveen Buddiga, M.D. Dr. Troy Scribner, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 299-2950 Dr. Roger Nguyen, M.DGarden Grove, CA · $3,775 in drug and device payments (2025) ·
(714) 638-4433 Dr. Marine Demirjian, M.D.Glendale, CA · $850 in drug and device payments (2025) · Telehealth ·
(818) 558-5828 Dr. Peter Parker, M.D.Glendale, CA · $1,358 in drug and device payments (2025) ·
(818) 546-2626 Dr. John Phillipp, MDGlendora, CA · No drug or device payments recorded (2025) ·
(626) 914-5803 Common questions
How many Allergy providers are in California?There are 157 Allergy providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Allergy providers in California offer telehealth?Yes. 39 of the 157 Allergy providers in California (about 25%) report offering telehealth services in CMS data.
Which cities in California have the most Allergy providers?Los Angeles (13), San Diego (11), Fresno (10) have the highest concentration of Allergy providers in California.
How many Allergy providers in California received drug or device company payments?72 of 157 Allergy providers in California (46%) 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.
Do most Allergy Specialists in California work in independent practices or large health systems?Among 78 Allergy Specialists in California enrolled in Medicare, 51% bill through a solo or small practice with fewer than 10 clinicians, 21% through a mid-size group of 10 to 99, and 28% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Allergy Specialists in California work at?According to CMS facility affiliation records, the California hospitals where the most Allergy Specialists hold privileges are Sutter Medical Center, Sacramento in Sacramento; Cedars-Sinai Medical Center in Los Angeles; Marshall Medical Center in Placerville.
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