101 NPI-registered Allergy & Immunology (Internal Medicine) Physician providers practice in California. Switch states in the rail, or open the full search to filter by city and credential.
| Provider | Specialty | Location | NPI |
|---|---|---|---|
| Ahdad Ziyar, M.D., Inc. | Allergy & Immunology (Internal Medicine) Physician | Santa Ana, CA | 1124726989 |
| Allab Medical Clinic | Allergy & Immunology (Internal Medicine) Physician | Rch Cucamonga, CA | 1669210902 |
| Allergy and Asthma Consultants PC |
| Allergy & Immunology (Internal Medicine) Physician |
| Redwood City, CA |
| 1346770567 |
| Allergy Medical Group, Inc. | Allergy & Immunology (Internal Medicine) Physician | Newport Beach, CA | 1720289788 |
| Amie SchweisMD | Allergy & Immunology (Internal Medicine) Physician | Redondo Beach, CA | 1124481809 |
| Aminaa Siddiqi | Allergy & Immunology (Internal Medicine) Physician | Davis, CA | 1619363314 |
| Amit PatelMD | Allergy & Immunology (Internal Medicine) Physician | Upland, CA | 1396734547 |
| Andre NelMD | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1023037702 |
| Andrew EnglerMD | Allergy & Immunology (Internal Medicine) Physician | San Mateo, CA | 1366400384 |
| Andrew SaxonMD | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1174543318 |
| Andrew WongM.D. | Allergy & Immunology (Internal Medicine) Physician | Manhattan Beach, CA | 1083983845 |
| Anna ArroyoMD | Allergy & Immunology (Internal Medicine) Physician | Stanford, CA | 1205102472 |
| Anna Cherian | Allergy & Immunology (Internal Medicine) Physician | Sacramento, CA | 1215672738 |
| Anna Lang | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1235556432 |
| Belle PeralejoM.D. | Allergy & Immunology (Internal Medicine) Physician | Fresno, CA | 1104031327 |
| Brian LipsonM.D. | Allergy & Immunology (Internal Medicine) Physician | Rewood City, CA | 1821179391 |
| Bruce NelsonM.D. | Allergy & Immunology (Internal Medicine) Physician | Mission Viejo, CA | 1649269614 |
| Bruce RyhalMD | Allergy & Immunology (Internal Medicine) Physician | Roseville, CA | 1902812795 |
| Carlos MezaM.D. | Allergy & Immunology (Internal Medicine) Physician | Stockton, CA | 1730104761 |
| Chongwei Cui | Allergy & Immunology (Internal Medicine) Physician | Thousand Oaks, CA | 1922369008 |
| Christelle MiotMD | Allergy & Immunology (Internal Medicine) Physician | Loma Linda, CA | 1487150736 |
| Christine Licata | Allergy & Immunology (Internal Medicine) Physician | Sacramento, CA | 1437619533 |
| Christopher FosterMD | Allergy & Immunology (Internal Medicine) Physician | San Diego, CA | 1588710644 |
| Clara ToroM.D. | Allergy & Immunology (Internal Medicine) Physician | Chula Vista, CA | 1962438192 |
| Clayton FeldmanM.D. | Allergy & Immunology (Internal Medicine) Physician | San Jose, CA | 1548370521 |
| Cynthia RamirezRN | Allergy & Immunology (Internal Medicine) Physician | Oakland, CA | 1134723174 |
| Dat Manh Nguyen M D a Professional Corporation | Allergy & Immunology (Internal Medicine) Physician | Westminster, CA | 1548272917 |
| Dha Pathallergy and Medical Services | Allergy & Immunology (Internal Medicine) Physician | Santa Monica, CA | 1295696896 |
| Digestive Health Associates of Southern California | Allergy & Immunology (Internal Medicine) Physician | Santa Monica, CA | 1972470730 |
| Edward HuM.D. | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1700045150 |
| Fatima AliMD | Allergy & Immunology (Internal Medicine) Physician | Sacramento, CA | 1093045023 |
| Fitness360 | Allergy & Immunology (Internal Medicine) Physician | Camarillo, CA | 1205630852 |
| Frederick Guilford | Allergy & Immunology (Internal Medicine) Physician | Los Altos, CA | 1548345770 |
| Gang ChengMD | Allergy & Immunology (Internal Medicine) Physician | Modesto, CA | 1609038355 |
| Geoffrey CarlsonMD | Allergy & Immunology (Internal Medicine) Physician | Travis Afb, CA | 1174865588 |
| Howard StromMD | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1407153000 |
| Imran JunaidM.D. | Allergy & Immunology (Internal Medicine) Physician | Concord, CA | 1285801787 |
| Iris OtaniM.D. | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1285925990 |
| Jay KeystoneM.D. | Allergy & Immunology (Internal Medicine) Physician | Vacaville, CA | 1306115001 |
| Jenika Ferretti-GallonMD | Allergy & Immunology (Internal Medicine) Physician | Sacramento, CA | 1740713734 |
| Jeremy KaslowM.D. | Allergy & Immunology (Internal Medicine) Physician | Santa Ana, CA | 1144305574 |
| Jesus TorpocoMD | Allergy & Immunology (Internal Medicine) Physician | Reseda, CA | 1386744357 |
| Joseph NguyenMD | Allergy & Immunology (Internal Medicine) Physician | Orange, CA | 1225217425 |
| Joyce LeeM.D. | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1114243136 |
| Katie Marks Cogan MD Inc a California Professional Medical Corporation | Allergy & Immunology (Internal Medicine) Physician | Culver City, CA | 1457094799 |
| Kavitha Thiagarajan | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1528695707 |
| Kenneth QuintoM.D. | Allergy & Immunology (Internal Medicine) Physician | La Jolla, CA | 1104073782 |
| Kevin TseM.D. | Allergy & Immunology (Internal Medicine) Physician | La Jolla, CA | 1558528976 |
| Kianoush Shakib MD Inc | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1205309341 |
| King Medical Corporation | Allergy & Immunology (Internal Medicine) Physician | Sherman Oaks, CA | 1558387290 |
| Lawrence AwaiM.D. | Allergy & Immunology (Internal Medicine) Physician | Clovis, CA | 1629510235 |
| Linda EngelstadMD | Allergy & Immunology (Internal Medicine) Physician | Oakland, CA | 1710997374 |
| Linda ZhuMD | Allergy & Immunology (Internal Medicine) Physician | Stanford, CA | 1063839264 |
| Liza G. Presser Belkin M.D. Inc | Allergy & Immunology (Internal Medicine) Physician | Santa Barbara, CA | 1457503617 |
| Liza Presser BelkinM.D. | Allergy & Immunology (Internal Medicine) Physician | Santa Barbara, CA | 1982709036 |
| Lulu Tsao | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1780047779 |
| Lynn E. Spitler, MD, a Medical Corporation | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1205964285 |
| Lynn SpitlerMD | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1588867535 |
| Meng ChenMD | Allergy & Immunology (Internal Medicine) Physician | Stanford, CA | 1497190714 |
| Michael MainMD | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1649833005 |
| Michael T Mosher M.D a Medical Corporation | Allergy & Immunology (Internal Medicine) Physician | Thousand Oaks, CA | 1588792048 |
| Michele PhamM.D. | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1194169300 |
| Monica Tsai | Allergy & Immunology (Internal Medicine) Physician | Orange, CA | 1598176497 |
| Nicholas ScanlonM.D. | Allergy & Immunology (Internal Medicine) Physician | San Diego, CA | 1477084606 |
| Nisha PatelMD | Allergy & Immunology (Internal Medicine) Physician | San Mateo, CA | 1336392547 |
| Osman NumairMD | Allergy & Immunology (Internal Medicine) Physician | Salinas, CA | 1073900106 |
| Premium Allergy | Allergy & Immunology (Internal Medicine) Physician | Fresno, CA | 1497511208 |
| Purvi MehraM.D. | Allergy & Immunology (Internal Medicine) Physician | San Diego, CA | 1336280031 |
| Raffi Tchekmedyian | Allergy & Immunology (Internal Medicine) Physician | Torrance, CA | 1659831287 |
| Rakesh Jindal M.D. Inc | Allergy & Immunology (Internal Medicine) Physician | Porterville, CA | 1598893794 |
| Ravdeep KaurM.D. | Allergy & Immunology (Internal Medicine) Physician | Napa, CA | 1134567092 |
| Ray WilliamsM.D. | Allergy & Immunology (Internal Medicine) Physician | Inglewood, CA | 1144245838 |
| Rebecca ChinthrajahM.D. | Allergy & Immunology (Internal Medicine) Physician | Palo Alto, CA | 1225235120 |
| Ricardo Antonio Tan MD Inc. | Allergy & Immunology (Internal Medicine) Physician | Sherman Oaks, CA | 1881082683 |
| Robert F Meth MD a Medical Corporation | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1982763116 |
| Robert MethMD | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1053387837 |
| Roger WangD.O. | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1164522165 |
| Rose Monahan | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1518461268 |
| Rosemary HallettM.D. | Allergy & Immunology (Internal Medicine) Physician | Davis, CA | 1376527804 |
| Ryan ShilianDO | Allergy & Immunology (Internal Medicine) Physician | Encino, CA | 1598144032 |
| Sam AhnM.D. | Allergy & Immunology (Internal Medicine) Physician | Napa, CA | 1558423814 |
| Sheila Bonilla-TandocMD, MS | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1457387805 |
| Shields AbernathyM.D. | Allergy & Immunology (Internal Medicine) Physician | Templeton, CA | 1508886235 |
| Sowmya ArjaM.D. | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1215390166 |
| Stanford Hospital and Clinics | Allergy & Immunology (Internal Medicine) Physician | Stanford, CA | 1134179575 |
| Stephen NagyMD | Allergy & Immunology (Internal Medicine) Physician | Sacramento, CA | 1013929967 |
| Suzanne CasselMD | Allergy & Immunology (Internal Medicine) Physician | West Hollywood, CA | 1316164015 |
| Suzanne TeuberM.D. | Allergy & Immunology (Internal Medicine) Physician | Davis, CA | 1619950516 |
| Tejal Narsai | Allergy & Immunology (Internal Medicine) Physician | Long Beach, CA | 1326402330 |
| The Cool Off Wellness Inc | Allergy & Immunology (Internal Medicine) Physician | Cypress, CA | 1548124795 |
| Trisha SharmaM.D. | Allergy & Immunology (Internal Medicine) Physician | Irvine, CA | 1811315781 |
| Tyler BasenM.D. | Allergy & Immunology (Internal Medicine) Physician | Mission Viejo, CA | 1184069692 |
| Tyler Basen MD Inc | Allergy & Immunology (Internal Medicine) Physician | Mission Viejo, CA | 1598374456 |
| Uc Regents | Allergy & Immunology (Internal Medicine) Physician | Orange, CA | 1003864174 |
| Vincent Tubiolo MD Inc | Allergy & Immunology (Internal Medicine) Physician | Santa Barbara, CA | 1265920045 |
| Von NguyenMD | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1174815815 |
| Warner GreeneM.D., PH.D. | Allergy & Immunology (Internal Medicine) Physician | San Francisco, CA | 1528403797 |
| William KlaustermeyerMD | Allergy & Immunology (Internal Medicine) Physician | Los Angeles, CA | 1265451165 |
| Xinyu WangMD, PHD | Allergy & Immunology (Internal Medicine) Physician | San Diego, CA | 1720548001 |
| Yu WongMD | Allergy & Immunology (Internal Medicine) Physician | Palo Alto, CA | 1043486863 |
Source: CMS NPPES Data Dissemination (June 2026). Specialty taxonomy: NUCC.
