California · Internal Medicine

Internal Medicine in California.

21,780 verified Internal Medicine providers practise in California according to the National Plan and Provider Enumeration System (NPPES). Browse by city below, or click any provider to view their full NPI record including taxonomy, address, and contact details.

207R00000X21,780 in California200 citiesRefreshed monthly

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Los Angeles1,747 San Francisco1,435 San Diego1,065 Sacramento640 San Jose487 Oakland451 Fresno413 Stanford355 Long Beach292 Bakersfield274 Torrance273 Riverside235 Beverly Hills234 Anaheim231 Orange214 Loma Linda214 Walnut Creek204 Irvine202 Pasadena197 Santa Monica195 Palo Alto195 Roseville189 West Hollywood183 La Jolla175 Santa Barbara168 Glendale167 Modesto159 Santa Clara146 Fremont144 Newport Beach134 Mountain View132 Downey129 Santa Rosa123 Panorama City118 Fontana116 Woodland Hills114 Stockton112 Fountain Valley109 Chula Vista106 Burbank104 Sylmar103 Arcadia101 Berkeley100 Mission Hills95 Redwood City94 La Mesa88 Laguna Hills85 Moreno Valley82 Thousand Oaks82 Corona82 Palm Springs81 Rancho Mirage80 Encinitas80 San Bernardino80 Ventura78 Lancaster78 Encino77 Bellflower75 Redlands75 San Leandro75 Westminster75 Van Nuys75 Vallejo73 Tarzana73 Mission Viejo71 Visalia69 Colton69 Pleasanton69 Daly City68 Los Gatos68 Temecula67 Antioch67 Huntington Beach66 Hemet66 Garden Grove66 Alhambra65 Harbor City64 Santa Ana63 Burlingame63 Napa63 South San Francisco63 Folsom62 Fairfield62 Pomona61 Escondido60 Northridge59 Victorville59 Baldwin Park58 Valencia57 Salinas57 San Rafael57 Redding57 Fullerton56 Murrieta55 San Luis Obispo54 Vista54 Monterey Park54 San Mateo54 Vacaville53 Apple Valley53 Menlo Park51 Whittier51 Oxnard51 Sunnyvale50 Hayward50 Martinez48 Union City48 Los Alamitos47 French Camp46 Inglewood46 Sherman Oaks46 Tustin44 Santa Cruz43 Chico42 San Ramon41 Clovis41 Carmichael41 West Covina41 El Cajon41 Alameda41 Milpitas41 Covina40 San Gabriel40 Elk Grove40 Oceanside40 Concord39 Lakewood39 Santa Maria38 Rancho Cucamonga38 Camarillo37 Montebello37 Monterey37 Costa Mesa36 West Hills36 Porterville36 Redondo Beach36 Cerritos35 North Hollywood35 Poway35 Davis34 Palmdale34 Upland34 Tracy34 Simi Valley34 Lodi33 Novato33 Richmond32 Los Altos32 Chino32 Greenbrae32 Danville31 Turlock30 Castro Valley30 El Monte30 Culver City29 Auburn29 Livermore29 Grass Valley28 Emeryville28 Campbell28 National City28 Yuba City27 Palm Desert27 Marina Del Rey27 San Clemente26 Orinda26 Sonora26 Manteca26 Hawthorne26 El Centro26 Gardena25 Mather25 Travis Afb25 Reseda24 Norwalk24 Petaluma24 Huntington Park24 Hanford24 San Marcos23 Sun City23 Templeton23 Dublin23 Buena Park22 Westlake Village22 Canoga Park22 Rancho Cordova22 Madera21 Oroville21 Rosemead21 San Pedro21 Santa Clarita21 Merced20 Yorba Linda20 Saint Helena20 Carlsbad20 Calabasas19 Glendora19 Gilroy19 Healdsburg19 Ridgecrest18

A representative sample · not the full listFeatured providers

18 of 21,780

Liz Diaz-Querol MD

Internal Medicine·Oxnard, CA·1184962565

Active›

Amitasha Mann M.D.

Internal Medicine·Clovis, CA·1619215837

Active›

Mary Unanue M.D.

Internal Medicine·Beverly Hills, CA·1295073468

Active›

Lavanya Bobba MD

Internal Medicine·Fresno, CA·1710225891

Active›

Dr. Christina Tadrous M.D.

Internal Medicine·Los Angeles, CA·1780922468

Active›

Arturo Santiago Vazquez M.D.

Internal Medicine·Colton, CA·1174861876

Active›

Dr. Brian Rayhanabad MD

Internal Medicine·Long Beach, CA·1760721443

Active›

Moe Zaw M.D.

Internal Medicine·Chula Vista, CA·1063751444

Active›

Noor Alasady DO

Internal Medicine·South Gate, CA·1871832253

Active›

Dr. Samuel Zia M.D.

Internal Medicine·San Marino, CA·1285973594

Active›

Dr. Arneh Babakhani MD, PHD

Internal Medicine·San Diego, CA·1548509631

Active›

Deva Health, Corp.

Internal Medicine·Corona Del Mar, CA·1760310940

Active›

Spherical Medical, PC

Internal Medicine·Alameda, CA·1053697037

Active›

Dr. Matthew Murrill MD PHD

Internal Medicine·San Francisco, CA·1093054892

Active›

Dr. Edward Tsai

Internal Medicine·Yorba Linda, CA·1710227392

Active›

Dr. Jothan Staley M.D.

Internal Medicine·Inglewood, CA·1366782922

Active›

Dr. Shanta Chawla MD

Internal Medicine·Irvine, CA·1871833111

Active›

Ms. Devanshi Patel MD

Internal Medicine·Apple Valley, CA·1508421868

Active›

See the full list by city:See all in Los Angeles 1,747 See all in San Francisco 1,435 See all in San Diego 1,065 See all in Sacramento 640 See all in San Jose 487 See all in Oakland 451

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Internal Medicine in other states

New York15,456 Florida15,097 Texas12,374 Pennsylvania9,048 Illinois8,993 Michigan7,691 Massachusetts7,617 New Jersey6,583

Other specialties in California

Behavior Technician166,255 Marriage Family Therapist62,567 Student In An Organized Health Care Education Training Program41,345 Clinical Social Worker37,074 Pharmacist32,714 Mental Health Counselor30,116

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Internal Medicine nationwide →All California specialties →Browse all specialties →

Frequently asked · CaliforniaInternal Medicine in California

As of the June 2026 NPPES snapshot, 21,780 providers with the Internal Medicine taxonomy are registered to a California practice address. Counts refresh monthly from the public CMS registry.

Open any provider's full NPI record to see their active status, taxonomy, and registered California practice address. For real-time confirmation, the authoritative source is the CMS NPPES public registry, which FindMyNPI mirrors and refreshes monthly.

Los Angeles (1,747), San Francisco (1,435), San Diego (1,065). Use the "Refine by city" panel above to open any city's full directory.