State provider hub
California NPI Registry - Provider Lookup
Look up NPI numbers for healthcare providers in California, searchable by name, specialty, and city, drawn from the public CMS NPPES data file.
1,169,102
providers & organizations
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Top specialties in California
Behavior Technician 169,392 Counselor 79,252 Marriage & Family Therapist 63,012 Dentist 54,183 Social Worker 48,590 Internal Medicine 42,517 Student in an Organized Health Care Education/Training Program 40,904 Nurse Practitioner 38,951 Pharmacist 36,202 Clinic/Center 31,769 Physical Therapist 28,201 Psychologist 27,644 Registered Nurse 25,500 Case Manager/Care Coordinator 23,369 Family Medicine 23,312 Behavior Analyst 21,560 Physician Assistant 19,037 Chiropractor 17,691 Psychiatry & Neurology 15,835 Pediatrics 14,355 Speech-Language Pathologist 13,938 Rehabilitation Practitioner 13,748 Acupuncturist 13,717 Occupational Therapist 12,556 Optometrist 11,978 Community Health Worker 11,380 Anesthesiology 10,851 Licensed Vocational Nurse 10,625 Pharmacy 9,954 Specialist 9,323
Browse by city
Los Angeles, CA 82,420 San Diego, CA 59,793 San Francisco, CA 42,468 Sacramento, CA 37,122 San Jose, CA 24,580 Fresno, CA 22,591 Oakland, CA 20,601 Monrovia, CA 17,157 Long Beach, CA 16,250 Riverside, CA 16,093 Orange, CA 14,691 Bakersfield, CA 14,282 Pasadena, CA 12,592 Anaheim, CA 10,964 Torrance, CA 10,894 Stockton, CA 10,884 Santa Ana, CA 10,639 Modesto, CA 10,366 Concord, CA 9,793 Irvine, CA 9,778 Palo Alto, CA 8,073 Glendale, CA 8,041 Santa Rosa, CA 7,866 San Bernardino, CA 6,978 Walnut Creek, CA 6,919 Van Nuys, CA 6,810 Santa Barbara, CA 6,389 Santa Monica, CA 6,380 Roseville, CA 6,289 Fullerton, CA 6,240 Chula Vista, CA 6,205 Newport Beach, CA 6,100 Ontario, CA 5,982 Pomona, CA 5,835 Rancho Cucamonga, CA 5,704 Stanford, CA 5,650 Fremont, CA 5,599 Santa Cruz, CA 5,552 Garden Grove, CA 5,538 Berkeley, CA 5,511
Frequently asked questions
How do I look up an NPI number in California?
Use the NPI search and select CA, or browse the specialty and city directories on this page. Every provider profile shows the NPI, taxonomy, practice address, and status.
How many healthcare providers are registered in California?
Our latest NPPES snapshot lists 1,169,102 active providers and organizations with a practice location in California.
Is this the official California NPI registry?
No, NPI numbers are issued federally by CMS, not by states. This is a private directory built on the public CMS NPPES data file; the official registry is npiregistry.cms.hhs.gov.
Source: CMS NPPES (public data). Snapshot 2026-07-13.