California NPI Registry — Provider Lookup

Look up NPI numbers for healthcare providers in California. Our latest NPPES snapshot includes 1,160,470 active providers and organizations with a practice location in California, searchable by name, specialty, and city.

Top specialties in California

Behavior Technician in CA (166,722)
Counselor in CA (79,020)
Marriage & Family Therapist in CA (62,640)
Dentist in CA (53,951)
Social Worker in CA (48,181)
Internal Medicine in CA (42,256)
Student in an Organized Health Care Education/Training Program in CA (41,336)
Nurse Practitioner in CA (38,634)
Pharmacist in CA (36,102)
Clinic/Center in CA (31,651)
Physical Therapist in CA (28,089)
Psychologist in CA (27,486)
Registered Nurse in CA (25,176)
Case Manager/Care Coordinator in CA (23,369)
Family Medicine in CA (23,130)
Behavior Analyst in CA (21,333)
Physician Assistant in CA (18,921)
Chiropractor in CA (17,654)
Psychiatry & Neurology in CA (15,725)
Pediatrics in CA (14,290)
Acupuncturist in CA (13,681)
Speech-Language Pathologist in CA (13,650)
Rehabilitation Practitioner in CA (13,626)
Occupational Therapist in CA (12,399)
Optometrist in CA (11,918)
Community Health Worker in CA (11,367)
Anesthesiology in CA (10,779)
Licensed Vocational Nurse in CA (10,516)
Pharmacy in CA (9,936)
Specialist in CA (9,343)

Browse by city

Los Angeles, CA (81,962)
San Diego, CA (59,433)
San Francisco, CA (42,236)
Sacramento, CA (36,926)
San Jose, CA (24,425)
Fresno, CA (22,398)
Oakland, CA (20,438)
Monrovia, CA (16,807)
Long Beach, CA (16,102)
Riverside, CA (15,966)
Orange, CA (14,589)
Bakersfield, CA (14,148)
Pasadena, CA (12,487)
Anaheim, CA (10,943)
Stockton, CA (10,857)
Torrance, CA (10,820)
Santa Ana, CA (10,577)
Modesto, CA (10,258)
Irvine, CA (9,702)
Concord, CA (9,639)
Palo Alto, CA (8,020)
Glendale, CA (7,978)
Santa Rosa, CA (7,834)
San Bernardino, CA (6,913)
Walnut Creek, CA (6,880)
Van Nuys, CA (6,777)
Santa Barbara, CA (6,375)
Santa Monica, CA (6,357)
Roseville, CA (6,242)
Fullerton, CA (6,224)
Chula Vista, CA (6,143)
Newport Beach, CA (6,073)
Ontario, CA (5,896)
Pomona, CA (5,811)
Rancho Cucamonga, CA (5,630)
Stanford, CA (5,577)
Fremont, CA (5,553)
San Leandro, CA (5,487)
Berkeley, CA (5,474)
Santa Cruz, CA (5,470)

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 1,160,470 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 2026-07-09.