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Healthcare Providers & Facilities in California

Comprehensive public directory of 980,686 individual practitioners and 196,313 medical facilities in California.

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980,686 Practitioners
196,313 Facilities
1,322 Cities

Select a City in California

Cities with a full directory, largest first; the A–Z list below also includes cities with at least one listed practitioner.

Los Angeles

69,975 Practitioners 12,852 Facilities

San Diego

53,158 Practitioners 6,995 Facilities

San Francisco

38,286 Practitioners 4,341 Facilities

Sacramento

33,292 Practitioners 3,971 Facilities

San Jose

21,029 Practitioners 3,683 Facilities

Fresno

19,591 Practitioners 3,317 Facilities

Oakland

18,690 Practitioners 1,991 Facilities

Monrovia

17,358 Practitioners 220 Facilities

Riverside

14,004 Practitioners 2,241 Facilities

Long Beach

13,742 Practitioners 2,598 Facilities

Orange

13,286 Practitioners 1,524 Facilities

Bakersfield

11,652 Practitioners 2,705 Facilities

Pasadena

10,571 Practitioners 2,049 Facilities

Stockton

9,618 Practitioners 1,306 Facilities

Concord

9,352 Practitioners 578 Facilities

Modesto

9,286 Practitioners 1,205 Facilities

Anaheim

9,071 Practitioners 1,928 Facilities

Santa Ana

8,953 Practitioners 1,713 Facilities

Torrance

8,950 Practitioners 1,987 Facilities

Irvine

7,827 Practitioners 2,034 Facilities

Palo Alto

7,641 Practitioners 485 Facilities

Santa Rosa

6,908 Practitioners 1,020 Facilities

Walnut Creek

6,187 Practitioners 777 Facilities

San Bernardino

5,760 Practitioners 1,245 Facilities

Stanford

5,617 Practitioners 69 Facilities

Fullerton

5,456 Practitioners 837 Facilities

Ontario

5,391 Practitioners 692 Facilities

Roseville

5,371 Practitioners 950 Facilities

Santa Barbara

5,363 Practitioners 1,048 Facilities

Chula Vista

5,349 Practitioners 926 Facilities

More Cities in California (A–Z, 355)

Includes the 80 largest of 994 smaller cities with at least one listed practitioner.

How California compares with the U.S.

Compared with the U.S. as a whole, California has more Licensed Psychiatric Technicians (8.3x), Technician, Health Information - Assistant Record Technicians (6.8x) and Rehabilitation Practitioners (5.7x) per 100,000 residents.

It has fewer clinicians in Technician - Personal Care Attendant (1% of the U.S. rate), Licensed Practical Nurses (5%) and clinicians in Home Health Aide (6%) per 100,000 residents.

California has 2,496 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

91% of clinicians in California listed in the CMS Medicare file (130,204 of 143,797) accept Medicare assignment. That is similar to the U.S. share of 92%.

Only 143,797 of 980,686 active clinicians in California appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

28% of clinicians in California listed in the CMS Medicare file (39,754 of 143,797) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the U.S. share of 21%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

California CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data

Source: CMS public datasets

In California, the NPPES registry lists 980,686 individual practitioners and 196,313 organizations.

In the CMS Part D Prescribers data for 2024, statewide total drug cost is $21,308.2 Million across 129,882,728 claims. 240,545 practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $410.0 Million in payments reported by companies to 98,854 practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $21,308.2M 129,882,728 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $410.0M 98,854 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 240,545 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $16,011.9M 278,272,838 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in California

Part B Lab & Imaging Eligible: 191,159
Durable Medical Equipment (DME): 200,902
Home Health Agency (HHA): 164,823
Source: CMS Order and Referring

Public profiles in California

Directory navigation, in NPI number order.

Individual practitioners

Organizations