CONTRA COSTA COUNTY
NPI 1376622977
Health Maintenance Organization in Martinez, CA

Active since November 03, 2006
595 CENTER AVE, SUITE 100, MARTINEZ, CA 94553(925) 957-5429 Get Directions Write a Review

NPPES record last updated: October 20, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Contra Costa County NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CONTRA COSTA COUNTY (NPI 1376622977), doing business as Contra Costa Health Plan, is a healthcare organization registered as a health maintenance organization in Martinez, California and active in the NPI registry since November 2006. The organization lists David D. Lee, Deputy Cfo, as its authorized official.

NPPES Registry Identity

NPI1376622977
Entity TypeOrganization
Primary Taxonomy302R00000X
Legal Business NameCONTRA COSTA COUNTY
Location Address595 CENTER AVE, SUITE 100Martinez, CA 94553-4633
Mailing Address50 Douglas Dr Ste 310Martinez, CA 94553-4003
Organization SubpartYes
Authorized OfficialDavid D. LeeDeputy Cfo · (925) 957-5445
Enumeration DateNovember 3, 2006
Last NPPES UpdateOctober 20, 2025
NPPES CertifiedOctober 20, 2025
NPI 1376622977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyHealth Maintenance OrganizationManaged Care Organizations
Taxonomy Code302R00000X
Definition
(1) A form of health insurance in which its members prepay a premium for the HMO's health services which generally include inpatient and ambulatory care. For the patient, an HMO means reduced out-of-pocket costs (i.e. no deductible), no paperwork (i.e. insurance forms), and only a small copayment for each office visit to cover the paperwork handled by the HMO; (2) A organization of health care personnel and facilities that provides a comprehensive range of health services to an enrolled population for a fixed sum of money paid in advance for a specified period of time. These health services include a wide variety of medical treatments and consults, inpatient and outpatient hospitalization, home health service, ambulance service, and sometimes dental and pharmacy services. The HMO may be organized as a group model, an individual practice association (IPA), a network model or a staff model.
595 CENTER AVE, Martinez, CA 94553

Other Names 1

Doing Business AsContra Costa Health Plan

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
595 CENTER AVE, SUITE 100
MARTINEZ, CA 94553
Registered Nurse (Case Management)
595 CENTER AVE, SUITE 150
MARTINEZ, CA 94553
Registered Nurse (Case Management)
595 CENTER AVE, SUITE 150
MARTINEZ, CA 94553
Internal Medicine (Gastroenterology)
595 CENTER AVE
MARTINEZ, CA 94553

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Contra Costa County's NPI number?

The NPI number for Contra Costa County is 1376622977. It was assigned to this organization in the NPPES registry on November 3, 2006. The provider is doing business as Contra Costa Health Plan.

Where is Contra Costa County located?

Contra Costa County is located at 595 Center Ave Suite 100, Martinez, CA 94553. The listed phone number is (925) 957-5429.

What is Contra Costa County's specialty?

The primary specialty registered for this NPI is Health Maintenance Organization with taxonomy code 302R00000X.

When was this NPI record last updated?

The NPPES record for Contra Costa County was last updated on October 20, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.