CONTRA COSTA COUNTY
NPI 1023188489
Clinic/Center - Adult Mental Health in Concord, CA

Active since November 09, 2006
1420 WILLOW PASS RD, CONCORD, CA 94520(925) 646-5480(925) 646-5622 Get Directions Write a Review

NPPES record last updated: October 9, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 9, 2025, Sep 30, 2022, Jun 14, 2019 (3 updates tracked since 2019).

About Contra Costa County NPPES

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

CONTRA COSTA COUNTY (NPI 1023188489), doing business as Central County Adult Mental Health Services, is a healthcare organization registered as an adult mental health in Concord, 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

NPI1023188489
Entity TypeOrganization
Primary Taxonomy261QM0850X
Legal Business NameCONTRA COSTA COUNTY
Location Address1420 WILLOW PASS RDConcord, CA 94520-5823
Mailing Address50 Douglas Dr Ste 310Martinez, CA 94553-4003
Fax(925) 646-5622
Organization SubpartYes
Authorized OfficialDavid D. LeeDeputy Cfo · (925) 957-5445
Enumeration DateNovember 9, 2006
Last NPPES UpdateOctober 9, 20253 updates tracked since enumeration
NPPES CertifiedOctober 9, 2025
✔ NPI 1023188489 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Adult Mental HealthAmbulatory Health Care Facilities
Taxonomy Code261QM0850X
Definition
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults.
1420 WILLOW PASS RD, Concord, CA 94520

Other Names 1

Doing Business AsCentral County Adult Mental Health Services

Other Identifiers 1

Other07CMCA · Mental Health

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Contra Costa County is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

526

Medicare enrollment records show 526 clinicians reassign Medicare billing to Contra Costa County, which bills Medicare for the services they deliver. Of these, 23 practice at this address and 222 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 45

Family Practice118
Psychiatry103
Nurse Practitioner52
Marriage and Family Therapist29
Clinical Social Worker28
Emergency Medicine22
Obstetrics/Gynecology18
Internal Medicine12
37 other specialties144

Nearest to this location (20)

See all 526
Nurse Practitioner
NPI 1689075251
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1235481565
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 521-5150
✔ PECOSSame address
Marriage and Family Therapist
NPI 1225101249
1420 WILLOW PASS RD # 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Marriage and Family Therapist
NPI 1740522119
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Addiction Medicine
NPI 1255793295
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Marriage and Family Therapist
NPI 1023544566
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 521-5124
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1174103261
1420 WILLOW PASS RD
Concord, CA 94520
(215) 427-5800
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1932265600
1420 WILLOW PASS RD SUITE 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1447342902
1420 WILLOW PASS RD SUITE 200
Concord, CA 94520
(925) 646-5482
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1619048295
1420 WILLOW PASS RD
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1730267329
1420 WILLOW PASS RD
Concord, CA 94520
(925) 521-5100
✔ PECOSSame address
Clinical Social Worker
NPI 1629127899
1420 WILLOW PASS RD
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Marriage and Family Therapist
NPI 1487818803
1430 WILLOW PASS RD STE 100
Concord, CA 94520
(925) 288-3926
✔ PECOSSame address
Mental Health Counselor
NPI 1306356829
1430 WILLOW PASS RD STE 100
Concord, CA 94520
(925) 646-5774
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1164718276
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1922521848
1420 WILLOW PASS RD # 200
Concord, CA 94520
(925) 521-5100
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1982982674
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 521-5132
✔ PECOSSame address
Nurse Practitioner
NPI 1821392846
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 646-5480
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1205846581
1420 WILLOW PASS RD STE 200
Concord, CA 94520
(925) 646-5480
✔ PECOSSame address
Clinical Psychologist
NPI 1114174877
1430 WILLOW PASS RD STE 100
Concord, CA 94520
(925) 288-3907
✔ PECOS✔ Accepts MedicareSame address
See all 526 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 1023188489. It was assigned to this organization in the NPPES registry on November 9, 2006. The provider is doing business as Central County Adult Mental Health Services.

Where is Contra Costa County located?

Contra Costa County is located at 1420 Willow Pass Rd, Concord, CA 94520. The listed phone number is (925) 646-5480.

What is Contra Costa County's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Adult Mental Health, with taxonomy code 261QM0850X.

Is Contra Costa County enrolled in Medicare?

Yes. Contra Costa County is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Contra Costa County?

According to the CMS Revalidation Reassignment List (October 2026 release), 526 clinicians in 45 Medicare specialties reassign their Medicare billing to Contra Costa County. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Family Practice (118), Psychiatry (103) and Nurse Practitioner (52). Of these, 23 practice at this address and 222 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Contra Costa County was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.