CONTRA COSTA COUNTY
NPI 1386719086
General Acute Care Hospital in Martinez, CA
About Contra Costa County NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CONTRA COSTA COUNTY (NPI 1386719086), doing business as Contra Costa Health, is a healthcare organization registered as a general acute care hospital 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
Specialties & Licenses 5
Other Names 2
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation 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).
Medicare Revalidation Due Date
Revalidation due by October 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
526Medicare enrollment records show 526 clinicians reassign Medicare billing to Contra Costa County, which bills Medicare for the services they deliver. Of these, 122 practice at this address and 225 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 45
Nearest to this location (20)
See all 526Source: 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 1386719086. It was assigned to this organization in the NPPES registry on November 21, 2006. The provider is doing business as Contra Costa Health and Contra Costa Regional Medical Center.
Where is Contra Costa County located?
Contra Costa County is located at 2500 Alhambra Ave, Martinez, CA 94553. The listed phone number is (925) 370-5955.
What is Contra Costa County's specialty?
The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.
Is Contra Costa County enrolled in Medicare?
Yes. Contra Costa County is registered in the Medicare PECOS enrollment system.
When is Contra Costa County's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
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, 122 practice at this address and 225 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 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Contra Costa County · NPI 1386719086
General Acute Care Hospital organization in Martinez, California. Organization record, active in the CMS NPPES registry since November 21, 2006.
## Identity
- **NPI:** 1386719086 (Entity type: Organization)
- **Enumerated:** November 21, 2006
- **Primary specialty:** General Acute Care Hospital · taxonomy 282N00000X
- **Also known as:** Contra Costa Health (Doing Business As); Contra Costa Regional Medical Center (Doing Business As)
- **Organization subpart:** Yes (part of Contra Costa County)
- **Authorized official:** David Lee, DEPUTY CFO
## Practice location
- **Address:** 2500 ALHAMBRA AVE, Martinez, CA 94553-3156
- **Phone:** (925) 370-5955 · **Fax:** (925) 370-5275
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 526 clinicians in 45 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Family Practice (118), Psychiatry (103), Nurse Practitioner (52); 122 practice at this address and 225 within 10 miles; [full list](https://npiprofile.com/npi/1386719086/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1386719086) · Data from the CMS NPPES public registry.