CONTRA COSTA PATHOLOGY ASSOCIATES
NPI 1437211646
Pathology - Anatomic Pathology & Clinical Pathology in Walnut Creek, CA
About Contra Costa Pathology Associates NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CONTRA COSTA PATHOLOGY ASSOCIATES (NPI 1437211646) is a healthcare organization registered as an anatomic pathology & clinical pathology in Walnut Creek, California and active in the NPI registry since December 2006. The organization lists Bernard Larner, Partner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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 Pathology Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
18Medicare enrollment records show 18 clinicians reassign Medicare billing to Contra Costa Pathology Associates, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 6 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (18)
Walnut Creek, CA 94598
Walnut Creek, CA 94598
Los Angeles, CA 90095
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 Pathology Associates's NPI number?
The NPI number for Contra Costa Pathology Associates is 1437211646. It was assigned to this organization in the NPPES registry on December 14, 2006.
Where is Contra Costa Pathology Associates located?
Contra Costa Pathology Associates is located at 1601 Ygnacio Valley Rd # 201, Walnut Creek, CA 94598. The listed phone number is (925) 939-3000.
What is Contra Costa Pathology Associates's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Contra Costa Pathology Associates enrolled in Medicare?
Yes. Contra Costa Pathology Associates is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Contra Costa Pathology Associates?
According to the CMS Revalidation Reassignment List (October 2026 release), 18 clinicians in 2 Medicare specialties reassign their Medicare billing to Contra Costa Pathology Associates. 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 Pathology (17) and Dermatology (1). Of these, 3 practice at this address and 6 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 Pathology Associates was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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 Pathology Associates · NPI 1437211646
Anatomic Pathology & Clinical Pathology organization in Walnut Creek, California. Organization record, active in the CMS NPPES registry since December 14, 2006.
## Identity
- **NPI:** 1437211646 (Entity type: Organization)
- **Enumerated:** December 14, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **Organization subpart:** No
- **Authorized official:** Bernard Larner, PARTNER
## Practice location
- **Address:** 1601 YGNACIO VALLEY RD # 201, Walnut Creek, CA 94598-3122
- **Phone:** (925) 939-3000 · **Fax:** (510) 964-0476
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 18 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Pathology (17), Dermatology (1); 3 practice at this address and 6 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 22, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1437211646) · Data from the CMS NPPES public registry.