NPPES file of Aug 9, 2026

Contra Costa Pathology Associates in Walnut Creek, CA

This location of Contra Costa Pathology Associates bills under NPI 1437211646, an organization record issued on Dec 14, 2006 with the primary taxonomy Anatomic Pathology & Clinical Pathology Physician. It is one of 5 NPIs registered under this name; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1437211646
Legal name
Contra Costa Pathology Associates
Entity
Type 2 · organization
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
Practice location
1601 YGNACIO VALLEY RD # 201, Walnut Creek, CA 94598
Phone
925-939-3000
Mailing address
Suisun City, CA
Enumerated
Dec 14, 2006
Record updated
Aug 22, 2020
Authorized official
Partner (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

5 clinicians CMS lists with Contra Costa Pathology Associates in Walnut Creek

  1. Nicholas Byrne, MDAnatomic Pathology & Clinical Pathology Physician1710191325
  2. Dennis Hwang, MDAnatomic Pathology & Clinical Pathology Physician1740361963
  3. Risha Ramdall, MDAnatomic Pathology & Clinical Pathology Physician1841224862
  4. Nader Shihabi, MDAnatomic Pathology & Clinical Pathology Physician1033290325
  5. David ZlotnickAnatomic Pathology & Clinical Pathology Physician1740504588

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 5 Contra Costa Pathology Associates NPIs

Every location registered under this name, in 5 cities.

See every location

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.