Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Anna Kolbuszewska

Genetic Counselor (M.S.) in Walnut Creek, CA · enumerated 2019.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770137499

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Registry record

Entity type Individual (Type 1)

Name Miss Anna Kolbuszewska

Sex Female

Practice address 110 Tampico Ste 100, Walnut Creek, CA, 94598

Phone (925) 891-9033

Enumeration date Jul 31, 2019

Last updated in NPPES Jul 31, 2019

Taxonomy & licenses

170300000X Genetic Counselor (M.S.) Other Service Providers · License GC001159 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1770137499 active?

Yes, as of the latest NPPES snapshot, NPI 1770137499 is active (record last updated 2019-07-31).

How do I verify Anna Kolbuszewska's NPI record?

Cross-check NPI 1770137499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Jeffrey Traynor Maternal & Fetal Medicine Physician · Walnut Creek, CA NPI 1316981699 Carol Symmons Genetic Counselor (M.S.) · Walnut Creek, CA NPI 1588176275

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-31.