Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Mary Elizabeth Katz

Physician Assistant in Concord, CA · enumerated 2011.

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

National Provider Identifier

1922377910

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Registry record

Entity type Individual (Type 1)

Name Miss Mary Elizabeth Katz

Sex Female

Practice address 2182 East St, Concord, CA, 94520

Phone (925) 685-4224

Fax (925) 685-6997

Enumeration date Dec 20, 2011

Last updated in NPPES Jan 4, 2023

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 1091172 (MI) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601008141 (MI) 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.

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Frequently asked questions

How do I verify Mary Katz's NPI record?

Cross-check NPI 1922377910 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1922377910 active?

Yes, as of the latest NPPES snapshot, NPI 1922377910 is active (record last updated 2023-01-04).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-04.