Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Elizabeth Williams, PA-C

Physician Assistant in Portsmouth, OH · enumerated 2009.

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

National Provider Identifier

1285871046

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Registry record

Entity type Individual (Type 1)

Name Mary Elizabeth Williams

Credential PA-C

Sex Female

Practice address 840 Gallia St, Portsmouth, OH, 45662

Phone (740) 353-3236

Fax (740) 353-4803

Enumeration date Jan 15, 2009

Last updated in NPPES Jan 15, 2009

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2869 (OH) 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 Williams's NPI record?

Cross-check NPI 1285871046 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1285871046 active?

Yes, as of the latest NPPES snapshot, NPI 1285871046 is active (record last updated 2009-01-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-15.