Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Katherine Williams, PA-C
Physician Assistant in Raleigh, NC · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588959407
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Registry record
Entity type Individual (Type 1)
Name Mary Katherine Williams
Credential PA-C
Sex Female
Practice address 8020 Creedmoor Rd, Raleigh, NC, 27613
Phone (919) 322-2844
Fax (919) 322-2898
Enumeration date Jun 20, 2011
Last updated in NPPES Sep 19, 2024
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0010-02907 (NC) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1588959407 | Medicaid | NC | - |
| 1759N | Other | NC | BCBS |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mary Williams?
Mary Williams is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-19.