Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Robert Jay Williams, PAC

Surgical Physician Assistant in Houston, TX · enumerated 2007.

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

National Provider Identifier

1639208697

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Registry record

Entity type Individual (Type 1)

Name Mr. Robert Jay Williams

Credential PAC

Sex Male

Practice address 6410 Fannin, #1115, Houston, TX, 77030

Phone (713) 795-5300

Fax (713) 795-0030

Enumeration date Mar 5, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA00919 (TX) Primary

Other identifiers

Identifier	Type	State	Issuer
PA00919	Other	TX	TX LICENSE NO
PA00919	Other	TX	TSBME
88N184	Other	-	BLUE CROSS BLUE S

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

Is NPI 1639208697 active?

Yes, as of the latest NPPES snapshot, NPI 1639208697 is active (record last updated 2007-07-08).

How do I verify Robert Williams's NPI record?

Cross-check NPI 1639208697 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.