NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Harold Williams, DO

Obstetrics & Gynecology Physician in The Woodlands, TX · enumerated 2005.

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

National Provider Identifier

1720076573

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John Harold Williams
Credential DO
Sex Male
Practice address 17198 St Lukes Way, #440, The Woodlands, TX, 77384
Fax (936) 321-1045
Enumeration date Oct 6, 2005
Last updated in NPPES Jun 9, 2014

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License F5416 (TX) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
00J21A Other TX GROUP MEDICARE
131944410 Medicaid TX -

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

Where does John Williams practice?
The practice location on file with NPPES is in The Woodlands, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Williams?
The National Provider Identifier (NPI) for John Williams is 1720076573, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-09.