NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Marshall Guy, M.D.

Facial Plastic Surgery Physician in Shenandoah, TX · enumerated 2010.

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

National Provider Identifier

1073844957

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. William Marshall Guy
Credential M.D.
Sex Male
Practice address Shenandoah, TX, 77384
Phone (832) 956-1040
Fax (832) 956-1045
Enumeration date Jan 16, 2010
Last updated in NPPES Sep 26, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License BP10034383 (TX) Secondary
207YS0123X Facial Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 32968 (AL) Secondary
207YS0123X Facial Plastic Surgery Physician Allopathic & Osteopathic Physicians · License P9864 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 William Guy practice?
The practice location on file with NPPES is in Shenandoah, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Guy?
The National Provider Identifier (NPI) for William Guy is 1073844957, 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 2024-09-26.