Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William C. Gewin, M.D.

Pulmonary Disease Physician in Mobile, AL · enumerated 2006.

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

National Provider Identifier

1386692267

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Registry record

Entity type Individual (Type 1)

Name William C. Gewin

Credential M.D.

Sex Male

Practice address 1700 Springhill Ave, Suite 100, Mobile, AL, 36604

Phone (251) 435-1200

Fax (251) 435-6353

Enumeration date May 4, 2006

Last updated in NPPES Jan 9, 2008

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 7002 (AL) 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 Gewin practice?

The practice location on file with NPPES is in Mobile, AL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Gewin?

The National Provider Identifier (NPI) for William Gewin is 1386692267, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-09.