Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Beatty Hammett, M.D.

Obstetrics & Gynecology Physician in Delaware, OH · enumerated 2006.

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

National Provider Identifier

1902827579

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Registry record

Entity type Individual (Type 1)

Name William Beatty Hammett

Credential M.D.

Sex Male

Practice address 460 W Central Ave, Suite D, Delaware, OH, 43015

Phone (740) 615-2700

Fax (740) 615-2701

Enumeration date Jul 21, 2006

Last updated in NPPES Aug 22, 2024

Taxonomy & licenses

174400000X Specialist Other Service Providers · License VA-47180 (OH) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 35.074556 (OH) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2076819	Medicaid	OH	-

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

Where does William Hammett practice?

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

What is the NPI number for William Hammett?

The National Provider Identifier (NPI) for William Hammett is 1902827579, 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 2024-08-22.