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

Dr. William Hammer III, PHARMD, MBA

Pharmacist in Ballston Spa, NY · enumerated 2015 · practices at Martins Foods of South Burlington LLC.

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

National Provider Identifier

1548656309

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Registry record

Entity type Individual (Type 1)
Name Dr. William Hammer III
Credential PHARMD, MBA
Sex Male
Practice address Ballston Spa, NY, 12020
Phone (518) 885-4672
Enumeration date Apr 8, 2015
Last updated in NPPES Apr 8, 2015

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 054171 (NY) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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.

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Frequently asked questions

Where does William Hammer practice?
The practice location on file with NPPES is in Ballston Spa, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Hammer?
The National Provider Identifier (NPI) for William Hammer is 1548656309, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-08.