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

Karl G Williams, RPH

Geriatric Pharmacist in Saratoga Springs, NY · enumerated 2006.

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

National Provider Identifier

1295777233

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Registry record

Entity type Individual (Type 1)

Name Karl G Williams

Credential RPH

Sex Male

Practice address Saratoga Springs, NY, 12866

Phone (518) 581-1051

Enumeration date Jun 12, 2006

Last updated in NPPES Sep 11, 2025

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

Taxonomy & licenses

1835G0303X Geriatric Pharmacist Pharmacy Service Providers · License 26695 (MA) Primary

183500000X Pharmacist Pharmacy Service Providers · License 33882 (NY) Secondary

183500000X Pharmacist Pharmacy Service Providers · License 9433 (KY) Secondary

183500000X Pharmacist Pharmacy Service Providers · License 033-0003364 (VT) Secondary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Karl Williams?

Karl Williams is registered in NPPES with the primary taxonomy of Geriatric Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.