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

Margaret Williamson, PHARM.D.

Pharmacotherapy Pharmacist in Opelika, AL · enumerated 2014.

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

National Provider Identifier

1528471612

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Registry record

Entity type Individual (Type 1)

Name Margaret Williamson

Credential PHARM.D.

Sex Female

Practice address Opelika, AL, 36801

Phone (334) 528-2270

Enumeration date Jun 5, 2014

Last updated in NPPES Jul 13, 2023

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

Taxonomy & licenses

1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 17091 (AL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Margaret Williamson?

The National Provider Identifier (NPI) for Margaret Williamson is 1528471612, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Williamson practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-13.