Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William F Pierce, PHARM.D.

Pharmacotherapy Pharmacist in Silver Spring, MD · enumerated 2007.

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

National Provider Identifier

1952582165

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Registry record

Entity type Individual (Type 1)

Name Dr. William F Pierce

Credential PHARM.D.

Sex Male

Practice address 10903 New Hampshire Bldg 22, Silver Spring, MD, 20993

Phone (301) 796-0521

Enumeration date Nov 15, 2007

Last updated in NPPES Nov 15, 2007

Taxonomy & licenses

1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 18105 (MD) Primary

1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 9953 (CT) Secondary

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

Where does William Pierce practice?

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

What is the NPI number for William Pierce?

The National Provider Identifier (NPI) for William Pierce is 1952582165, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-15.