Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Joan Patricia Williams, R.PH.

Pharmacist in Ft Belvoir, VA · enumerated 2012.

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

National Provider Identifier

1639444672

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Registry record

Entity type Individual (Type 1)

Name Ms. Joan Patricia Williams

Credential R.PH.

Sex Female

Practice address 9300 Dewitt Loop, Ft Belvoir Community Hospital Pharmacy, Ft Belvoir, VA, 22060

Phone (571) 231-9224

Enumeration date Mar 8, 2012

Last updated in NPPES Mar 8, 2012

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 07352 (MD) Primary

183500000X Pharmacist Pharmacy Service Providers · License 0202001672 (VA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Joan Williams?

The National Provider Identifier (NPI) for Joan Williams is 1639444672, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joan Williams practice?

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

Other providers at this practice address

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Helen Johnson Family Medicine Physician · Fort Belvoir, VA NPI 1972507887 Melissa Schott Clinical Social Worker · Ft Belvoir, VA NPI 1053318204 Christopher Kurtz Sports Medicine (Orthopaedic Surgery) Physician · Fort Belvoir, VA NPI 1548261597 Todd Lauby Optometrist · Ft Belvoir, VA NPI 1942202924 Katie Kotopoulos Family Nurse Practitioner · Fort Belvoir, VA NPI 1053303651 James Ellzy Family Medicine Physician · Fort Belvoir, VA NPI 1417949736 Thomas Cantilina Family Medicine Physician · Fort Belvoir, VA NPI 1134111453 Catherine Seangio Hospitalist Physician · Fort Belvoir, VA NPI 1922091669

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-08.