Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Sherwood Smith, FNP

Family Nurse Practitioner in Adelphi, MD · enumerated 2016.

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

National Provider Identifier

1639522246

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Registry record

Entity type Individual (Type 1)

Name Mr. William Sherwood Smith

Credential FNP

Sex Male

Practice address 8908 Riggs Rd, Adelphi, MD, 20783

Phone (214) 693-5790

Enumeration date Jul 19, 2016

Last updated in NPPES Aug 2, 2023

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN1032225 (DC) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R215271 (MD) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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 William Smith?

The National Provider Identifier (NPI) for William Smith is 1639522246, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Smith practice?

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

Other providers at this practice address

Browse all →

Karen Grace Advanced Practice Midwife · Adelphi, MD NPI 1174612733 Mable Dunn Medical Physician Assistant · Adelphi, MD NPI 1992943872 Judy Hoyer Health Center Clinic/Center · Adelphi, MD NPI 1629383864 Carlos Gasha Tamashiro Pediatrics Physician · Adelphi, MD NPI 1063700466 Mary'S Center for Maternal and Child Care, Inc. Federally Qualified Health Center (FQHC) · Hyattsville, MD NPI 1194077297 Mary'S Center for Maternal and Child Care, Inc. General Practice Dentistry · Adelphi, MD NPI 1972920742 Kathleen Moraff Psychologist · Adelphi, MD NPI 1104398916 Claudia Martinez Pediatrics Physician · Adelphi, MD NPI 1861952640

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-02.