Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Joseph Martin, M.D.

Pulmonary Disease Physician in Bethesda, MD · enumerated 2006.

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

National Provider Identifier

1992762843

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Registry record

Entity type Individual (Type 1)

Name Dr. William Joseph Martin

Credential M.D.

Sex Male

Practice address 10 Center Dr, Bethesda, MD, 20892

Phone (919) 541-3201

Fax (919) 541-5136

Enumeration date Apr 26, 2006

Last updated in NPPES Mar 18, 2009

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35-081517 (OH) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 35-081517 (OH) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
100069110	Medicaid	IN	-
64072663	Medicaid	KY	-
2357453	Medicaid	OH	-

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

Where does William Martin practice?

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

What is the NPI number for William Martin?

The National Provider Identifier (NPI) for William Martin is 1992762843, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Gretchen Golas Pediatric Nurse Practitioner · Bethesda, MD NPI 1114912078 Paul Slovin Anesthesiology Physician · Bethesda, MD NPI 1740265446 John Beigel Infectious Disease Physician · Bethesda, MD NPI 1396705372 Barry Miller Family Nurse Practitioner · Bethesda, MD NPI 1851352074 Rebecca Brown Pediatrics Physician · Bethesda, MD NPI 1386692309 James Gulley Hematology & Oncology Physician · Bethesda, MD NPI 1720038771 Madeleine Deming Internal Medicine Physician · Bethesda, MD NPI 1609820802 Sandra Orfgen Anesthesiology Physician · Bethesda, MD NPI 1992750368

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-18.