Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William David Strayhorn IV, M.D., PH.D.

Neurology Physician in Frederick, MD · enumerated 2006.

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

National Provider Identifier

1184722258

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Registry record

Entity type Individual (Type 1)

Name Dr. William David Strayhorn IV

Credential M.D., PH.D.

Sex Male

Practice address 196 Thomas Johnson Dr, Suite 120, Frederick, MD, 21702

Phone (240) 566-3130

Fax (240) 566-3131

Enumeration date Sep 20, 2006

Last updated in NPPES Sep 16, 2014

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 2004024761 (MO) Primary

204D00000X Neuromusculoskeletal Medicine & OMM Physician Allopathic & Osteopathic Physicians · License D0071626 (MD) Secondary

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
2009001301	Other	MO	MO LICENSE

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 Strayhorn?

The National Provider Identifier (NPI) for William Strayhorn is 1184722258, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Strayhorn practice?

The practice location on file with NPPES is in Frederick, MD. 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 2014-09-16.