Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory P Guyton, MD

Orthopaedic Foot and Ankle Surgery Physician in Baltimore, MD · enumerated 2006.

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

National Provider Identifier

1386688570

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Registry record

Entity type Individual (Type 1)

Name Gregory P Guyton

Credential MD

Sex Male

Practice address 3333 N Calvert St, Ste 400, Baltimore, MD, 21218

Phone (410) 554-6844

Fax (410) 554-4326

Enumeration date Jun 16, 2006

Last updated in NPPES Mar 8, 2017

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D59372 (MD) Secondary

207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License D0059372 (MD) 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
896201	Medicaid	MD	-
61674501	Other	MD	BCBS
903A	Other	MD	CFBCBS MD
J848	Other	DC	CFBCBS DC

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

What is the NPI number for Gregory Guyton?

The National Provider Identifier (NPI) for Gregory Guyton is 1386688570, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Guyton practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-08.