Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary L. Peck, MD

Dermatology Physician in Chevy Chase, MD · enumerated 2006.

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

National Provider Identifier

1710933890

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Registry record

Entity type Individual (Type 1)

Name Gary L. Peck

Credential MD

Sex Male

Practice address 5454 Wisconsin Ave, Suite 1045, Chevy Chase, MD, 20815

Phone (301) 652-4828

Fax (301) 652-2070

Enumeration date May 26, 2006

Last updated in NPPES Aug 24, 2022

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD25243 (DC) 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
118281101	Medicaid	MD	-
025751800	Medicaid	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Gary Peck?

Gary Peck is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-24.