Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leon D Weaver, M.D.

Pediatric Adolescent Medicine Physician in Hagerstown, MD · enumerated 2005.

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

National Provider Identifier

1255323119

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Registry record

Entity type Individual (Type 1)

Name Leon D Weaver

Credential M.D.

Sex Male

Practice address 1161 Omega Dr, Hagerstown, MD, 21740

Phone (301) 393-2600

Fax (301) 393-2614

Enumeration date Aug 17, 2005

Last updated in NPPES Feb 15, 2013

Taxonomy & licenses

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians · License D57280 (MD) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License D57280 (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
982000100	Medicaid	MD	-

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

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.

What specialty is Leon Weaver?

Leon Weaver is registered in NPPES with the primary taxonomy of Pediatric Adolescent Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-15.