NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark A Wenger, M. D.

Allergy & Immunology Physician in Fredericksburg, VA · enumerated 2005 · practices at Allergy Partners, Pllc.

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

National Provider Identifier

1336139666

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark A Wenger
Credential M. D.
Sex Male
Practice address 511 Park Hill Dr, Fredericksburg, VA, 22401
Fax (540) 372-6920
Enumeration date Oct 27, 2005
Last updated in NPPES Jun 6, 2022

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 0101059064 (VA) 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
1336139666 Medicaid VA -
006254A38 Other VA MEDICARE PTAN

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 Mark Wenger?
The National Provider Identifier (NPI) for Mark Wenger is 1336139666, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Wenger practice?
The practice location on file with NPPES is in Fredericksburg, VA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-06.