Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jason A Wexler, M.D.

Endocrinology, Diabetes & Metabolism Physician in Washington, DC · enumerated 2006 · practices at Washington National Eye Center.

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

National Provider Identifier

1376502179

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Registry record

Entity type Individual (Type 1)

Name Dr. Jason A Wexler

Credential M.D.

Sex Male

Practice address 110 Irving Street, Nw, Room 2a72, Washington, DC, 20010

Phone (202) 877-9137

Fax (202) 877-6588

Enumeration date Mar 21, 2006

Last updated in NPPES Apr 7, 2015

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License D0062361 (MD) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 036170 (DC) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Jason Wexler?

Jason Wexler is registered in NPPES with the primary taxonomy of Endocrinology, Diabetes & Metabolism 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 2015-04-07.