Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mariama Semega-Janneh, MD

Endocrinology, Diabetes & Metabolism Physician in Washington, DC · enumerated 2006.

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

National Provider Identifier

1083712459

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Registry record

Entity type Individual (Type 1)

Name Mariama Semega-Janneh

Credential MD

Sex Female

Practice address 6856 Eastern Ave Nw, Washington, DC, 20012

Phone (800) 881-4428

Fax (888) 881-3412

Enumeration date Sep 20, 2006

Last updated in NPPES Mar 29, 2012

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License MD034302 (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
010170541	Medicaid	VA	-
036785700	Medicaid	DC	-
407823300	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mariama Semega-Janneh practice?

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

What is the NPI number for Mariama Semega-Janneh?

The National Provider Identifier (NPI) for Mariama Semega-Janneh is 1083712459, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-29.