Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark S Younis, MD

Q: What is the NPI number for Mark Younis?

The National Provider Identifier (NPI) for Mark Younis is 1649279621, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in Ripley, WV · enumerated 2005.

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

National Provider Identifier

1649279621

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Registry record

Entity type Individual (Type 1)

Name Mark S Younis

Credential MD

Sex Male

Practice address Pinnell Street, Ripley, WV, 25271

Phone (304) 372-2731

Enumeration date Jul 20, 2005

Last updated in NPPES Jan 30, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 37991 (KY) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 25.000006 (OH) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 17087 (WV) 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
0120068000	Medicaid	WV	-
000000390831	Other	KY	BCBS
000164081	Other	WV	BCBS
2047207	Medicaid	OH	-
64942055	Medicaid	KY	-
P00012899	Other	WV	RAILROAD MEDICARE

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 Mark Younis practice?

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

What is the NPI number for Mark Younis?

The National Provider Identifier (NPI) for Mark Younis is 1649279621, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-30.