Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory W Olenic, M.D.

Pain Medicine (Anesthesiology) Physician in Weirton, WV · enumerated 2006.

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

National Provider Identifier

1053399113

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory W Olenic

Credential M.D.

Sex Male

Practice address 601 Colliers Way, Weirton, WV, 26062

Phone (304) 797-6595

Fax (304) 797-6052

Enumeration date Jan 8, 2006

Last updated in NPPES Sep 22, 2011

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD424234 (PA) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 23967 (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
3810017283	Medicaid	WV	-
P00826312	Other	WV	MEDICARE RR
2774814	Medicaid	OH	-
1010177580001	Medicaid	PA	-

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 Gregory Olenic?

Gregory Olenic is registered in NPPES with the primary taxonomy of Pain Medicine (Anesthesiology) 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 2011-09-22.