Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jon J Olenginski, DO

Internal Medicine Physician in Nanticoke, PA · enumerated 2006 · practices at Geisinger Clinic.

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

National Provider Identifier

1033164215

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Registry record

Entity type Individual (Type 1)

Name Jon J Olenginski

Credential DO

Sex Male

Practice address 128 E Main St, Nanticoke, PA, 18634

Phone (570) 258-1304

Fax (570) 258-1305

Enumeration date May 24, 2006

Last updated in NPPES Aug 31, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OS007908L (PA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
002459	Other	PA	FIRST PRIORITY HEALTH
0015426390004	Medicaid	PA	-
20460	Other	PA	GEISINGER HEALTH PLAN
787926	Other	PA	HIGHMARK BLUE SHIELD
129715	Other	PA	HEALTH AMERICA
787926	Other	PA	FIRST PRIORITY LIFE
020017400	Other	PA	BLACK LUNG

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 Jon Olenginski?

Jon Olenginski is registered in NPPES with the primary taxonomy of Internal Medicine 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 2020-08-31.