NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Jeffrey Chimahosky, D.O.

Internal Medicine Physician in Pottsville, PA · enumerated 2006 · practices at Chimahosky Internal Medicine PC.

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

National Provider Identifier

1891723953

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Registry record

Entity type Individual (Type 1)
Name Dr. Jeffrey Chimahosky
Credential D.O.
Sex Male
Practice address Pottsville, PA, 17901
Phone (570) 622-1910
Fax (570) 622-5030
Enumeration date Jun 29, 2006
Last updated in NPPES Dec 19, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OS013721 (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
I60474 Other PA HEALTH AMERICA
1879830 Other PA HIGHMARK BLUE SHIELD
50065175 Other PA KEYSTONE HEALTH PLANS
50065175 Other PA CAPITAL BLUE CROSS
102014 S154 Other PA GEISINGER HEALTH PLANS

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 Jeffrey Chimahosky?
Jeffrey Chimahosky 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 2012-12-19.