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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark J Kropinak, D.O.

Ophthalmology Physician in Chambersburg, PA · enumerated 2006.

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

National Provider Identifier

1326135716

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark J Kropinak
Credential D.O.
Sex Male
Practice address 825 5th Ave, Suite 102, Chambersburg, PA, 17201
Phone (717) 262-9700
Fax (717) 262-9714
Enumeration date Oct 6, 2006
Last updated in NPPES Jul 26, 2018

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OT011570 (PA) Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 34.010643 (OH) Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License OS014317 (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

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

What specialty is Mark Kropinak?
Mark Kropinak is registered in NPPES with the primary taxonomy of Ophthalmology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-26.