Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark A. Zelkovic, MD

Surgery Physician in Greensburg, PA · enumerated 2005.

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

National Provider Identifier

1548267198

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mark A. Zelkovic

Credential MD

Sex Male

Practice address 530 South St, Suite 300, Greensburg, PA, 15601

Phone (724) 850-3142

Fax (724) 850-3143

Enumeration date Jun 28, 2005

Last updated in NPPES Apr 4, 2017

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD045350 (PA) 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
0016352460002	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mark Zelkovic?

The National Provider Identifier (NPI) for Mark Zelkovic is 1548267198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Zelkovic practice?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-04.