Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John P Katsaropoulos, MD

Interventional Cardiology Physician in Indianapolis, IN · enumerated 2005.

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

National Provider Identifier

1063419968

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Registry record

Entity type Individual (Type 1)

Name Dr. John P Katsaropoulos

Credential MD

Sex Male

Practice address 5330 E Stop 11 Rd, Indianapolis, IN, 46237

Phone (317) 893-1900

Fax (317) 893-1901

Enumeration date Jul 7, 2005

Last updated in NPPES Nov 5, 2024

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 01041586A (IN) Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 01045186A (IN) 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
100474520	Medicaid	IN	-

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 John Katsaropoulos?

John Katsaropoulos is registered in NPPES with the primary taxonomy of Interventional Cardiology 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 2024-11-05.