Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Nickolas Pappas, M.D.

Vascular & Interventional Radiology Physician in Cumberland, MD · enumerated 2006.

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

National Provider Identifier

1952340598

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Registry record

Entity type Individual (Type 1)

Name Dr. John Nickolas Pappas

Credential M.D.

Sex Male

Practice address 12500 Willowbrook Rd, Cumberland, MD, 21502

Phone (240) 964-1036

Fax (240) 964-1048

Enumeration date Jun 6, 2006

Last updated in NPPES Aug 22, 2024

Taxonomy & licenses

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License D61124 (MD) Primary

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License D61124 (MD) Secondary

2085D0003X Diagnostic Neuroimaging (Radiology) Physician Allopathic & Osteopathic Physicians · License D61124 (MD) Secondary

2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License D61124 (MD) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License D61124 (MD) Secondary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License D61124 (MD) Secondary

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
P00109544	Other	MD	RAILROAD MEDICARE
394340201	Medicaid	MD	-

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

How do I verify John Pappas's NPI record?

Cross-check NPI 1952340598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952340598 active?

Yes, as of the latest NPPES snapshot, NPI 1952340598 is active (record last updated 2024-08-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-22.