Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John L. Mccormack, MD

Diagnostic Radiology Physician in Newark, DE · enumerated 2006.

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

National Provider Identifier

1750341780

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Registry record

Entity type Individual (Type 1)

Name John L. Mccormack

Credential MD

Sex Male

Practice address 4755 Ogletown Stanton Rd, Department of Radiology, Newark, DE, 19718

Phone (302) 733-1806

Fax (302) 733-1808

Enumeration date Mar 24, 2006

Last updated in NPPES Nov 13, 2017

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License C1-0002800 (DE) Primary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD034535E (PA) 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
0000111601	Medicaid	DE	-
300074167	Other	-	RAILROAD MEDICARE #

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 is the NPI number for John Mccormack?

The National Provider Identifier (NPI) for John Mccormack is 1750341780, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Mccormack practice?

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

Other providers at this practice address

Browse all →

Erik Marshall Cardiovascular Disease Physician · Newark, DE NPI 1144223850 Cynthia Flynn Anatomic Pathology & Clinical Pathology Physician · Newark, DE NPI 1336145861 Mary Iacocca Anatomic Pathology & Clinical Pathology Physician · Newark, DE NPI 1689670119 Michael Kanzer Anatomic Pathology & Clinical Pathology Physician · Newark, DE NPI 1194721639 Gary Witkin Anatomic Pathology & Clinical Pathology Physician · Newark, DE NPI 1396741849 Mark Mitchell Anatomic Pathology & Clinical Pathology Physician · Newark, DE NPI 1487650594 William Kirby Anatomic Pathology & Clinical Pathology Physician · Newark, DE NPI 1265438360 Rebecca Yourinson Physician Assistant · Newark, DE NPI 1104825579

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-13.