NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John C Callahan, M. D.

Family Medicine Physician in Aurora, NC · enumerated 2006.

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

National Provider Identifier

1609988393

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Registry record

Entity type Individual (Type 1)
Name Dr. John C Callahan
Credential M. D.
Sex Male
Practice address Aurora, NC, 27806
Phone (252) 322-4021
Fax (252) 322-5088
Enumeration date Aug 31, 2006
Last updated in NPPES Aug 4, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 9701709 (NC) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does John Callahan practice?
The practice location on file with NPPES is in Aurora, NC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Callahan?
The National Provider Identifier (NPI) for John Callahan is 1609988393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-04.