NPI Portal NPI Lookup & Verification

John M Mathis, MD

John M Mathis is a Diagnostic Radiology Physician provider (Radiology) practicing in Roanoke, VA, registered in the NPPES registry with NPI 1336185107 since 2006. The credential MD stands for Doctor of Medicine. Practices at Center for Surgical Excellence LLC (listed at the same practice address in NPPES).

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NPI 1336185107
Entity type Individual (Type 1)
Name John M Mathis
Credential MD
Sex Male
Practice address 2107 ROSALIND AVE SW, Roanoke, VA, 24014
Phone 5409046170
Enumeration date 2006-06-21
Last updated in NPPES 2007-12-13

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2085R0202X Diagnostic Radiology Physician Primary 0101033765 VA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: John Mathis, MD
NPI: 1336185107
Taxonomy: 2085R0202X (Diagnostic Radiology Physician)
Address: 2107 ROSALIND AVE SW, Roanoke, VA, 24014

Other providers at this practice address

NPI Name Type Specialty Location
1902847635 Center for Surgical Excellence LLC Organization Ambulatory Surgical Clinic/Center Roanoke, VA
1265476659 Robert Obrien Individual Diagnostic Radiology Physician Roanoke, VA

Verify this record

Cross-check NPI 1336185107 against the authoritative CMS record: view John M Mathis on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

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.
What specialty is John Mathis?
John Mathis is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-12-13.