Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregg R Mattison, M.D.

Diagnostic Radiology Physician in Fort Wayne, IN · enumerated 2006.

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

National Provider Identifier

1023062130

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Gregg R Mattison

Credential M.D.

Sex Male

Practice address 3707 New Vision Drive, Fort Wayne, IN, 46895

Phone (260) 471-9466

Fax (260) 484-5919

Enumeration date May 22, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 35188 (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
000000092615	Other	IN	ANTHEM
2100630	Medicaid	OH	-
4074924100	Medicaid	MI	-
1554	Other	IN	PHP

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 → Validate an NPI →

Frequently asked questions

How do I verify Gregg Mattison's NPI record?

Cross-check NPI 1023062130 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023062130 active?

Yes, as of the latest NPPES snapshot, NPI 1023062130 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.