Gregg R Mattison, M.D.

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

35188 Issued in IN

Practice address

3707 New Vision Drive
Fort Wayne, IN 46895-5602

Phone

(260) 471-9466

Fax

(260) 484-5919

NPI assigned

May 22, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 4

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: gmattison@yourcarecommunity.org
• Direct secure messaging: grmattison@direct.iuhealth.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Breast Diagnostic Center, LLC

  dba Breast Diagnostic Screening Center, LLC

  • Diagnostic Radiology Physician
  • Fort Wayne, IN
  • NPI 1790748499
  NPD (past)
• Indiana Physical Therapy, Inc

  • Physical Therapy Clinic/Center
  • Bluffton, IN
  • NPI 1629110192
  NPD (past)
• MRI Center - Fort Wayne Radiology Inc

  • Diagnostic Radiology Physician
  • Fort Wayne, IN
  • NPI 1922061613
  NPD (past)
• Parkview Hospital Inc.

  dba Parkview Home Infusion Services

  • Home Infusion Agency
  • Fort Wayne, IN
  • NPI 1780680942
  NPD (past)
• Summit Radiology P C

  • Diagnostic Radiology Physician
  • Fort Wayne, IN
  • NPI 1073584587
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1148256000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1023062130",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2200 RANDALLIA DR",
            "city": "FORT WAYNE",
            "state": "IN",
            "postal_code": "468054638",
            "telephone_number": "260-373-4731"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3707 NEW VISION DRIVE",
            "city": "FORT WAYNE",
            "state": "IN",
            "postal_code": "468955602",
            "telephone_number": "260-471-9466",
            "fax_number": "260-484-5919"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATTISON",
        "first_name": "GREGG",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-22",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "IN",
            "license": "35188",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2100630",
            "state": "OH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4074924100",
            "state": "MI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PHP",
            "identifier": "1554",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM",
            "identifier": "000000092615",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Matthew 25, Inc
• Justin Matthew
• Ashley Matthews
• David N. Matthews, DDS MS
• Melisa Ann Matthews
• Joseph M Mattox, MD
• Scott E. Mattson, DO
• Caroline Matvya
• Gretchen Maty
• Jamie A Matz, NP

• Diagnostic Radiology Physician in Fort Wayne, IN
• Providers in Fort Wayne, IN by specialty
• Diagnostic Radiology Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.