Individual provider Active NPI

Katherine McGrath, DO

  • Internal Medicine Physician
  • Indianapolis, IN
National Provider Identifier
1649807660
Registry record updated Mar 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
02007226A Issued in IN
Practice address
8333 Naab Rd Ste 420
Indianapolis, IN 46260-1992
Phone
(317) 338-6666
NPI assigned
Mar 27, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 02007226A IN Primary

Addresses

Primary practice location

8333 Naab Rd Ste 420
Indianapolis, IN 46260-1992

Mailing address

8333 Naab Rd Ste 420
Indianapolis, IN 46260-1992

Other practice location 1

8414 Naab Rd
Indianapolis, IN 46260-1972
Phone (317) 338-7510

Other practice location 2

8414 Naab Rd Ste 100
Indianapolis, IN 46260-1972
Phone (317) 338-7510

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address katherine.mcgrath@direct.aultman.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN, OH2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230711000522 IN Practitioner - Internal Medicine 5193149615 Reassigns benefits to 1 organization
I20260224000464 OH Practitioner - Internal Medicine 5193149615 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Marian University College of Osteopathic Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Ohio Physician Professional CorporationGroup PAC ID 2668406059, 143 clinicians

Practice addresses (Care Compare)

2600 6TH SWST
Canton, OH 44710-1702
Phone (330) 363-2180

Hospital & facility affiliations

  • Aultman Hospital Hospital, Canton, OH, CCN 360084

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
02007226AINMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Ohio Physician Professional Corporation Internal Medicine CurrentSince Mar 1, 2026 Accepting new patients
Aultman Hospital Past Accepting new patients

Locations

2600 6th St SW
#6
Canton, OH 44710

2600 6th St SW
Canton, OH 44710
Phone (330) 363-2180

Interoperability endpoints

  • Direct secure messaging: katherine.mcgrath@direct.aultman.org

Organizations & group practices 3

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

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1585267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772755200000",
    "number": "1649807660",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8333 NAAB RD STE 420",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462601992"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8333 NAAB RD STE 420",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462601992",
            "telephone_number": "317-338-6666"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8414 Naab Rd",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462601972",
            "country_code": "US",
            "telephone_number": "317-338-7510",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8414 Naab Rd Ste 100",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462601972",
            "country_code": "US",
            "telephone_number": "317-338-7510",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCGRATH",
        "first_name": "KATHERINE",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-27",
        "last_updated": "2026-03-06",
        "certification_date": "2026-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IN",
            "license": "02007226A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "katherine.mcgrath@direct.aultman.org",
            "affiliation": "N",
            "endpointDescription": "Direct address via employer",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "2600 6th St SW",
            "city": "Canton",
            "state": "OH",
            "country_code": "US",
            "postal_code": "447101702",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.