NPIMap

Individual provider Active NPI

Katherine Rebecca Exten, M.D.

  • Hematology & Oncology Physician
  • Mansfield, OH
National Provider Identifier
1982996237
Registry record updated Jan 25, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
35131800 Issued in OH
Practice address
335 Glessner Ave
Mansfield, OH 44903-2269
Phone
(419) 756-2003
NPI assigned
May 4, 2011
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 25, 2022

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 036.134806 IL
Student in an Organized Health Care Education/Training Program 390200000X
Hematology & Oncology Physician 207RH0003X 35131800 OH Primary

Addresses

Primary practice location

335 Glessner Ave
Mansfield, OH 44903-2269

Mailing address

840 S Wood St Ste 820-E
Chicago, IL 60612-4325

Other identifiers 1

IdentifierTypeStateIssuer
0233087MedicaidOH

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address kexten220998@direct.ohiohealth.com OhioHealth Physician Group

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20170731003033 OH Practitioner - Medical OncologyPractitioner - Hematology/Oncology 2365683893 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical Oncology
Education
Ohio State University College of Medicine, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
American Oncology Partners PAGroup PAC ID 0042569758, 377 clinicians

Practice addresses (Care Compare)

3100 Plaza Properties Blvd
Columbus, OH 43219-1530
Phone (614) 383-6000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
80.04 of 100Reported as group
Quality
58.67
Promoting interoperability
98
Improvement activities
40
Cost
76.46

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036.134806ILMDInternal Medicine Physician
35131800OHMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
American Oncology Partners PA Hematology & Oncology CurrentSince Nov 11, 2024 Accepting new patients
Ohiohealth Corporation CurrentSince Jan 1, 2021 Accepting new patients
Ohiohealth Corporation Internal Medicine CurrentSince Jan 1, 2021 Accepting new patients
Mount Carmel Health System Internal Medicine CurrentSince Sep 25, 2025 Accepting new patients
Mount Carmel Health System CurrentSince Sep 25, 2025 Accepting new patients
Mount Carmel Health Internal Medicine Past Accepting new patients

Locations

393 E Town St
Ste 116
Columbus, OH 43215
Phone (614) 566-9108

3100 Plaza Properties Blvd
Columbus, OH 43219
Phone (614) 383-6000

Dept L3652
Columbus, OH 43260

5300 N Meadows Dr
Ste 1900
Grove City, OH 43123
Phone (614) 663-2450

335 Glessner Ave
Mansfield, OH 44903
Phone (419) 522-0320

477 Cooper Rd
Ste 300
Westerville, OH 43081
Phone (614) 898-8808

400 Altair Pkwy
Ste 3300
Westerville, OH 43082
Phone (614) 383-6000

Organizations & group practices 6

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 6

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": "1304467200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1643068800000",
    "number": "1982996237",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 S WOOD ST STE 820-E",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606124325"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "335 GLESSNER AVE",
            "city": "MANSFIELD",
            "state": "OH",
            "postal_code": "449032269",
            "telephone_number": "419-756-2003"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "EXTEN",
        "first_name": "KATHERINE",
        "middle_name": "REBECCA",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-05-04",
        "last_updated": "2022-01-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036.134806",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "OH",
            "license": "35131800",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0233087",
            "state": "OH"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kexten220998@direct.ohiohealth.com",
            "affiliation": "Y",
            "affiliationName": "OhioHealth Physician Group",
            "address_1": "335 Glessner Ave",
            "city": "Mansfield",
            "state": "OH",
            "country_code": "US",
            "postal_code": "449032269",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Mansfield, OH

Sources for this page

Verify at the official NPI Registry.