NPIMap

Individual provider Active NPI

Alex Ritter

  • Radiation Oncology Physician
  • Marion, OH
National Provider Identifier
1336608421
Registry record updated Aug 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
35.154707 Issued in OH
Practice address
1000 McKinley Park Dr
Marion, OH 43302-6399
Phone
(740) 375-2275
NPI assigned
Mar 18, 2019
Last updated
Aug 27, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 27, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 35.154707 OH Primary

Addresses

Primary practice location

1000 McKinley Park Dr
Marion, OH 43302-6399

Mailing address

PO Box 7527
Dublin, OH 43017-0727
Phone (614) 788-6010

Other practice location 1

801 OhioHealth Blvd
Ste 180
Delaware, OH 43015
Phone (740) 615-0227

Electronic endpoints 3

TypeEndpointUseAffiliation
Direct Messaging Address aritter1437802@direct.ohiohealth.com Direct OhioHealth Corporation
Direct Messaging Address aritter1437802@direct.ohiohealth.com Direct Marion Area Physicians LLC
Direct Messaging Address aritter1437802@direct.ohiohealth.com Direct OhioHealth Physician Group, Inc.

Medicare participation

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

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20240917004876 WV Practitioner - Radiation Oncology 8022434620 Reassigns benefits to 1 organization
I20251014001922 OH Practitioner - Radiation Oncology 8022434620 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Ohiohealth CorporationGroup PAC ID 6305758426, 2,295 clinicians

Practice addresses (Care Compare)

1 Medical Ctr Dr
Morgantown, WV 26506-1200
Phone (304) 293-4500

801 Ohio Health Blvd
Suite 180
Delaware, OH 43015-7883
Phone (740) 615-0232

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
95.34 of 100Reported as apm
Quality
79.86
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
33857WVMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
West Virginia University Medical Corporation CurrentSince Jun 25, 2024 Accepting new patients
West Virginia University Medical Corporation CurrentSince Jun 25, 2024 Accepting new patients
Ohiohealth Corporation CurrentSince Sep 25, 2025 Accepting new patients
Ohiohealth Corporation CurrentSince Sep 25, 2025 Accepting new patients
Marion Area Physicians LLC CurrentSince Oct 1, 2025 Accepting new patients

Locations

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

Dept L3652
Columbus, OH 43260

801 Ohio Health Blvd
Ste 180
Delaware, OH 43015
Phone (740) 615-0227

1000 McKinley Park Dr
Marion, OH 43302
Phone (740) 383-8400

1040 Delaware Ave
Marion, OH 43302
Phone (330) 256-9874

1 Medical Center Dr
Morgantown, WV 26506
Phone (304) 293-4500

Organizations & group practices 5

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.

Hospital & facility affiliations 7

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": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787788800000",
    "number": "1336608421",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7527",
            "city": "DUBLIN",
            "state": "OH",
            "postal_code": "430170727",
            "telephone_number": "614-788-6010"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 MCKINLEY PARK DR",
            "city": "MARION",
            "state": "OH",
            "postal_code": "433026399",
            "telephone_number": "740-375-2275"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "801 OhioHealth Blvd",
            "address_2": "Ste 180",
            "address_purpose": "LOCATION",
            "city": "Delaware",
            "state": "OH",
            "postal_code": "43015",
            "country_code": "US",
            "telephone_number": "740-615-0227",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RITTER",
        "first_name": "ALEX",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-18",
        "last_updated": "2026-08-27",
        "certification_date": "2026-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "OH",
            "license": "35.154707",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aritter1437802@direct.ohiohealth.com",
            "affiliation": "Y",
            "endpointDescription": "OhioHealth Corporation",
            "affiliationName": "OhioHealth Corporation",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1000 McKinley Park Dr",
            "city": "Marion",
            "state": "OH",
            "country_code": "US",
            "postal_code": "433026399",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aritter1437802@direct.ohiohealth.com",
            "affiliation": "Y",
            "affiliationName": "Marion Area Physicians LLC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1000 McKinley Park Dr",
            "city": "Marion",
            "state": "OH",
            "country_code": "US",
            "postal_code": "433026399",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aritter1437802@direct.ohiohealth.com",
            "affiliation": "Y",
            "affiliationName": "OhioHealth Physician Group, Inc.",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1000 McKinley Park Dr",
            "city": "Marion",
            "state": "OH",
            "country_code": "US",
            "postal_code": "433026399",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Marion, OH

Sources for this page

Verify at the official NPI Registry.