Individual provider Active NPI

Mark E Fons, DO

  • Anatomic Pathology & Clinical Pathology Physician
  • Columbus, IN
National Provider Identifier
1699863647
Registry record updated Aug 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X
License
02003994A Issued in IN
Practice address
2400 17TH St
Columbus, IN 47201-5351
Phone
(812) 418-0014
NPI assigned
Oct 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 3, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X 02003994A IN Primary
Cytopathology Physician 207ZC0500X 02003994A IN

Addresses

Primary practice location

2400 17TH St
Columbus, IN 47201-5351

Mailing address

PO Box 1329
Columbus, IN 47202-1329
Phone (812) 336-6821

Other practice location 1

520 S 7th St
Vincennes, IN 47591-1038
Phone (812) 882-5220

Other practice location 2

4935 W Arlington Rd
Bloomington, IN 47404-1187
Phone (812) 353-9435

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address MFONS@DIRECT.IUHEALTH.ORG Direct
Direct Messaging Address mfons@direct.iuhealth.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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 1

Enrollment IDStateProvider typePAC IDDetails
I20120622000116 IN Practitioner - Pathology 3274798384 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pathology
Education
Other, 2006
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
South Central Indiana Pathology, PCGroup PAC ID 7618037805, 7 clinicians
Southern Indiana PathologistsGroup PAC ID 5395776231, 5 clinicians
Iu Health Medical Group Riley Specialists LLCGroup PAC ID 9638669815, 285 clinicians

Practice addresses (Care Compare)

2400 17TH St
Columbus, IN 47201-5351
Phone (812) 418-0014

2651 E Discovery Pkwy
Bloomington, IN 47408-9059
Phone (812) 918-3336

705 Riley Hospital Dr
Indianapolis, IN 46202-5109
Phone (888) 484-3258

Hospital & facility affiliations

  • Indiana University Health Bloomington Hospital Hospital, Bloomington, IN, CCN 150051
  • Columbus Regional Hospital Hospital, Columbus, IN, CCN 150112
  • Indiana University Health Bedford Hospital Hospital, Bedford, IN, CCN 151328
  • Indiana University Health Hospital, Indianapolis, IN, CCN 150056
  • Indiana University Health Paoli Hospital Hospital, Paoli, IN, CCN 151306

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
02003994AINMDAnatomic Pathology & Clinical Pathology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Indiana University Health Bloomington Inc CurrentSince Apr 8, 2019 Accepting new patients
Iu Health Medical Group Riley Specialists, LLC CurrentSince Jan 1, 2026 Accepting new patients
Southern Indiana Pathologists Anatomic Pathology & Clinical Pathology CurrentSince Jul 1, 2012 Accepting new patients
Indiana University Health Bloomington Inc Anatomic Pathology & Clinical Pathology CurrentSince Apr 8, 2019 Accepting new patients

Locations

7987 Solution Ctr
Chicago, IL 60677

2651 E Discovery Pkwy
Bloomington, IN 47408
Phone (812) 353-9147

601 W 2nd St
Bloomington, IN 47403
Phone (812) 353-5252

250 N Shadeland Ave
Indianapolis, IN 46219
Phone (317) 948-9174

714 N Senate Ave
Ste 130
Indianapolis, IN 46202
Phone (317) 963-5582

705 Riley Hospital Dr
Indianapolis, IN 46202
Phone (317) 274-4779

5700 Southwyck Blvd
Toledo, OH 43614

Interoperability endpoints

  • Direct secure messaging: mfons@direct.iuhealth.org

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 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": "1160524800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785715200000",
    "number": "1699863647",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1329",
            "city": "COLUMBUS",
            "state": "IN",
            "postal_code": "472021329",
            "telephone_number": "812-336-6821"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2400 17TH ST",
            "city": "COLUMBUS",
            "state": "IN",
            "postal_code": "472015351",
            "telephone_number": "812-418-0014"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "520 S 7th St",
            "address_purpose": "LOCATION",
            "city": "Vincennes",
            "state": "IN",
            "postal_code": "475911038",
            "country_code": "US",
            "telephone_number": "812-882-5220",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4935 W Arlington Rd",
            "address_purpose": "LOCATION",
            "city": "Bloomington",
            "state": "IN",
            "postal_code": "474041187",
            "country_code": "US",
            "telephone_number": "812-353-9435",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FONS",
        "first_name": "MARK",
        "middle_name": "E",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-11",
        "last_updated": "2026-08-03",
        "certification_date": "2026-08-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "IN",
            "license": "02003994A",
            "primary": true
        },
        {
            "code": "207ZC0500X",
            "taxonomy_group": "",
            "desc": "Pathology, Cytopathology",
            "state": "IN",
            "license": "02003994A",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "MFONS@DIRECT.IUHEALTH.ORG",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "4935 W Arlington Rd",
            "city": "Bloomington",
            "state": "IN",
            "country_code": "US",
            "postal_code": "474041187",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mfons@direct.iuhealth.org",
            "affiliation": "N",
            "address_1": "601 West Second Street",
            "city": "Bloomington",
            "state": "IN",
            "country_code": "US",
            "postal_code": "474022317",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Columbus, IN

Sources for this page

Verify at the official NPI Registry.