Active NPI
Mark E Fons, DO
- Anatomic Pathology & Clinical Pathology Physician
- Columbus, IN
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anatomic Pathology & Clinical Pathology Physician
- License
- 02003994A
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| 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, PCSouthern Indiana PathologistsIu Health Medical Group Riley Specialists LLC
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
- Columbus Regional Hospital
- Indiana University Health Bedford Hospital
- Indiana University Health
- Indiana University Health Paoli Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 02003994A | IN | MD | Anatomic Pathology & Clinical Pathology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Indiana University Health Bloomington Inc | Current | Accepting new patients | |
| Iu Health Medical Group Riley Specialists, LLC | Current | Accepting new patients | |
| Southern Indiana Pathologists | Anatomic Pathology & Clinical Pathology | Current | Accepting new patients |
| Indiana University Health Bloomington Inc | Anatomic Pathology & Clinical Pathology | Current | 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
- 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.
-
- Pediatrics Physician
- Indianapolis, IN
- NPI 1699561480
IN
-
- Anatomic Pathology & Clinical Pathology Physician
- Bloomington, IN
- NPI 1447235619
Anatomic Pathology & Clinical Pathology, IN
-
- Anatomic Pathology & Clinical Pathology Physician
- Columbus, IN
- NPI 1194813154
IN
-
- Psychiatry Physician
- Bloomington, IN
- NPI 1871519074
Anatomic Pathology & Clinical Pathology
-
- Community/Retail Pharmacy
- Bloomington, IN
- NPI 1922640077
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Bloomington, IN
- NPI 1205860335
Hospital
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.