Active NPI
Kellen Rene Fessler, CNP
- Acute Care Nurse Practitioner
- Columbus, OH
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Acute Care Nurse Practitioner
- License
- 437535
- Practice address
- 3400 Olentangy River Rd
Columbus, OH 43202-1523 - Phone
- (614) 754-5500
- Fax
- (614) 754-5501
- NPI assigned
- Jan 10, 2022
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Acute Care Nurse Practitioner | 363LA2100X | 437535 | OH | Primary |
Addresses
Primary practice location
3400 Olentangy River Rd
Columbus, OH 43202-1523
Mailing address
3400 Olentangy River Rd
Columbus, OH 43202-1523
Phone (614) 754-5500
Other practice location 1
272 Hospital Rd
Chillicothe, OH 45601-9031
Phone (740) 779-8575
Other practice location 2
3535 Olentangy River Rd
Columbus, OH 43214-3908
Phone (614) 566-5000
Other practice location 3
111 S Grant Ave
Columbus, OH 43215-4701
Phone (614) 566-9550
Electronic endpoints 4
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | kfessler927664@direct.ohiohealth.com | OhioHealth Physician Group, Inc. | |
| Direct Messaging Address | ohiogastro@directaddress.net | Direct | |
| CONNECT URL | Columbus | Health Information Exchange (HIE) | |
| Direct Messaging Address | adena.pulm@adena.medicity.net |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OH
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20220225002088 | OH | Practitioner - Nurse Practitioner | 9537553011 | Reassigns benefits to 6 organizations |
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Usacs Critical Care Medicine Services of Ohio, LLCOhio Gastroenterology Group, Inc.Ohiohealth Corporation
Practice addresses (Care Compare)
100 Medical Ctr Dr
Springfield, OH 45504-2687
Phone (937) 523-1461
3400 Olentangy River Rd
Columbus, OH 43202-1576
Phone (614) 754-5500
3535 Olentangy River Rd
Columbus, OH 43214-3908
Phone (614) 566-2934
Hospital & facility affiliations
- Riverside Methodist Hospital
- Mount Carmel East & West
- Springfield Regional Medical Center
- Doctors Hospital
- Dublin Methodist Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 80.04 of 100
- Quality
- 58.67
- Promoting interoperability
- 98
- Improvement activities
- 40
- Cost
- 76.46
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Certified Nurse Practitioner, Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 437535 | OH | MD | Acute Care Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Adena Medical Group LLC | Current | Accepting new patients | |
| Usacs Critical Care Medicine Services of Ohio, LLC | Current | Accepting new patients | |
| Ohiohealth Corporation | Current | Accepting new patients | |
| Hospital Medicine Services of Ohio, Inc. | Current | Accepting new patients | |
| Usacs Integrated Acute Care Services of Ohio, LLC | Current | Accepting new patients | |
| Ohiohealth Corporation | Current | Accepting new patients | |
| Ohio Gastroenterology Group, Inc. | Past | Accepting new patients |
Locations
272 Hospital Rd
Chillicothe, OH 45601
Phone (740) 779-4275
3535 Olentangy River Rd
Columbus, OH 43214
Phone (614) 566-1997
393 E Town St
Ste 116
Columbus, OH 43215
Phone (614) 566-9108
111 S Grant Ave
Columbus, OH 43215
Phone (614) 461-3232
Dept L3652
Columbus, OH 43260
100 Medical Center Dr
Springfield, OH 45504
Phone (937) 523-1000
45 St Lawrence Dr
Tiffin, OH 44883
Phone (419) 448-1900
12340 State Route 104
Waverly, OH 45690
Phone (740) 941-5180
Interoperability endpoints
- kfessler2468436@direct.bsmhealth.org
- kfessler1143336@direct.trinity-health.org
Organizations & group practices 7
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.
-
- Critical Care Medicine (Internal Medicine) Physician
- Springfield, OH
- NPI 1104560580
OH
-
- Internal Medicine Physician
- Springfield, OH
- NPI 1043805690
OH
-
- Anesthesiology Physician
- Columbus, OH
- NPI 1407292105
Hospital & facility affiliations 8
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": "1641772800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1777334400000",
"number": "1093466252",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3400 OLENTANGY RIVER RD",
"city": "COLUMBUS",
"state": "OH",
"postal_code": "432021523",
"telephone_number": "614-754-5500",
"fax_number": "614-754-5501"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3400 OLENTANGY RIVER RD",
"city": "COLUMBUS",
"state": "OH",
"postal_code": "432021523",
"telephone_number": "614-754-5500",
"fax_number": "614-754-5501"
}
],
"practiceLocations": [
{
"address_1": "272 Hospital Rd",
"address_purpose": "LOCATION",
"city": "Chillicothe",
"state": "OH",
"postal_code": "456019031",
"country_code": "US",
"telephone_number": "740-779-8575",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "3535 Olentangy River Rd",
"address_purpose": "LOCATION",
"city": "Columbus",
"state": "OH",
"postal_code": "432143908",
"country_code": "US",
"telephone_number": "614-566-5000",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "111 S Grant Ave",
"address_purpose": "LOCATION",
"city": "Columbus",
"state": "OH",
"postal_code": "432154701",
"country_code": "US",
"telephone_number": "614-566-9550",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "FESSLER",
"first_name": "KELLEN",
"middle_name": "RENE",
"credential": "CNP",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2022-01-10",
"last_updated": "2026-04-28",
"certification_date": "2026-04-28",
"status": "A"
},
"taxonomies": [
{
"code": "363LA2100X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Acute Care",
"state": "OH",
"license": "437535",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "kfessler927664@direct.ohiohealth.com",
"affiliation": "Y",
"affiliationName": "OhioHealth Physician Group, Inc.",
"address_1": "3535 Olentangy River Rd",
"city": "Columbus",
"state": "OH",
"country_code": "US",
"postal_code": "432143908",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "ohiogastro@directaddress.net",
"affiliation": "N",
"endpointDescription": "Direct",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "3400 Olentangy River Rd",
"city": "Columbus",
"state": "OH",
"country_code": "US",
"postal_code": "432021523",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "CONNECT",
"endpointTypeDescription": "CONNECT URL",
"endpoint": "Columbus",
"affiliation": "N",
"endpointDescription": "Hospital",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "6001 E Broad St",
"city": "Columbus",
"state": "OH",
"country_code": "US",
"postal_code": "432131502",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "adena.pulm@adena.medicity.net",
"affiliation": "N",
"address_1": "272 Hospital Rd",
"city": "Chillicothe",
"state": "OH",
"country_code": "US",
"postal_code": "456019031",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Columbus, OH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 28, 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.