Active NPI
Isaac Keller
- Counselor
- Martins Ferry, OH
National Provider Identifier
1538068416
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Counselor
- Practice address
- 301 Walnut St
Martins Ferry, OH 43935-1429 - Phone
- (740) 633-2161
- Fax
- (740) 633-1681
- NPI assigned
- Nov 5, 2026
- Last updated
- Nov 5, 2026
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Counselor | 101Y00000X | Primary |
Addresses
Primary practice location
301 Walnut St
Martins Ferry, OH 43935-1429
Mailing address
16 W Long St
Columbus, OH 43215-2815
Phone (614) 225-0990
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1793836800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1793836800000",
"number": "1538068416",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "16 W LONG ST",
"city": "COLUMBUS",
"state": "OH",
"postal_code": "432152815",
"telephone_number": "614-225-0990",
"fax_number": "614-225-0991"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "301 WALNUT ST",
"city": "MARTINS FERRY",
"state": "OH",
"postal_code": "439351429",
"telephone_number": "740-633-2161",
"fax_number": "740-633-1681"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KELLER",
"first_name": "ISAAC",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2026-11-05",
"last_updated": "2026-11-05",
"certification_date": "2026-11-05",
"status": "A"
},
"taxonomies": [
{
"code": "101Y00000X",
"taxonomy_group": "",
"desc": "Counselor",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Martins Ferry, OH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.