Active NPI
Christopher Michael Yost, M.D.
- Internal Medicine Physician
- Hazard, KY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 46965
- Practice address
- 181 Roy Campbell Dr
Hazard, KY 41701-9407 - Phone
- (606) 439-1316
- Fax
- (606) 439-8457
- NPI assigned
- May 15, 2011
- Last updated
- Aug 4, 2026
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 46965 | KY | Primary |
Addresses
Primary practice location
181 Roy Campbell Dr
Hazard, KY 41701-9407
Mailing address
181 Roy Campbell Dr
Hazard, KY 41701-9407
Phone (606) 439-1316
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 7100291110 | Medicaid | KY |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | christopheryost@arh.medalliesdirect.net | Direct |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in KY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- University of Kentucky College of Medicine, 2011
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
431 Redding Rd
Suite 140
Lexington, KY 40517-2551
Phone (859) 226-2500
Hospital & facility affiliations
- Middlesboro Arh Hospital
- Hazard Arh Regional Medical Center
- Highlands Arh Regional Medical Center
- Arh Our Lady of the Way
- Beckley Arh Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 83.57 of 100
- Quality
- 50.32
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Arh Mary Breckinridge Health Services, Inc. | Current | Accepting new patients | |
| Appalachian Regional Healthcare, Inc. | Current | Accepting new patients | |
| Kentucky Medical Services Foundation, Inc | Internal Medicine | Current | Accepting new patients |
| Appalachian Regional Healthcare, Inc | Current | Accepting new patients | |
| Appalachian Regional Healthcare, Inc | Current | Accepting new patients | |
| Arh Mary Breckinridge Health Services, Inc. | Current | Accepting new patients | |
| Arh Mary Breckinridge Health Services, Inc. | Internal Medicine | Current | Accepting new patients |
| Arh Mary Breckinridge Health Services, Inc. | Past | Accepting new patients | |
| Arh Mary Breckinridge Health Services, Inc. | Past | Accepting new patients | |
| Flat Lick Medical Clinic PLLC | Past | Accepting new patients |
Locations
80 Hospital Dr
#2
Barbourville, KY 40906
Phone (606) 545-4460
100 Airport Gardens Rd
Ste 311
Hazard, KY 41701
Phone (606) 439-6978
181 Roy Campbell Dr
Hazard, KY 41701
Phone (606) 439-1316
200 Medical Dr
Hazard, KY 41701
Phone (606) 439-5057
2400 Greatstone Pt
Lexington, KY 40504
Phone (859) 257-9800
431 Redding Rd
Ste 140
Lexington, KY 40517
Phone (859) 226-2500
Interoperability endpoints
- christopheryost@arh.medalliesdirect.net
- cyost15333@ukhcdirect.org
Organizations & group practices 11
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.
-
dba ARH Cumberland Valley Medical and Surgical Associates - Corbin
- Multi-Specialty Clinic/Center
- Corbin, KY
- NPI 1053983908
-
- Internal Medicine Physician
- Lexington, KY
- NPI 1326091448
-
- Clinical Pathology/Laboratory Medicine Physician
- Whitesburg, KY
- NPI 1417045998
-
dba ARH Tri-Cities Clinic Pharmacy
- Community/Retail Pharmacy
- Cumberland, KY
- NPI 1710870811
-
dba Hazard ARH Regional Medical Center
- Anatomic Pathology & Clinical Pathology Physician
- Hazard, KY
- NPI 1780728881
-
dba ARH Cardiology Associates - Hazard
- Cardiovascular Disease Physician
- Hazard, KY
- NPI 1225380389
-
dba Mary Breckinridge ARH Hospital
- Anatomic Pathology & Clinical Pathology Physician
- Hyden, KY
- NPI 1962040758
-
dba ARH Cumberland Valley Medical and Surgical Associates
- Rural Health Clinic/Center
- Middlesboro, KY
- NPI 1962908277
Internal Medicine
-
dba ARH Cumberland Valley Medical and Surgical Associates
- Diagnostic Radiology Physician
- Barbourville, KY
- NPI 1184156036
-
dba ARH Medical Associates
- Multi-Specialty Clinic/Center
- Lexington, KY
- NPI 1740900075
-
- Rural Health Clinic/Center
- Flat Lick, KY
- NPI 1750317491
Hospital & facility affiliations 10
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba ARH Specialty Associates - Middlesboro
- Multi-Specialty Clinic/Center
- Middlesboro, KY
- NPI 1801403092
Hospital
-
dba Arh Hazard Family Health Services
- Multi-Specialty Clinic/Center
- Hazard, KY
- NPI 1558431346
Hospital
-
dba Hazard ARH Regional Medical Center
- General Acute Care Hospital
- Hazard, KY
- NPI 1609869916
-
dba Middlesboro ARH Hospital
- General Acute Care Hospital
- Middlesboro, KY
- NPI 1891792495
-
dba ARH Middlesboro Internal Medicine Clinic
- Internal Medicine Physician
- Middlesboro, KY
- NPI 1932415882
Hospital
-
dba ARH Our Lady of the Way
- Critical Access Hospital
- Martin, KY
- NPI 1306339460
-
dba Highlands ARH Regional Medical Center
- General Acute Care Hospital
- Prestonsburg, KY
- NPI 1043878325
-
dba ARH Medical and Surgical Associates - Highlands
- Multi-Specialty Clinic/Center
- Prestonsburg, KY
- NPI 1700445319
Hospital
-
dba ARH Southern West Virginia Clinic
- Family Medicine Physician
- Beckley, WV
- NPI 1477510162
Hospital
-
dba Beckley ARH Hospital
- General Acute Care Hospital
- Beckley, WV
- NPI 1568461440
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1305417600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785801600000",
"number": "1467744086",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "181 ROY CAMPBELL DR",
"city": "HAZARD",
"state": "KY",
"postal_code": "417019407",
"telephone_number": "606-439-1316",
"fax_number": "606-439-8457"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "181 ROY CAMPBELL DR",
"city": "HAZARD",
"state": "KY",
"postal_code": "417019407",
"telephone_number": "606-439-1316",
"fax_number": "606-439-8457"
}
],
"practiceLocations": [],
"basic": {
"last_name": "YOST",
"first_name": "CHRISTOPHER",
"middle_name": "MICHAEL",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2011-05-15",
"last_updated": "2026-08-04",
"certification_date": "2026-08-04",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "KY",
"license": "46965",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "7100291110",
"state": "KY"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "christopheryost@arh.medalliesdirect.net",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "Standard Direct Functionality",
"address_1": "181 Roy Campbell Dr",
"city": "Hazard",
"state": "KY",
"country_code": "US",
"postal_code": "417019407",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Hazard, KY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 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.