Active NPI
Stephen James Mularz, D.O.
- Gastroenterology Physician
- Hazard, KY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- E000
- Practice address
- 200 Medical Center Dr
Hazard, KY 41701-9466 - Phone
- (606) 439-3952
- Fax
- (606) 439-8493
- NPI assigned
- Jun 16, 2014
- 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | E000 | KY | |
| Gastroenterology Physician | 207RG0100X | E000 | KY | Primary |
Addresses
Primary practice location
200 Medical Center Dr
Hazard, KY 41701-9466
Mailing address
200 Medical Center Dr
Hazard, KY 41701-9466
Phone (606) 439-3952
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 04868 | Other | KY | LICENSE |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | stephenmularz@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
- Gastroenterology
- Education
- Lincoln Mem Univ, Debusk Col of Osteopathic Med, 2014
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
100 Medical Ctr Dr
Hazard, KY 41701-9421
Phone (606) 439-6600
102 Medical Ctr Dr
Suite 101
Hazard, KY 41701-9421
Phone (606) 435-7200
110 Medical Ctr Dr
Hazard, KY 41701-9421
Phone (606) 487-7902
181 Roy Campbell Dr
Hazard, KY 41701-9407
Phone (606) 439-1316
200 Medical Ctr Dr
Hazard, KY 41701-9466
Phone (606) 487-7510
Hospital & facility affiliations
- Hazard Arh Regional Medical Center
- Whitesburg Arh Hospital
- Harlan Arh Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 82.15 of 100
- Quality
- 47.14
- Promoting interoperability
- 100
- Improvement activities
- 40
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 110 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 222 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| E000 | KY | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Appalachian Regional Healthcare, Inc. | Current | Accepting new patients | |
| Appalachian Regional Healthcare, Inc | Current | Accepting new patients | |
| Appalachian Regional Healthcare, Inc | Current | Accepting new patients |
Locations
200 Medical Dr
Hazard, KY 41701
Phone (606) 439-5057
100 Airport Gardens Rd
Hazard, KY 41701
Phone (606) 487-7503
181 Roy Campbell Dr
Hazard, KY 41701
Phone (606) 439-1316
100 Airport Gardens Rd
#311
Hazard, KY 41701
Phone (606) 439-6978
214 Hospital Rd
Whitesburg, KY 41858
Phone (606) 633-3631
Interoperability endpoints
- stephenmularz@arh.medalliesdirect.net
Organizations & group practices 4
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.
-
- Clinical Pathology/Laboratory Medicine Physician
- Whitesburg, KY
- NPI 1417045998
-
- Community/Retail Pharmacy
- Cumberland, KY
- NPI 1710870811
-
- Anatomic Pathology & Clinical Pathology Physician
- Hazard, KY
- NPI 1780728881
-
- Multi-Specialty Clinic/Center
- Hazard, KY
- NPI 1558431346
Hospital & facility affiliations 7
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Whitesburg, KY
- NPI 1194723726
-
- General Acute Care Hospital
- Harlan, KY
- NPI 1306842521
-
- Multi-Specialty Clinic/Center
- Hazard, KY
- NPI 1558431346
Hospital
-
- General Acute Care Hospital
- Hazard, KY
- NPI 1609869916
-
- Multi-Specialty Clinic/Center
- Whitesburg, KY
- NPI 1821204199
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1402876800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785456000000",
"number": "1982018156",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "200 MEDICAL CENTER DR",
"city": "HAZARD",
"state": "KY",
"postal_code": "417019466",
"telephone_number": "606-439-3952",
"fax_number": "606-439-8493"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "200 MEDICAL CENTER DR",
"city": "HAZARD",
"state": "KY",
"postal_code": "417019466",
"telephone_number": "606-439-3952",
"fax_number": "606-439-8493"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MULARZ",
"first_name": "STEPHEN",
"middle_name": "JAMES",
"name_prefix": "Dr.",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2014-06-16",
"last_updated": "2026-07-31",
"certification_date": "2026-07-31",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "KY",
"license": "E000",
"primary": false
},
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "KY",
"license": "E000",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LICENSE",
"identifier": "04868",
"state": "KY"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "stephenmularz@arh.medalliesdirect.net",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "Standard Direct Functionality",
"address_1": "200 Medical Center Dr",
"city": "Hazard",
"state": "KY",
"country_code": "US",
"postal_code": "417019466",
"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 Jul 31, 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.