Individual provider Active NPI

Stephen James Mularz, D.O.

  • Gastroenterology Physician
  • Hazard, KY
National Provider Identifier
1982018156
Registry record updated Jul 31, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
E000 Issued in KY
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

Updated by the provider on Jul 31, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
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

IdentifierTypeStateIssuer
04868OtherKYLICENSE

Electronic endpoints 1

TypeEndpointUseAffiliation
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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20201214003060 KY Practitioner - Gastroenterology 6800208992 Reassigns benefits to 1 organization

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
Appalachian Regional Healthcare IncGroup PAC ID 0840107835, 301 clinicians

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 Hospital, Hazard, KY, CCN 180029
  • Whitesburg Arh Hospital Hospital, Whitesburg, KY, CCN 180002
  • Harlan Arh Hospital Hospital, Harlan, KY, CCN 180050

Merit-based Incentive Payment System (MIPS)

Final score
82.15 of 100Reported as apm
Quality
47.14
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy110
Upper gastrointestinal (GI) endoscopy for acid reflux222

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
E000KYMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Appalachian Regional Healthcare, Inc. CurrentSince Sep 11, 2020 Accepting new patients
Appalachian Regional Healthcare, Inc Current Accepting new patients
Appalachian Regional Healthcare, Inc CurrentSince Sep 11, 2020 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

  • Direct secure messaging: 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.

Hospital & facility affiliations 7

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": "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

Verify at the official NPI Registry.