Aja Nikole Happel, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

35.150461 Issued in OH

Practice address

4000 Johnson Rd
Steubenville, OH 43952-2364

Phone

(740) 264-8039

Fax

(740) 264-8049

NPI assigned

Apr 5, 2021

Last updated

Feb 2, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in OH, WV2 enrollments

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 2

Specialty

Internal Medicine

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Trinity WestGroup PAC ID 5496648875, 145 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trinity Medical Ctr East &Trinity Medical Ctr West Hospital, Steubenville, OH, CCN 360211

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Trinity West

  dba Trinity Family Care Centers

  • Family Medicine Physician
  • Steubenville, OH
  • NPI 1043234677
  Medicare reassignment Care Compare group NPD
• Valley Hospice Inc.

  dba Valley Hospice

  • Hospice and Palliative Medicine (Family Medicine) Physician
  • Rayland, OH
  • NPI 1740864834
  Medicare reassignment NPD
• Valley Hospice Inc.

  dba Valley Hospice

  • Hospice and Palliative Medicine (Family Medicine) Physician
  • Wheeling, WV
  • NPI 1730763822
  Medicare reassignment NPD
• Trinity West

  dba Trinity Family Care Centers

  • Rural Health Clinic/Center
  • Cadiz, OH
  • NPI 1316789506
  NPD
• Trinity Hospital Holding Company

  dba Acute Care West

  • General Acute Care Hospital
  • Steubenville, OH
  • NPI 1285715144
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Trinity Hospital Holding Company

  dba Acute Care West

  • General Acute Care Hospital
  • Steubenville, OH
  • NPI 1285715144
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1617580800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769990400000",
    "number": "1912586363",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "380 SUMMIT AVE",
            "city": "STEUBENVILLE",
            "state": "OH",
            "postal_code": "439522667",
            "telephone_number": "740-283-7597",
            "fax_number": "740-283-7807"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4000 JOHNSON RD",
            "city": "STEUBENVILLE",
            "state": "OH",
            "postal_code": "439522364",
            "telephone_number": "740-264-8039",
            "fax_number": "740-264-8049"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10686 State Route 150",
            "address_purpose": "LOCATION",
            "city": "Rayland",
            "state": "OH",
            "postal_code": "439437847",
            "country_code": "US",
            "telephone_number": "740-859-5650",
            "fax_number": "740-859-5685",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAPPEL",
        "first_name": "AJA",
        "middle_name": "NIKOLE",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-04-05",
        "last_updated": "2026-02-02",
        "certification_date": "2026-02-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OH",
            "license": "35.150461",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "OH",
            "license": "35.150461",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0049771",
            "state": "OH"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ahappel@valleyhospice.org",
            "affiliation": "N",
            "address_1": "10686 State Route 150",
            "city": "Rayland",
            "state": "OH",
            "country_code": "US",
            "postal_code": "439437847",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Lesley Ann Hall, MD
• Wanda Hamilton, QMHS
• Hanger Prosthetics & Orthotics Inc
• Ystwyth Hanlin, CT
• Richard Alan Happ, CRNA
• Devin Harding, DO
• Robert E Harris, M.A., L.P.C.
• Anita Hartzel, LAT, AT, ATC
• Jodie Vincent Hartzell, CRNA
• Harvey W Waller DC Inc

• Internal Medicine Physician in Steubenville, OH
• Providers in Steubenville, OH by specialty
• Internal Medicine Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 2, 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.

Verify at the official NPI Registry.