Individual provider Active NPI

Robert William Horner IV

  • Internal Medicine Physician
  • Westerville, OH
National Provider Identifier
1790429751
Registry record updated Jul 31, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
34.017495 Issued in OH
Practice address
495 Cooper Rd Ste 311
Westerville, OH 43081-8729
Phone
(614) 663-4550
NPI assigned
Apr 26, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 31, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Internal Medicine Physician 207R00000X 34.017495 OH Primary

Addresses

Primary practice location

495 Cooper Rd Ste 311
Westerville, OH 43081-8729

Mailing address

5300 N Meadows Dr
Grove City, OH 43123-2546
Phone (614) 663-4550

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH
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
I20250911000719 OH Practitioner - Internal Medicine 9234514100 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mount Carmel Healthproviders IncGroup PAC ID 9537073804, 140 clinicians

Practice addresses (Care Compare)

495 Cooper Rd
Suite 311
Westerville, OH 43081-8729
Phone (614) 627-1490

Hospital & facility affiliations

  • Mount Carmel East & West Hospital, Columbus, OH, CCN 360035
  • Mount Carmel St Ann'S Hospital, Westerville, OH, CCN 360012

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mount Carmel Healthproviders Inc Internal Medicine CurrentSince Oct 5, 2025 Accepting new patients
Mount Carmel Health Providers Inc CurrentSince Oct 5, 2025 Accepting new patients

Locations

5300 N Meadows Dr
Ste 1900
Grove City, OH 43123
Phone (614) 663-2450

5300 N Meadows Dr
Grove City, OH 43123
Phone (614) 234-4242

55 N High St
New Albany, OH 43054
Phone (614) 627-1878

495 Cooper Rd
Ste 311
Westerville, OH 43081
Phone (614) 627-1490

Interoperability endpoints

  • Direct secure messaging: rhorner1840423@direct.trinity-health.org

Organizations & group practices 2

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 3

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": "1650931200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753920000000",
    "number": "1790429751",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5300 N MEADOWS DR",
            "city": "GROVE CITY",
            "state": "OH",
            "postal_code": "431232546",
            "telephone_number": "614-663-4550"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "495 COOPER RD STE 311",
            "city": "WESTERVILLE",
            "state": "OH",
            "postal_code": "430818729",
            "telephone_number": "614-663-4550"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HORNER",
        "first_name": "ROBERT",
        "middle_name": "WILLIAM",
        "name_suffix": "IV",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-26",
        "last_updated": "2025-07-31",
        "certification_date": "2025-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OH",
            "license": "34.017495",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Westerville, OH

Sources for this page

Verify at the official NPI Registry.