Quick answers
- Which hospitals does Mark D. Hess work at?
- Medicare's official clinician data lists Mark D. Hess at 5 hospitals: Adena Regional Medical Center, Fairfield Medical Center, Grant Medical Center, Mercy St Vincent Medical Center and Riverside Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Hess see patients?
- Medicare's clinician data lists 1 practice location in Columbus, OH. Call before your visit to confirm the address.
- What is Mark D. Hess's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Mark D. Hess accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Hess accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark D. Hess?
- (614) 228-7231, as listed in official Medicare / NPI Registry data.
- What is Mark D. Hess's NPI number?
- 1780079616. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark D. Hess works
Medicare's Facility Affiliation Data lists Mark D. Hess at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adena Regional Medical CenterChillicothe, OH · Acute Care Hospital · CCN 360159
- Fairfield Medical CenterLancaster, OH · Acute Care Hospital · CCN 360072
- Grant Medical CenterColumbus, OH · Acute Care Hospital · CCN 360017
- Mercy St Vincent Medical CenterToledo, OH · Acute Care Hospital · CCN 360112
- Riverside Methodist HospitalColumbus, OH · Acute Care Hospital · CCN 360006
Practice locations
Addresses where Mark D. Hess is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 S Grant Ave, Ohiohealth Grant Medical CenterColumbus, OH 43215 (614) 228‑7231
Group practices
Medicare enrollment lists Mark D. Hess as a member of this group (CMS data updated 2026-10-02).
- Columbus Radiology Corp292 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Columbus
Clinicians with the same Medicare primary specialty in Columbus, OH — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780079616 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians