Quick answers
- Which hospitals does Mark P. Hagen work at?
- Medicare's official clinician data lists Mark P. Hagen at 2 hospitals: Grant Medical Center and Riverside Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark P. Hagen see patients?
- Medicare's clinician data lists 1 practice location in Westerville, OH. Call before your visit to confirm the address.
- What is Mark P. Hagen's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark P. Hagen accept Medicare assignment?
- Yes. Medicare's clinician data says Mark P. Hagen 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 Mark P. Hagen's NPI number?
- 1225358740. 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 P. Hagen works
Medicare's Facility Affiliation Data lists Mark P. Hagen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grant Medical CenterColumbus, OH · Acute Care Hospital · CCN 360017
- Riverside Methodist HospitalColumbus, OH · Acute Care Hospital · CCN 360006
Practice locations
Addresses where Mark P. Hagen is enrolled with Medicare (CMS data updated 2026-10-02).
- 570 Polaris Pkwy, Suite 250Westerville, OH 43082
Specialties
- Family Practiceprimary
Other family doctors in Westerville
Clinicians with the same Medicare primary specialty in Westerville, OH — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | West Virginia School Of Osteopathic Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225358740 |
| 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