Quick answers
- Which hospitals does Gregory R. Semon work at?
- Medicare's official clinician data lists Gregory R. Semon at 5 hospitals: Atrium Medical Center, Miami Valley Hospital, Upper Valley Medical Center, Wayne Hospital and Wilson Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory R. Semon see patients?
- Medicare's clinician data lists 5 practice locations, including Dayton, OH, Tipp City, OH and Englewood, OH. Call before your visit to confirm the address.
- What is Gregory R. Semon's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Gregory R. Semon accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory R. Semon 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 Gregory R. Semon?
- (937) 439-4381, as listed in official Medicare / NPI Registry data.
- What is Gregory R. Semon's NPI number?
- 1134366149. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory R. Semon works
Medicare's Facility Affiliation Data lists Gregory R. Semon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Atrium Medical CenterFranklin, OH · Acute Care Hospital · CCN 360076
- Miami Valley HospitalDayton, OH · Acute Care Hospital · CCN 360051
- Upper Valley Medical CenterTroy, OH · Acute Care Hospital · CCN 360174
- Wayne HospitalGreenville, OH · Critical Access Hospital · CCN 361335
- Wilson Memorial HospitalSidney, OH · Acute Care Hospital · CCN 360013
Practice locations
Addresses where Gregory R. Semon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Wyoming StDayton, OH 45409
- 1 Wyoming St, Berry Women'S Center Labor and DeliveryDayton, OH 45409 (937) 439‑4381
- 30 E Apple StDayton, OH 45409
- 450 N Hyatt St, Suite 304Tipp City, OH 45371 (937) 832‑4773
- 9000 N Main StEnglewood, OH 45415
Group practices
Medicare enrollment lists Gregory R. Semon as a member of this group (CMS data updated 2026-10-02).
- Premier Health Specialists Inc580 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Dayton
Clinicians with the same Medicare primary specialty in Dayton, OH — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134366149 |
| 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