Quick answers
- Which hospitals does Gary M. Onady work at?
- Medicare's official clinician data lists Gary M. Onady at 2 hospitals: University of Cincinnati Medical Center, LLC and West Chester Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary M. Onady see patients?
- Medicare's clinician data lists 1 practice location in Trenton, OH. Call before your visit to confirm the address.
- What is Gary M. Onady's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
- Does Gary M. Onady accept Medicare assignment?
- Yes. Medicare's clinician data says Gary M. Onady 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 Gary M. Onady?
- (513) 988-6067, as listed in official Medicare / NPI Registry data.
- What is Gary M. Onady's NPI number?
- 1396792347. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary M. Onady works
Medicare's Facility Affiliation Data lists Gary M. Onady at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of Cincinnati Medical Center, LLCCincinnati, OH · Acute Care Hospital · CCN 360003
- West Chester HospitalWest Chester, OH · Acute Care Hospital · CCN 360354
Practice locations
Addresses where Gary M. Onady is enrolled with Medicare (CMS data updated 2026-10-02).
- 715 W State StTrenton, OH 45067 (513) 988‑6067
Group practices
Medicare enrollment lists Gary M. Onady as a member of this group (CMS data updated 2026-10-02).
- University of Cincinnati Physicians Company LLC1,506 clinicians in the group
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Ohio
Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wright State University Boonshoft School Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396792347 |
| 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