Quick answers
- Which hospitals does Lee W. Gemma work at?
- Medicare's official clinician data lists Lee W. Gemma at 3 hospitals: Diley Ridge Medical Center, Mount Carmel East & West and Mount Carmel St Ann's. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lee W. Gemma see patients?
- Medicare's clinician data lists 1 practice location in Westerville, OH. Call before your visit to confirm the address.
- What is Lee W. Gemma's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Lee W. Gemma accept Medicare assignment?
- Yes. Medicare's clinician data says Lee W. Gemma 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 Lee W. Gemma?
- (614) 627-2000, as listed in official Medicare / NPI Registry data.
- What is Lee W. Gemma's NPI number?
- 1760699029. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lee W. Gemma works
Medicare's Facility Affiliation Data lists Lee W. Gemma at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Diley Ridge Medical CenterCanal Winchester, OH · Acute Care Hospital · CCN 360358
- Mount Carmel East & WestColumbus, OH · Acute Care Hospital · CCN 360035
- Mount Carmel St Ann'sWesterville, OH · Acute Care Hospital · CCN 360012
Practice locations
Addresses where Lee W. Gemma is enrolled with Medicare (CMS data updated 2026-10-02).
- 477 Cooper Rd, Suite 200Westerville, OH 43081 (614) 627‑2000
Group practices
Medicare enrollment lists Lee W. Gemma as a member of this group (CMS data updated 2026-10-02).
- Mount Carmel Healthproviders Two LLC225 clinicians in the group
Specialties
Other cardiac electrophysiologists in Ohio
Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760699029 |
| 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