Quick answers
- Which hospitals does Thomas J. O'Neill work at?
- Medicare's official clinician data lists Thomas J. O'Neill at 5 hospitals: Parma Community General Hospital, Southwest General Health Center, UH Cleveland Medical Center, University Hospitals - Elyria Medical Center and University Hospitals Ahuja Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas J. O'Neill see patients?
- Medicare's clinician data lists 1 practice location in Cleveland, OH. Call before your visit to confirm the address.
- What is Thomas J. O'Neill's specialty?
- Medicare lists Advanced Heart Failure and Transplant Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Thomas J. O'Neill accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas J. O'Neill 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.
- Does Thomas J. O'Neill offer telehealth?
- Medicare's clinician data says Thomas J. O'Neill offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Thomas J. O'Neill?
- (216) 844-1000, as listed in official Medicare / NPI Registry data.
- What is Thomas J. O'Neill's NPI number?
- 1639373327. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thomas J. O'Neill works
Medicare's Facility Affiliation Data lists Thomas J. O'Neill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Parma Community General HospitalParma, OH · Acute Care Hospital · CCN 360041
- Southwest General Health CenterMiddleburg Heights, OH · Acute Care Hospital · CCN 360155
- UH Cleveland Medical CenterCleveland, OH · Acute Care Hospital · CCN 360137
- University Hospitals - Elyria Medical CenterElyria, OH · Acute Care Hospital · CCN 360145
- University Hospitals Ahuja Medical CenterBeachwood, OH · Acute Care Hospital · CCN 360359
Practice locations
Addresses where Thomas J. O'Neill is enrolled with Medicare (CMS data updated 2026-10-02).
- 11100 Euclid AveCleveland, OH 44106 (216) 844‑1000
Group practices
Medicare enrollment lists Thomas J. O'Neill as a member of this group (CMS data updated 2026-10-02).
- University Hospitals Medical Group Inc2,294 clinicians in the group
Specialties
Find other Advanced Heart Failure and Transplant Cardiology doctors in Ohio →
Other heart failure and transplant cardiologists in Cleveland
Clinicians with the same Medicare primary specialty in Cleveland, OH — not a recommendation.
- Mazen A. Hanna, MD
- Ziad A. Taimeh, MD
- Ravi Ramani, MD
- Eiran Gorodeski, MD
- Eileen Hsich, MD
- Karen B. James, MD
- Robert Montgomery, MD
- Randall Starling, MD
All heart failure and transplant cardiologists in Cleveland →
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1639373327 |
| 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