Quick answers
- Which hospitals does John Tsai work at?
- Medicare's official clinician data lists John Tsai at 4 hospitals: Aultman Hospital, Aultman Orrville Hospital, Pomerene Hospital and Union Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Tsai see patients?
- Medicare's clinician data lists 7 practice locations, including Millersburg, OH, Canton, OH and Dover, OH. Call before your visit to confirm the address.
- What is John Tsai's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John Tsai accept Medicare assignment?
- Yes. Medicare's clinician data says John Tsai 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 John Tsai?
- (330) 454-8076, as listed in official Medicare / NPI Registry data.
- What is John Tsai's NPI number?
- 1003859091. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Tsai works
Medicare's Facility Affiliation Data lists John Tsai at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aultman HospitalCanton, OH · Acute Care Hospital · CCN 360084
- Aultman Orrville HospitalOrrville, OH · Critical Access Hospital · CCN 361323
- Pomerene HospitalMillersburg, OH · Acute Care Hospital · CCN 360148
- Union HospitalDover, OH · Acute Care Hospital · CCN 360010
Practice locations
Addresses where John Tsai is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1261 Wooster RdMillersburg, OH 44654
- 2600 6th St SWCanton, OH 44710 (330) 454‑8076
- 420 S Reeves Ave, Suite BDover, OH 44622 (330) 364‑4600
- 603 Monroe StDover, OH 44622 (330) 364‑8889
- 659 Boulevard StDover, OH 44622 (330) 343‑3311
Group practices
Medicare enrollment lists John Tsai as a member of these groups (CMS data updated 2026-10-02).
- Aultman Deuble Heart and Vascular Hospital, LLC112 clinicians in the group
- Orrville Hospital Foundation77 clinicians in the group
- Aultman Hospital43 clinicians in the group
- Health Professionals of Holmes County, Inc.41 clinicians in the group
- The Union Hospital Association15 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Ohio →
Other cardiologists 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 | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003859091 |
| 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