Quick answers
- Which hospitals does John M. Haydek work at?
- Medicare's official clinician data lists John M. Haydek at 4 hospitals: Fort Sanders Regional Medical Center, Parkwest Medical Center, Physicians Regional Medical Center and University Health System, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Haydek see patients?
- Medicare's clinician data lists 2 practice locations, including Knoxville, TN. Call before your visit to confirm the address.
- What is John M. Haydek's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does John M. Haydek accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Haydek 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 M. Haydek?
- (865) 558-0606, as listed in official Medicare / NPI Registry data.
- What is John M. Haydek's NPI number?
- 1275508095. 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 M. Haydek works
Medicare's Facility Affiliation Data lists John M. Haydek at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Fort Sanders Regional Medical CenterKnoxville, TN · Acute Care Hospital · CCN 440125
- Parkwest Medical CenterKnoxville, TN · Acute Care Hospital · CCN 440173
- Physicians Regional Medical CenterPowell, TN · Acute Care Hospital · CCN 440120
- University Health System, IncKnoxville, TN · Acute Care Hospital · CCN 440015
Practice locations
Addresses where John M. Haydek is enrolled with Medicare (CMS data updated 2026-10-02).
- 1311 Dowell Springs BlvdKnoxville, TN 37909
- 1311 Dowell Springs Blvd, Suite 300Knoxville, TN 37909 (865) 558‑0606
Group practices
Medicare enrollment lists John M. Haydek as a member of this group (CMS data updated 2026-10-02).
- Gastrointestinal Associates PC33 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275508095 |
| 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