Quick answers
- Which hospitals does Guy Tillinghast work at?
- Medicare's official clinician data lists Guy Tillinghast at 5 hospitals: Akron General Medical Center, Cabell Huntington Hospital, Inc, Cleveland Clinic, Mercy Medical Center and University Health System, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guy Tillinghast see patients?
- Medicare's clinician data lists 6 practice locations, including Knoxville, TN and Cleveland, OH. Call before your visit to confirm the address.
- What is Guy Tillinghast's specialty?
- Medicare lists Medical Oncology as the primary specialty, and also Hematology/Oncology and Internal Medicine.
- Does Guy Tillinghast accept Medicare assignment?
- Yes. Medicare's clinician data says Guy Tillinghast 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 Guy Tillinghast offer telehealth?
- Medicare's clinician data says Guy Tillinghast offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Guy Tillinghast?
- (865) 305-5622, as listed in official Medicare / NPI Registry data.
- What is Guy Tillinghast's NPI number?
- 1205853793. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guy Tillinghast works
Medicare's Facility Affiliation Data lists Guy Tillinghast at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Akron General Medical CenterAkron, OH · Acute Care Hospital · CCN 360027
- Cabell Huntington Hospital, IncHuntington, WV · Acute Care Hospital · CCN 510055
- Cleveland ClinicCleveland, OH · Acute Care Hospital · CCN 360180
- Mercy Medical CenterCanton, OH · Acute Care Hospital · CCN 360070
- University Health System, IncKnoxville, TN · Acute Care Hospital · CCN 440015
Practice locations
Addresses where Guy Tillinghast is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 11440 Parkside Dr, Suite 202Knoxville, TN 37934 (865) 305‑5622
- 1926 Alcoa Hwy 410Knoxville, TN 37920 (865) 544‑9218
- 1928 Alcoa Hwy, Suite B100Knoxville, TN 37920 (865) 305‑6333
- 1928 Alcoa Hwy 102Knoxville, TN 37920 (865) 305‑6640
- 1928 Alcoa Hwy S 102Knoxville, TN 37920 (865) 544‑6740
Group practices
Medicare enrollment lists Guy Tillinghast as a member of these groups (CMS data updated 2026-10-02).
- Cleveland Clinic7,090 clinicians in the group
- University Health System, Inc.522 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematology/Oncologyalso
- Internal Medicinealso
Other oncologists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1205853793 |
| 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