Quick answers
- Which hospitals does Grey Leonard work at?
- Medicare's official clinician data lists Grey Leonard at 2 hospitals: Fort Sanders Regional Medical Center and Morristown Hamblen Hospital Association. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Grey Leonard see patients?
- Medicare's clinician data lists 2 practice locations, including Knoxville, TN. Call before your visit to confirm the address.
- What is Grey Leonard's specialty?
- Medicare lists Surgical Oncology as the primary specialty.
- Does Grey Leonard accept Medicare assignment?
- Yes. Medicare's clinician data says Grey Leonard 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 Grey Leonard?
- (865) 524-3695, as listed in official Medicare / NPI Registry data.
- What is Grey Leonard's NPI number?
- 1710374558. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Grey Leonard works
Medicare's Facility Affiliation Data lists Grey Leonard 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
- Morristown Hamblen Hospital AssociationMorristown, TN · Acute Care Hospital · CCN 440030
Practice locations
Addresses where Grey Leonard is enrolled with Medicare (CMS data updated 2026-10-02).
- 1819 Clinch Ave, Suite 200Knoxville, TN 37916 (865) 524‑3695
- 6408 Papermill DrKnoxville, TN 37919 (865) 588‑8229
Group practices
Medicare enrollment lists Grey Leonard as a member of this group (CMS data updated 2026-10-02).
- Premier Surgical Associates PLLC59 clinicians in the group
Specialties
- Surgical Oncologyprimary
Other surgical oncologists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Florida College Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1710374558 |
| 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