Quick answers
- Which hospitals does Michael A. Henderson work at?
- Medicare's official clinician data lists Michael A. Henderson at 3 hospitals: Methodist Medical Center of Oak Ridge, Parkwest Medical Center and Physicians Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael A. Henderson see patients?
- Medicare's clinician data lists 7 practice locations, including Knoxville, TN and Powell, TN. Call before your visit to confirm the address.
- What is Michael A. Henderson's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michael A. Henderson accept Medicare assignment?
- Yes. Medicare's clinician data says Michael A. Henderson 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 Michael A. Henderson?
- (865) 938-3627, as listed in official Medicare / NPI Registry data.
- What is Michael A. Henderson's NPI number?
- 1639125495. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael A. Henderson works
Medicare's Facility Affiliation Data lists Michael A. Henderson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Methodist Medical Center of Oak RidgeOak Ridge, TN · Acute Care Hospital · CCN 440034
- Parkwest Medical CenterKnoxville, TN · Acute Care Hospital · CCN 440173
- Physicians Regional Medical CenterPowell, TN · Acute Care Hospital · CCN 440120
Practice locations
Addresses where Michael A. Henderson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1225 E Weisgarber Rd, Suite 200Knoxville, TN 37849 (865) 938‑3627
- 1275 Dick Lonas RdKnoxville, TN 37909
- 1275 Dick Lonas Rd, Unit 101Knoxville, TN 37909
- 201 E Emory RdPowell, TN 37849 (865) 938‑3627
- 7211 Wellington DrKnoxville, TN 37919
Group practices
Medicare enrollment lists Michael A. Henderson as a member of this group (CMS data updated 2026-10-02).
- Summit Medical Group, PLLC652 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Brody School Of Medicine At East Carolina University |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639125495 |
| 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