Quick answers
- Which hospitals does Michael R. Nannenga work at?
- Medicare's official clinician data lists Michael R. Nannenga at 2 hospitals: Clinch Valley Medical Center and Wellmont Holston Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael R. Nannenga see patients?
- Medicare's clinician data lists 1 practice location in Kingsport, TN. Call before your visit to confirm the address.
- What is Michael R. Nannenga's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Michael R. Nannenga accept Medicare assignment?
- Yes. Medicare's clinician data says Michael R. Nannenga 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 Michael R. Nannenga offer telehealth?
- Medicare's clinician data says Michael R. Nannenga offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Michael R. Nannenga?
- (423) 857-2790, as listed in official Medicare / NPI Registry data.
- What is Michael R. Nannenga's NPI number?
- 1922104975. 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 R. Nannenga works
Medicare's Facility Affiliation Data lists Michael R. Nannenga at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Clinch Valley Medical CenterRichlands, VA · Acute Care Hospital · CCN 490060
- Wellmont Holston Valley Medical CenterKingsport, TN · Acute Care Hospital · CCN 440017
Practice locations
Addresses where Michael R. Nannenga is enrolled with Medicare (CMS data updated 2026-10-02).
- 105 W Stone Dr, Suite 5cKingsport, TN 37660 (423) 857‑2790
Group practices
Medicare enrollment lists Michael R. Nannenga as a member of this group (CMS data updated 2026-10-02).
- Holston Medical Group PC238 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Tennessee
Clinicians with the same Medicare primary specialty in Tennessee — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1922104975 |
| 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