Quick answers
- Which hospitals does Robert J. Armstrong work at?
- Medicare's official clinician data lists Robert J. Armstrong at 2 hospitals: Vanderbilt University Medical Center and Williamson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert J. Armstrong see patients?
- Medicare's clinician data lists 2 practice locations, including Nashville, TN. Call before your visit to confirm the address.
- What is Robert J. Armstrong's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Robert J. Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Robert J. Armstrong 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 Robert J. Armstrong offer telehealth?
- Medicare's clinician data says Robert J. Armstrong offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Robert J. Armstrong?
- (615) 322-5000, as listed in official Medicare / NPI Registry data.
- What is Robert J. Armstrong's NPI number?
- 1891148847. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert J. Armstrong works
Medicare's Facility Affiliation Data lists Robert J. Armstrong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospital · CCN 440039
- Williamson Medical CenterFranklin, TN · Acute Care Hospital · CCN 440029
Practice locations
Addresses where Robert J. Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 1301 Medical Ctr DrNashville, TN 37232 (615) 322‑5000
- 3601 the Vanderbilt ClinicNashville, TN 37232 (615) 322‑3000
Group practices
Medicare enrollment lists Robert J. Armstrong as a member of this group (CMS data updated 2026-10-02).
- Vanderbilt University Medical Center3,567 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Nashville
Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Touro Un College Of Osteopathic Medicine, Vallejo |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1891148847 |
| 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