Dr. Robert J. Armstrong, D.O.
Family Medicine (Family Medicine Physician)
- Medicare participating
At a glance
- Medical school
- Touro Un College of Osteopathic Medicine, Vallejo (2016)
- Years since graduation
- 10
- In the NPI registry since
- 2016
- Medicare patients seen, 2024
- 65
Licensed in California since 2017, according to the Osteopathic Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2016Medical school: Touro Un College of Osteopathic Medicine, Vallejo
- 2016Registered with an NPI (national billing number; not a license date)
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Family Medicine Physician primary
TN license 5702 · CA license 20A15772 (first issued 2017; delinquent)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Vanderbilt University Medical Center Nashville, TN
- Williamson Medical Center Franklin, TN
Medical groups
- Vanderbilt University Medical Center (3,567 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 65
- Services billed
- 247
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 14 | 14 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.