Dr. David G. Johnston, MD
Pediatrics (Pediatrics Physician)
At a glance
- Medical school
- University of Tennessee, Hsc, College of Medicine (1999)
- Years since graduation
- 27
- In the NPI registry since
- 2005
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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1999Medical school: University of Tennessee, Hsc, College of Medicine
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Pediatrics Physician primary
TN license 35695
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Medical groups
- Premier Medical Group PC (45 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 prescriptions
| Drug | Prescriptions |
|---|---|
| Fluticasone Propionate Other prescribers in Clarksville, TN | 12 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 2 companies reported 2 payments worth $35.18 in total to this clinician.
| Pfizer Inc. | $20.50 |
|---|---|
| Collegium Pharmaceutical, Inc. | $14.68 |
| Food and Beverage | $35.18 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.