Dr. Robert A. Johnson, M.D
Hematology & Oncology (Hematology & Oncology Physician)
- Medicare participating
At a glance
- Medical school
- Saint Louis University School of Medicine (1981)
- Years since graduation
- 45
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 1,125
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
- 1981Medical school: Saint Louis University School of Medicine
- 2006Registered 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
-
Hematology & Oncology Physician primary
TN license 21289 · AR license N8169 · MS license 13100
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Methodist Hospitals of Memphis Memphis, TN
- Baptist Memorial Hospital Memphis, TN
- Regional One Health Memphis, TN
- St Francis Hospital Memphis, TN
- Baptist Memorial Hospital Tipton Covington, TN
Medical groups
- The West Clinic P.c. (118 clinicians)
- Shelby County Health Care Corporation (40 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
- 1,125
- Services billed
- 268,265
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Injection, ferric carboxymaltose, 1 mg | 23,250 | 28 |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 21,780 | 61 |
| Injection, pembrolizumab, 1 mg | 21,400 | 47 |
| Injection, nivolumab, 1 mg | 20,800 | 30 |
| Injection, oxaliplatin, 0.5 mg | 12,730 | 17 |
| Injection, daratumumab, 10 mg and hyaluronidase-fihj | 9,000 | 23 |
| Injection, denosumab, 1 mg | 7,200 | 69 |
| Injection, paclitaxel, 1 mg | 6,997 | 25 |
| Injection, dexamethasone sodium phosphate, 1 mg | 3,971 | 168 |
| Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg | 3,740 | 26 |
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
| Drug | Prescriptions |
|---|---|
| Eliquis (apixaban) Other prescribers in Germantown, TN | 105 |
| Xarelto (rivaroxaban) Other prescribers in Germantown, TN | 102 |
| Prednisone Other prescribers in Germantown, TN | 94 |
| Acyclovir Other prescribers in Germantown, TN | 91 |
| Anastrozole Other prescribers in Germantown, TN | 73 |
| Jakafi (ruxolitinib phosphate) | 69 |
| Dexamethasone Other prescribers in Germantown, TN | 67 |
| Potassium Chloride Other prescribers in Germantown, TN | 56 |
| Oxycodone Hcl Other prescribers in Germantown, TN | 55 |
| Ondansetron Odt (ondansetron) Other prescribers in Germantown, TN | 50 |
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, 14 companies reported 27 payments worth $551 in total to this clinician.
| Pfizer Inc. | $82.01 |
|---|---|
| E.r. Squibb & Sons, L.l.c. | $80.13 |
| GlaxoSmithKline, LLC. | $58.51 |
| AstraZeneca Pharmaceuticals LP | $55.23 |
| AbbVie Inc. | $43.47 |
| Regeneron Healthcare Solutions, Inc. | $41.58 |
| Eisai Inc. | $34.69 |
| Astellas Pharma US Inc | $28.72 |
| Food and Beverage | $551 |
|---|
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.