Oliver Johnson
Physician Assistants (Physician Assistant)
819 Worcester St Ste 1
Springfield, MA 01151
Who else practices at this address →
Hampden County includes primary care (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- In the NPI registry since
- 2021
- Medicare patients seen, 2024
- 120
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
- 2021Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Physician Assistant primary
MA license PA8349
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
- Medicare patients, 2024
- 120
- Services billed
- 877
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 449 | 101 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 27 | 13 |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 18 | 13 |
| Nursing facility discharge day management, 30 minutes or less | 12 | 12 |
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 |
|---|---|
| Oxycodone Hcl Other prescribers in Springfield, MA | 137 |
| Lorazepam Other prescribers in Springfield, MA | 129 |
| Clonazepam Other prescribers in Springfield, MA | 80 |
| Tramadol Hcl Other prescribers in Springfield, MA | 79 |
| Trazodone Hcl Other prescribers in Springfield, MA | 58 |
| Warfarin Sodium Other prescribers in Springfield, MA | 48 |
| Oxycontin (oxycodone hcl) Other prescribers in Springfield, MA | 44 |
| Pregabalin Other prescribers in Springfield, MA | 42 |
| Morphine Sulfate Other prescribers in Springfield, MA | 40 |
| Buprenorphine-Naloxone (buprenorphine hcl/naloxone hcl) Other prescribers in Springfield, MA | 37 |
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, 1 companies reported 1 payments worth $21.00 in total to this clinician.
| Acadia Pharmaceuticals Inc | $21.00 |
|---|
| Food and Beverage | $21.00 |
|---|
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.