Dr. Ryan W. Chapman, MD
Neurology (Neurology Physician)
At a glance
- In the NPI registry since
- 2021
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
-
Neurology Physician primary
MS license T4495 - Student in an Organized Health Care Education/Training Program
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Atorvastatin Calcium Other prescribers in Jackson, MS | 24 |
| Levetiracetam Other prescribers in Jackson, MS | 15 |
| Ropinirole Hcl Other prescribers in Jackson, MS | 12 |
| Gabapentin Other prescribers in Jackson, MS | 11 |
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, 11 companies reported 21 payments worth $696 in total to this clinician.
| AbbVie Inc. | $170 |
|---|---|
| AstraZeneca Pharmaceuticals LP | $123 |
| UCB, Inc. | $99.19 |
| Jazz Pharmaceuticals Inc. | $96.45 |
| EMD Serono, Inc. | $41.41 |
| Genzyme Corporation | $33.51 |
| Sk Life Science, Inc. | $33.43 |
| Medtronic, Inc. | $31.24 |
| Food and Beverage | $696 |
|---|
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.