Rizwan Arayan, MD
Physical Medicine & Rehabilitation · Chicago, ILNPI 1730174046
Payments from drug & device makers
Across 24 payments — averaging $16.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Collegium Pharmaceutical, Inc.$114
- Assertio Therapeutics, Inc.$99
- AstraZeneca$46
- Scilex Pharmaceuticals Inc.$35
- Shionogi Inc$31
- Bioventus LLC$27
- plus $50 from 3 others
What the payments were for
- Food & beverage$401100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Collegium Pharmaceutical, Inc. | 8 | $114 |
| Assertio Therapeutics, Inc. | 5 | $99 |
| AstraZeneca | 3 | $46 |
| Scilex Pharmaceuticals Inc. | 2 | $35 |
| Shionogi Inc | 2 | $31 |
| Bioventus LLC | 1 | $27 |
| Zyla Life Sciences, Inc. | 1 | $17 |
| Boston Scientific | 1 | $17 |
| Linus Health, Inc. | 1 | $15 |
How this compares
$401 in reported general payments places this provider in the 75th percentile of 433 physical medicine & rehabilitation providers in Illinois.
See all physical medicine & rehabilitation providers in Illinois →
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Gabapentin | 82 | $1,313 |
| Methylprednisolone Acetate | 15 | $258 |
| Lisinopril | 11 | $58 |
Paid to pharmacies, not to this prescriber.
Other physical medicine & rehabilitation in Chicago
- Zachary McCormickChicago$3.1M
- Vivian RoyChicago$42K
- Ravi KasiChicago$17K
- Steven KreisChicago$16K
- Henry GuanChicago$11K
- Ibrahim Usman-OyoweChicago$10K
- Giuliana RotunnoChicago$5K
- Leon HuddlestonChicago$4K
- Alice YeChicago$4K
- Anjum KhanChicago$3K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.