Steven Proshan, MD
Colon & Rectal Surgery · Annapolis, MDNPI 1487754933
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 7 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 6 manufacturers reported payments, led by Intuitive Surgical at 31.1% of the total. Reporting peaked in 2019 at $92 and has fallen 61.8% since, to $35 in 2025. That places this record below the midpoint for colon & rectal surgery clinicians in MD, where the typical reported total is $1,789.
Across 7 payments — averaging $26.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$57
- Johnson & Johnson$38
- Pacira Pharmaceuticals Incorporated$35
- Convatec Inc.$26
- Merck$17
- Covidien LP$11
What the payments were for
- Food & beverage$184100%
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 |
|---|---|---|
| Intuitive Surgical | 2 | $57 |
| Johnson & Johnson | 1 | $38 |
| Pacira Pharmaceuticals Incorporated | 1 | $35 |
| Convatec Inc. | 1 | $26 |
| Merck | 1 | $17 |
| Covidien LP | 1 | $11 |
How this compares
$184 in reported general payments places this provider in the 10th percentile of 29 colon & rectal surgery providers in Maryland.
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 |
|---|---|---|
| Neomycin Sulfate | 15 | $76 |
| Metronidazole | 17 | $24 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Annapolis
- Irina BernescuBaltimore$93K
- Bashar SafarBaltimore$26K
- Joshua WolfBaltimore$24K
- Philip FerrisBaltimore$11K
- Ivane ChuaTowson$10K
- Valerie Cabrera LeonTowson$10K
- Joseph DiroccoTowson$8K
- James ZaluckiEllicott City$5K
- James DuncanBethesda$5K
- Chady AtallahBaltimore$4K
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.