Mark Mahan, DO
Surgery · Danville, PANPI 1841730496
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (37.5%), travel and lodging and education — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 68.1% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2023 at $1,611 and has fallen 90.7% since, to $150 in 2025.
Across 32 payments — averaging $152.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$3K
- Medical Device Business Services, Inc.$498
- Johnson & Johnson$181
- Boston Scientific$150
- W. L. Gore & Associates, Inc.$150
- Haemonetics Corporation$121
- plus $463 from 5 others
What the payments were for
- Speaking & faculty fees$1202%
- Travel & lodging$1,62033%
- Food & beverage$1,83537%
- Education$1,30527%
- Gifts$160%
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 | 17 | $3,334 |
| Medical Device Business Services, Inc. | 2 | $498 |
| Johnson & Johnson | 3 | $181 |
| Boston Scientific | 1 | $150 |
| W. L. Gore & Associates, Inc. | 1 | $150 |
| Haemonetics Corporation | 1 | $121 |
| Misonix Inc | 1 | $120 |
| Atricure, Inc. | 1 | $101 |
| Smith+Nephew | 2 | $87 |
| Integra Lifesciences Corporation | 2 | $78 |
| Medtronic | 1 | $76 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$4,896 in reported general payments places this provider in the 75th percentile of 1,424 surgery providers in Pennsylvania.
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 |
|---|---|---|
| Sucralfate | 26 | $1,496 |
| Misoprostol | 12 | $1,206 |
| Omeprazole | 30 | $312 |
| Ondansetron Hcl | 11 | $84 |
Paid to pharmacies, not to this prescriber.
Other surgery in Danville
- Glenn SteeleDanville$698K
- Andy KiserPittsburgh$1M
- Maher El ChaarAllentown$667K
- George EidPittsburgh$619K
- Paul CesanekAllentown$469K
- Clark GerhartPlains$317K
- Irina YermilovPlymouth Meeting$315K
- Eric PauliHershey$202K
- Ariel AballayPittsburgh$198K
- Ann RogersHershey$198K
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.