Adam Maerz, MD
Colon & Rectal Surgery · Springfield, ILNPI 1588195044
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (48.2%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 8 manufacturers reported payments, led by Intuitive Surgical at 40.2% of the total. 2025 is the largest year on record at $1,439, 9.7 times the $148 reported in 2022. That places this record below the midpoint for colon & rectal surgery clinicians in IL, where the typical reported total is $3,320.
Across 14 payments — averaging $186.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$1K
- Applied Medical Resources Corporation$951
- Stryker$239
- Johnson & Johnson$148
- Boston Scientific$122
- Smith+Nephew$53
- plus $48 from 2 others
What the payments were for
- Travel & lodging$88434%
- Food & beverage$46818%
- Education$1,25948%
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 | 3 | $1,049 |
| Applied Medical Resources Corporation | 2 | $951 |
| Stryker | 1 | $239 |
| Johnson & Johnson | 2 | $148 |
| Boston Scientific | 3 | $122 |
| Smith+Nephew | 1 | $53 |
| Iovance Biotherapeutics, Inc. | 1 | $26 |
| Coloplast | 1 | $23 |
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.
- DAVINCI XI$1,000
- Gelport Laparoscopic System$884
- Enseal X1$128
- VISTASEAL$128
- Harmonic$128
How this compares
$2,611 in reported general payments places this provider in the 40th percentile of 79 colon & rectal surgery 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 |
|---|---|---|
| Pantoprazole Sodium | 11 | $188 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Springfield
- David StewartSpringfield$9K
- James ThieleSpringfield$2K
- Jac CooperSpringfield$1K
- Jan RakinicSpringfield$1K
- Marc SingerChicago$201K
- Francisco QuinterosChicago$119K
- Lawrence PrabhakerRockford$81K
- Konstantin UmanskiyChicago$30K
- Vitaliy PoylinChicago$26K
- Monika KrezalekHighland Park$23K
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.