John Stoffel, MD
Urology · Ann Arbor, MINPI 1952458994
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $16,500 of the $16,994 with a category attached, or 97.1%. Flume Catheter Company Inc. accounts for 97.1% of it on its own, with 4 other manufacturers making up the rest. Reporting peaked in 2024 at $6,212 and has fallen 98.5% since, to $94 in 2025.
Across 11 payments — averaging $1544.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Flume Catheter Company Inc.$17K
- Boston Scientific$224
- Coloplast$157
- Medtronic$94
- Ferring Pharmaceuticals Inc.$19
Across 17 payments — averaging $4013.64 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Coloplast$61K
- Ipsen Innovation$7K
What the payments were for
- Consulting fees$16,50097%
- Food & beverage$4943%
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 |
|---|---|---|
| Flume Catheter Company Inc. | 3 | $16,500 |
| Boston Scientific | 3 | $224 |
| Coloplast | 3 | $157 |
| Medtronic | 1 | $94 |
| Ferring Pharmaceuticals Inc. | 1 | $19 |
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.
- FLUME catheter$16,500
How this compares
$16,994 in reported general payments places this provider in the 85th percentile of 400 urology providers in Michigan.
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 |
|---|---|---|
| MyrbetriqMirabegron | 305 | $216,468 |
| Mirabegron ErMirabegron | 55 | $39,177 |
| GemtesaVibegron | 24 | $28,367 |
| Methenamine Hippurate | 86 | $11,097 |
| Trospium Chloride ErTrospium Chloride | 33 | $8,010 |
| Gentamicin Sulfate | 135 | $6,764 |
| Fosfomycin Tromethamine | 16 | $5,059 |
| Tamsulosin Hcl | 192 | $3,612 |
| Darifenacin ErDarifenacin Hydrobromide | 11 | $3,362 |
| Oxybutynin Chloride ErOxybutynin Chloride | 99 | $3,351 |
| Trospium Chloride | 34 | $3,104 |
| Estradiol | 30 | $2,630 |
| Tolterodine Tartrate ErTolterodine Tartrate | 25 | $2,060 |
| Finasteride | 79 | $1,315 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 50 | $1,258 |
Paid to pharmacies, not to this prescriber.
Other urology in Ann Arbor
- William RobertsAnn Arbor$973K
- Khurshid GhaniAnn Arbor$413K
- Casey DauwAnn Arbor$188K
- Bahaa MalaebAnn Arbor$98K
- James ClemensAnn Arbor$63K
- Todd MorganAnn Arbor$34K
- Stephanie KielbAnn Arbor$26K
- Yooni BlairAnn Arbor$22K
- Lindsey HerrelAnn Arbor$15K
- Ashok ReddySterling Heights$4.9M
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.