Karla Witzke, DO
Urology · Midland, MINPI 1922202258
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $13,200 of the $18,381 with a category attached, or 71.8%. Olympus America Inc. accounts for 75.2% of it on its own, with 18 other manufacturers making up the rest.
Across 174 payments — averaging $105.64 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Olympus America Inc.$14K
- Medtronic$1K
- Axonics, Inc.$935
- Boston Scientific$363
- Teleflex LLC$334
- Coloplast$298
- plus $1K from 13 others
What the payments were for
- Speaking & faculty fees$13,20072%
- Food & beverage$5,05628%
- Education$1251%
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 |
|---|---|---|
| Olympus America Inc. | 39 | $13,822 |
| Medtronic(2 entities) | 61 | $1,340 |
| Axonics, Inc. | 36 | $935 |
| Boston Scientific | 5 | $363 |
| Teleflex LLC | 6 | $334 |
| Coloplast | 3 | $298 |
| Tempus AI, Inc | 3 | $259 |
| Olympus Corporation Of The Americas | 3 | $256 |
| Neotract Inc. | 3 | $166 |
| Procept Biorobotics Corporation | 2 | $165 |
| AstraZeneca | 5 | $134 |
| Johnson & Johnson | 1 | $100 |
| Urogen Pharma, Inc. | 1 | $78 |
| Astellas Pharma US Inc | 1 | $43 |
| Calyxo, Inc. | 1 | $27 |
| Palette Life Sciences, Inc. | 1 | $25 |
| Myovant Sciences Inc. | 1 | $24 |
| Cook Medical LLC | 1 | $12 |
| Travere Therapeutics, Inc. | 1 | $1 |
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.
- iTIND System$13,456
- Soltive$8,100
- Axonics r-SNM System$300
- Bulkamid$241
- Axonics$209
- TITAN$206
- Barrigel$164
- GENERAL ERECTILE DYSFUNCTION$141
- UroLift$123
- AquaBeam Robotic System$111
- SPACEOAR VUE$109
- XT CDX$100
How this compares
$18,381 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 | 204 | $170,840 |
| ElmironPentosan Polysulfate Sodium | 33 | $36,981 |
| Mirabegron ErMirabegron | 53 | $33,743 |
| Tamsulosin Hcl | 1,247 | $24,860 |
| GemtesaVibegron | 15 | $18,746 |
| Trospium Chloride | 283 | $14,410 |
| Trospium Chloride ErTrospium Chloride | 63 | $13,437 |
| Finasteride | 639 | $11,582 |
| Estradiol | 191 | $11,454 |
| Potassium Citrate ErPotassium Citrate | 73 | $6,127 |
| Silodosin | 54 | $4,639 |
| Alfuzosin Hcl ErAlfuzosin Hcl | 133 | $3,130 |
| Solifenacin Succinate | 52 | $3,045 |
| Bethanechol Chloride | 32 | $1,819 |
| Oxybutynin Chloride ErOxybutynin Chloride | 53 | $1,601 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Astellas Pharma US IncMyrbetriq | $43 | $170,840204 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 85th percentile of 400 urology providers in Michigan.
Other urology in Midland
- Ashok ReddySterling Heights$4.9M
- William RobertsAnn Arbor$973K
- Kenneth KernenTroy$910K
- William JohnstonLivonia$675K
- Jason HafronWest Bloomfield$490K
- Khurshid GhaniAnn Arbor$413K
- Richard BennettRoyal Oak$361K
- Ryan NelsonUtica$296K
- Casey DauwAnn Arbor$188K
- Aram LoebDetroit$112K
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.