Payment overview · 2025
General Payments
$3,987.82
67 reported records · 24 companies
Healthcare provider profile · identity verified
Michael William Witthaus, M.D.
Allopathic & Osteopathic Physicians|Urology · SAN DIEGO, CA · NPI 1871987180
Verified facts
What the public records show
CMS Open Payments records show Michael William Witthaus, M.D. received $3,987.82 in general payments during 2025 across 67 reported records.
Boston Scientific Corporation accounted for 57.6% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 33 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Gemtesa.
Astellas Pharma US Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Myrbetriq as an associated drug or biological on 16 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Myrbetriq by this doctor in 2024.
Sumitomo Pharma America, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported GEMTESA as an associated drug or biological on 61692 records involving 22152 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Gemtesa by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Separate record types
Research & Ownership
Research Payments (direct recipient): not present in the loaded data
Associated Research Funding (for example, named PI): not present in the loaded data
Ownership / Investment: not present in the loaded data
These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.
Who paid this doctor?
Companies in 2025 General Payments
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $2,295.87 | 57.6% | 11 | 2025 |
| COLOPLAST CORP | Unresolved — no canonical attribution shown | $395.23 | 9.9% | 8 | 2025 |
| Endo USA, Inc. | Unresolved — no canonical attribution shown | $238.45 | 6.0% | 9 | 2025 |
| Rigicon,Inc. | Unresolved — no canonical attribution shown | $100.28 | 2.5% | 1 | 2025 |
| Caldera Medical, Inc | Unresolved — no canonical attribution shown | $95.72 | 2.4% | 1 | 2025 |
| Sumitomo Pharma America, Inc. | Unresolved — no canonical attribution shown | $86.65 | 2.2% | 4 | 2025 |
| PROGENICS PHARMACEUTICALS, INC. | Unresolved — no canonical attribution shown | $77.91 | 1.9% | 3 | 2025 |
| UROGEN PHARMA, INC. | Unresolved — no canonical attribution shown | $68.34 | 1.7% | 3 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $65.96 | 1.6% | 3 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $65.59 | 1.6% | 3 | 2025 |
| Antares Pharma, Inc. | Unresolved — no canonical attribution shown | $61.51 | 1.5% | 2 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $51.66 | 1.3% | 2 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $49.58 | 1.2% | 2 | 2025 |
| Tempus AI, Inc | Unresolved — no canonical attribution shown | $47.42 | 1.2% | 2 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $46.82 | 1.2% | 2 | 2025 |
| Valencia Technologies Corporation | Unresolved — no canonical attribution shown | $46.27 | 1.2% | 2 | 2025 |
| IMMUNITYBIO, INC. | Unresolved — no canonical attribution shown | $33.92 | 0.8% | 1 | 2025 |
| Astellas Pharma US Inc | Unresolved — no canonical attribution shown | $30.46 | 0.8% | 1 | 2025 |
| TOLMAR, INC. | Unresolved — no canonical attribution shown | $30.37 | 0.8% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $25.92 | 0.7% | 1 | 2025 |
| BIOPROTECT MEDICAL, INC. | Unresolved — no canonical attribution shown | $25.66 | 0.6% | 1 | 2025 |
| Ferring Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $18.37 | 0.5% | 1 | 2025 |
| Medtronic, Inc. |
Medtronic, Inc. exact · evidence 2025-07-22 |
$17.70 | 0.4% | 1 | 2025 |
| Laborie Medical Technologies Corp. | Unresolved — no canonical attribution shown | $12.16 | 0.3% | 2 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Grant | $2,000.00 | 1 |
| Food and Beverage | $1,987.82 | 66 |
A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.
Analysis 1 · Payment-linked products
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| General - Erectile Dysfunction Normalized: general erectile dysfunction |
Device | Boston Scientific Corporation | $2,000.00 | 1 | 2025 |
Source payment records
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| Titan Normalized: titan |
Device | COLOPLAST CORP | $311.02 | 2 | 2025 |
Source payment records
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| AVEED Normalized: aveed |
Biological | Endo USA, Inc. | $238.45 | 9 | 2025 |
Source payment records
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| XIAFLEX Normalized: xiaflex |
Biological | Endo USA, Inc. | $238.45 | 9 | 2025 |
Source payment records
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| AMS 800 Artificial Urinary Sphincter Normalized: ams 800 artificial urinary sphincter |
Device | Boston Scientific Corporation | $154.93 | 2 | 2025 |
Source payment records
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| Rigi10 Normalized: rigi10 |
Device | Rigicon,Inc. | $100.28 | 1 | 2025 |
Source payment records
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| ORGOVYX Normalized: orgovyx |
Drug | PFIZER INC., Sumitomo Pharma America, Inc. | $92.98 | 4 | 2025 |
Source payment records
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| SpeediCath Normalized: speedicath |
Device | COLOPLAST CORP | $84.21 | 6 | 2025 |
Source payment records
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| XTANDI Normalized: xtandi |
Drug | Astellas Pharma US Inc, PFIZER INC. | $82.12 | 3 | 2025 |
Source payment records
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| AMS 700 Normalized: ams 700 |
Device | Boston Scientific Corporation | $78.93 | 6 | 2025 |
Source payment records
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| PYLARIFY Normalized: pylarify |
Drug | PROGENICS PHARMACEUTICALS, INC. | $77.91 | 3 | 2025 |
Source payment records
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| Nubeqa Normalized: nubeqa |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $65.59 | 3 | 2025 |
Source payment records
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| Xofigo Normalized: xofigo |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $65.59 | 3 | 2025 |
Source payment records
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| Axonics Normalized: axonics |
Device | Boston Scientific Corporation | $62.01 | 2 | 2025 |
Source payment records
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| XYOSTED Normalized: xyosted |
Drug | Antares Pharma, Inc. | $61.51 | 2 | 2025 |
Source payment records
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| EDEX Normalized: edex |
Drug | Endo USA, Inc. | $56.85 | 2 | 2025 |
Source payment records
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| TALZENNA Normalized: talzenna |
Drug | PFIZER INC. | $51.66 | 2 | 2025 |
Source payment records
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| ERLEADA Normalized: erleada |
Drug | Janssen Biotech, Inc. | $49.58 | 2 | 2025 |
Source payment records
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| BOTOX Normalized: botox |
Biological | ABBVIE INC. | $49.55 | 2 | 2025 |
Source payment records
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| XT CDX Normalized: xt cdx |
Device | Tempus AI, Inc | $47.42 | 2 | 2025 |
Source payment records
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| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $46.82 | 2 | 2025 |
Source payment records
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| eCoin Device Kit Normalized: ecoin device kit |
Device | Valencia Technologies Corporation | $46.27 | 2 | 2025 |
Source payment records
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| GEMTESA Normalized: gemtesa |
Drug | Sumitomo Pharma America, Inc. | $45.33 | 2 | 2025 |
Source payment records
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| ANKTIVA Normalized: anktiva |
Drug | IMMUNITYBIO, INC. | $33.92 | 1 | 2025 |
Source payment records
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| ELIGARD Normalized: eligard |
Drug | TOLMAR, INC. | $30.37 | 1 | 2025 |
Source payment records
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| JATENZO Normalized: jatenzo |
Drug | TOLMAR, INC. | $30.37 | 1 | 2025 |
Source payment records
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| LYNPARZA Normalized: lynparza |
Drug | AstraZeneca Pharmaceuticals LP | $25.92 | 1 | 2025 |
Source payment records
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| BIOPROTECT BALLOON IMPLANT SYSTEM Normalized: bioprotect balloon implant system |
Device | BIOPROTECT MEDICAL, INC. | $25.66 | 1 | 2025 |
Source payment records
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| JELMYTO Normalized: jelmyto |
Drug | UROGEN PHARMA, INC. | $24.64 | 1 | 2025 |
Source payment records
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| ADSTILADRIN Normalized: adstiladrin |
Biological | Ferring Pharmaceuticals Inc. | $18.37 | 1 | 2025 |
Source payment records
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| INTERSTIM Normalized: interstim |
Device | Medtronic, Inc. | $17.70 | 1 | 2025 |
Source payment records
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| LUPRON DEPOT Normalized: lupron depot |
Drug | ABBVIE INC. | $16.41 | 1 | 2025 |
Source payment records
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| Optilume BPH Drug Coated Balloon Catheter Normalized: optilume bph drug coated balloon catheter |
Device | Laborie Medical Technologies Corp. | $6.82 | 1 | 2025 |
Source payment records
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* Product-associated amounts are non-additive because one payment record may name more than one product.
These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.
Public prescribing for products named in payments
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| GEMTESA gemtesa |
2025 | Gemtesa | 2024 | 17 Beneficiary count suppressed |
exact normalized | Medicare Part D |
The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.
Analysis 2 · Same-company prescribing overlap
Drugs reported in other payments from the same company that also appear in Medicare Part D
This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.
| Paying company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| Astellas Pharma US Inc Exact reporting entity; no affiliate inference |
2025 | Myrbetriq open payments reported associated product |
CMS Open Payments — General Payments 16 supporting records · 16 recipient NPIs · example record 1238599014 |
Myrbetriq · 2024 Exact normalized brand match · 1 Part D row |
30 | suppressed by CMS |
| Sumitomo Pharma America, Inc. Exact reporting entity; no affiliate inference |
2025 | GEMTESA open payments reported associated product |
CMS Open Payments — General Payments 61692 supporting records · 22152 recipient NPIs · example record 1176593503 |
Gemtesa · 2024 Exact normalized brand match · 1 Part D row |
17 | suppressed by CMS |
These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.
Public Medicare Part D data
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 192 | 73 |
| Finasteride | Finasteride | 60 | 22 |
| Oxycodone Hcl | Oxycodone Hcl | 60 | 53 |
| Cephalexin | Cephalexin | 50 | 41 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 48 | 30 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 44 | 29 |
| Gabapentin | Gabapentin | 31 | 27 |
| Myrbetriq | Mirabegron | 30 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 28 | 11 |
| Gemtesa | Vibegron | 17 | suppressed |
| Meloxicam | Meloxicam | 16 | 11 |
| Trospium Chloride | Trospium Chloride | 16 | suppressed |
| Levofloxacin | Levofloxacin | 15 | 11 |
| Solifenacin Succinate | Solifenacin Succinate | 15 | suppressed |
| Mirabegron Er | Mirabegron | 12 | suppressed |
Timeline
Payment and prescribing data by year
Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $3,987.82 · 67 records | Boston Scientific Corporation | ADSTILADRIN, AMS 700, AMS 800 Artificial Urinary Sphincter, ANKTIVA, AVEED, Axonics, BIOPROTECT BALLOON IMPLANT SYSTEM, BOTOX, EDEX, ELIGARD, ERLEADA, GEMTESA, General - Erectile Dysfunction, INTERSTIM, JATENZO, JELMYTO, KEYTRUDA, LUPRON DEPOT, LYNPARZA, Nubeqa, ORGOVYX, Optilume BPH Drug Coated Balloon Catheter, PYLARIFY, Rigi10, SpeediCath, TALZENNA, Titan, XIAFLEX, XT CDX, XTANDI, XYOSTED, Xofigo, eCoin Device Kit | 2 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Gemtesa play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Astellas Pharma US Inc?
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| Dataset | Year | Publication | Source |
|---|---|---|---|
| CMS Open Payments — General Payments | 2025 | 2026-06-30 | Original source |
| Medicare Part D Prescribers by Provider and Drug | 2024 | 2026-05-06 | Original source |
| NPPES Data Dissemination V2 | current / reference data | 2026-08-10 | Original source |
Full methodology · Questions & answers · Report a possible error