Payment overview · 2025
General Payments
68 reported records · 11 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Internal Medicine · ANN ARBOR, MI · NPI 1659318640
Verified facts
CMS Open Payments records show Ulka Nitin Vaishampayan, MD received $70,927.41 in general payments during 2025 across 68 reported records.
E.R. Squibb & Sons, L.L.C. accounted for 34.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 13 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Cabometyx, Fotivda, Nubeqa, Xtandi.
Aveo Pharmaceuticals, 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 FOTIVDA as an associated drug or biological on 6531 records involving 3922 distinct recipient NPIs. Public Medicare Part D data also shows 33 claims for Fotivda by this doctor in 2024.
Bayer Healthcare Pharmaceuticals 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 Nubeqa as an associated drug or biological on 24369 records involving 9557 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Nubeqa by this doctor in 2024.
E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Eliquis by this doctor in 2024.
Exelixis 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 CABOMETYX as an associated drug or biological on 11749 records involving 4526 distinct recipient NPIs. Public Medicare Part D data also shows 85 claims for Cabometyx by this doctor in 2024.
Merck Sharp & Dohme LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported LENVIMA as an associated drug or biological on 66 records involving 58 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Lenvima by this doctor in 2024.
Merck Sharp & Dohme LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported WELIREG as an associated drug or biological on 8369 records involving 5216 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Welireg by this doctor in 2024.
PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Eliquis by this doctor in 2024.
PFIZER 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 INLYTA as an associated drug or biological on 2646 records involving 1964 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Inlyta by this doctor in 2024.
PFIZER 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Xtandi by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
68 reported records · 11 companies
Separate record types
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?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $24,613.50 | 34.7% | 24 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $17,685.65 | 24.9% | 10 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $10,653.54 | 15.0% | 6 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $9,303.59 | 13.1% | 13 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $3,234.84 | 4.6% | 5 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $2,240.00 | 3.2% | 1 | 2025 |
| Exelixis Inc. | Unresolved — no canonical attribution shown | $2,212.29 | 3.1% | 4 | 2025 |
| Daiichi Sankyo Inc. | Unresolved — no canonical attribution shown | $650.00 | 0.9% | 1 | 2025 |
| Aveo Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $216.99 | 0.3% | 2 | 2025 |
| Tempus AI, Inc | Unresolved — no canonical attribution shown | $73.76 | 0.1% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $43.25 | 0.1% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Consulting Fee | $60,747.05 | 18 |
| Travel and Lodging | $6,609.86 | 22 |
| Honoraria | $1,980.00 | 1 |
| Food and Beverage | $1,385.79 | 24 |
| Education | $143.24 | 2 |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $61.47 | 1 |
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
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Nubeqa Normalized: nubeqa |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $10,653.54 | 6 | 2025 |
Source payment records
|
|||||
| PLUVICTO Normalized: pluvicto |
Drug | Novartis Pharmaceuticals Corporation | $9,947.52 | 5 | 2025 |
Source payment records
|
|||||
| ERLEADA Normalized: erleada |
Drug | Janssen Biotech, Inc. | $9,303.59 | 13 | 2025 |
Source payment records
|
|||||
| AKEEGA Normalized: akeega |
Drug | Janssen Biotech, Inc. | $7,916.09 | 12 | 2025 |
Source payment records
|
|||||
| TALZENNA Normalized: talzenna |
Drug | PFIZER INC. | $3,234.84 | 5 | 2025 |
Source payment records
|
|||||
| CABOMETYX Normalized: cabometyx |
Drug | Exelixis Inc. | $2,212.29 | 4 | 2025 |
Source payment records
|
|||||
| Vanflyta Normalized: vanflyta |
Drug | Daiichi Sankyo Inc. | $650.00 | 1 | 2025 |
Source payment records
|
|||||
| FOTIVDA Normalized: fotivda |
Drug | Aveo Pharmaceuticals, Inc. | $216.99 | 2 | 2025 |
Source payment records
|
|||||
| ORGOVYX Normalized: orgovyx |
Drug | PFIZER INC. | $120.85 | 1 | 2025 |
Source payment records
|
|||||
| PADCEV Normalized: padcev |
Biological | PFIZER INC. | $120.85 | 1 | 2025 |
Source payment records
|
|||||
| XTANDI Normalized: xtandi |
Drug | PFIZER INC. | $120.85 | 1 | 2025 |
Source payment records
|
|||||
| XT CDX Normalized: xt cdx |
Device | Tempus AI, Inc | $73.76 | 1 | 2025 |
Source payment records
|
|||||
| ENHERTU Normalized: enhertu |
Biological | AstraZeneca Pharmaceuticals LP | $43.25 | 1 | 2025 |
Source payment records
|
|||||
* 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.
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| CABOMETYX cabometyx |
2025 | Cabometyx | 2024 | 85 | exact normalized | Medicare Part D |
| FOTIVDA fotivda |
2025 | Fotivda | 2024 | 33 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Nubeqa nubeqa |
2025 | Nubeqa | 2024 | 24 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| XTANDI xtandi |
2025 | Xtandi | 2024 | 31 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
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 |
|---|---|---|---|---|---|---|
| Aveo Pharmaceuticals, Inc. Exact reporting entity; no affiliate inference |
2025 | FOTIVDA open payments reported associated product |
CMS Open Payments — General Payments 6531 supporting records · 3922 recipient NPIs · example record 1199896322 |
Fotivda · 2024 Exact normalized brand match · 1 Part D row |
33 | suppressed by CMS |
| Bayer Healthcare Pharmaceuticals Inc. Exact reporting entity; no affiliate inference |
2025 | Nubeqa open payments reported associated product |
CMS Open Payments — General Payments 24369 supporting records · 9557 recipient NPIs · example record 1225434669 |
Nubeqa · 2024 Exact normalized brand match · 1 Part D row |
24 | suppressed by CMS |
| E.R. Squibb & Sons, L.L.C. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 27956 supporting records · 14870 recipient NPIs · example record 1184377713 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
19 | suppressed by CMS |
| Exelixis Inc. Exact reporting entity; no affiliate inference |
2025 | CABOMETYX open payments reported associated product |
CMS Open Payments — General Payments 11749 supporting records · 4526 recipient NPIs · example record 1218789893 |
Cabometyx · 2024 Exact normalized brand match · 1 Part D row |
85 | 20 |
| Merck Sharp & Dohme LLC Exact reporting entity; no affiliate inference |
2025 | LENVIMA open payments reported associated product |
CMS Open Payments — General Payments 66 supporting records · 58 recipient NPIs · example record 1237995778 |
Lenvima · 2024 Exact normalized brand match · 1 Part D row |
17 | suppressed by CMS |
| Merck Sharp & Dohme LLC Exact reporting entity; no affiliate inference |
2025 | WELIREG open payments reported associated product |
CMS Open Payments — General Payments 8369 supporting records · 5216 recipient NPIs · example record 1237992280 |
Welireg · 2024 Exact normalized brand match · 1 Part D row |
16 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 87112 supporting records · 36032 recipient NPIs · example record 1228794063 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
19 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | INLYTA open payments reported associated product |
CMS Open Payments — General Payments 2646 supporting records · 1964 recipient NPIs · example record 1228795917 |
Inlyta · 2024 Exact normalized brand match · 1 Part D row |
24 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 19368 supporting records · 7657 recipient NPIs · example record 1228794230 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
31 | 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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Prednisone | Prednisone | 101 | 43 |
| Cabometyx | Cabozantinib S-Malate | 85 | 20 |
| Abiraterone Acetate | Abiraterone Acetate | 52 | suppressed |
| Bicalutamide | Bicalutamide | 51 | 11 |
| Oxycodone Hcl | Oxycodone Hcl | 36 | 13 |
| Levothyroxine Sodium | Levothyroxine Sodium | 35 | 12 |
| Morphine Sulfate Er | Morphine Sulfate | 34 | 11 |
| Fotivda | Tivozanib Hcl | 33 | suppressed |
| Xtandi | Enzalutamide | 31 | suppressed |
| Hydrocortisone | Hydrocortisone | 26 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 25 | 13 |
| Inlyta | Axitinib | 24 | suppressed |
| Nubeqa | Darolutamide | 24 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 23 | 14 |
| Dexamethasone | Dexamethasone | 22 | suppressed |
| Amlodipine Besylate | Amlodipine Besylate | 20 | suppressed |
| Eliquis | Apixaban | 19 | suppressed |
| Alprazolam | Alprazolam | 17 | suppressed |
| Lenvima | Lenvatinib Mesylate | 17 | suppressed |
| Gabapentin | Gabapentin | 16 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 16 | suppressed |
| Welireg | Belzutifan | 16 | suppressed |
| Everolimus | Everolimus | 13 | suppressed |
| Fludrocortisone Acetate | Fludrocortisone Acetate | 12 | suppressed |
| Nystatin | Nystatin | 11 | suppressed |
Timeline
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 | $70,927.41 · 68 records | E.R. Squibb & Sons, L.L.C. | AKEEGA, CABOMETYX, ENHERTU, ERLEADA, FOTIVDA, Nubeqa, ORGOVYX, PADCEV, PLUVICTO, TALZENNA, Vanflyta, XT CDX, XTANDI | 9 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| 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