Payment overview · 2025
General Payments
18 reported records · 9 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Family Medicine · SAUGATUCK, MI · NPI 1568725190
Verified facts
CMS Open Payments records show Nathan Daniel Wass, D.O. received $371.46 in general payments during 2025 across 18 reported records.
Novo Nordisk Inc accounted for 29.2% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 15 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Mounjaro, Ozempic.
AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Farxiga by this doctor in 2024.
Boehringer Ingelheim 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Jardiance by this doctor in 2024.
Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Jardiance by this doctor in 2024.
Lilly USA, 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 40 claims for Mounjaro by this doctor in 2024.
Lilly USA, 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Trulicity by this doctor in 2024.
Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 41 claims for Ozempic 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 91 claims for Eliquis by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
18 reported records · 9 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 |
|---|---|---|---|---|---|
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $108.65 | 29.2% | 5 | 2025 |
| Antares Pharma, Inc. | Unresolved — no canonical attribution shown | $56.91 | 15.3% | 3 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $48.62 | 13.1% | 2 | 2025 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $38.75 | 10.4% | 2 | 2025 |
| Corium, LLC | Unresolved — no canonical attribution shown | $33.63 | 9.1% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $30.99 | 8.3% | 2 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $19.92 | 5.4% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $18.46 | 5.0% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $15.53 | 4.2% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $352.61 | 17 |
| Education | $18.85 | 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 |
|---|---|---|---|---|---|
| XYOSTED Normalized: xyosted |
Drug | Antares Pharma, Inc. | $56.91 | 3 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $48.62 | 2 | 2025 |
Source payment records
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $48.62 | 2 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $42.68 | 2 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $42.65 | 2 | 2025 |
Source payment records
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| JARDIANCE Normalized: jardiance |
Drug | Boehringer Ingelheim Pharmaceuticals, Inc. | $38.75 | 2 | 2025 |
Source payment records
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| Azstarys Normalized: azstarys |
Drug | Corium, LLC | $33.63 | 1 | 2025 |
Source payment records
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| OTEZLA Normalized: otezla |
Drug | Amgen Inc. | $19.92 | 1 | 2025 |
Source payment records
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| REPATHA Normalized: repatha |
Biological | Amgen Inc. | $19.92 | 1 | 2025 |
Source payment records
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| NURTEC ODT Normalized: nurtec odt |
Drug | PFIZER INC. | $18.46 | 1 | 2025 |
Source payment records
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| ZAVZPRET Normalized: zavzpret |
Drug | PFIZER INC. | $18.46 | 1 | 2025 |
Source payment records
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| BREZTRI Normalized: breztri |
Drug | AstraZeneca Pharmaceuticals LP | $16.01 | 1 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $15.53 | 1 | 2025 |
Source payment records
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| ZEPBOUND Normalized: zepbound |
Drug | Lilly USA, LLC | $15.53 | 1 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $14.98 | 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.
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| JARDIANCE jardiance |
2025 | Jardiance | 2024 | 32 | exact normalized | Medicare Part D |
| MOUNJARO mounjaro |
2025 | Mounjaro | 2024 | 40 | exact normalized | Medicare Part D |
| Ozempic ozempic |
2025 | Ozempic | 2024 | 41 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 |
|---|---|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | FARXIGA open payments reported associated product |
CMS Open Payments — General Payments 106133 supporting records · 42906 recipient NPIs · example record 1206131362 |
Farxiga · 2024 Exact normalized brand match · 1 Part D row |
26 | suppressed by CMS |
| Boehringer Ingelheim Pharmaceuticals, Inc. Exact reporting entity; no affiliate inference |
2025 | JARDIANCE open payments reported associated product |
CMS Open Payments — General Payments 123636 supporting records · 49438 recipient NPIs · example record 1221811583 |
Jardiance · 2024 Exact normalized brand match · 1 Part D row |
32 | 14 |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | JARDIANCE open payments reported associated product |
CMS Open Payments — General Payments 47708 supporting records · 23833 recipient NPIs · example record 1186464557 |
Jardiance · 2024 Exact normalized brand match · 1 Part D row |
32 | 14 |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | MOUNJARO open payments reported associated product |
CMS Open Payments — General Payments 186719 supporting records · 66436 recipient NPIs · example record 1186464455 |
Mounjaro · 2024 Exact normalized brand match · 1 Part D row |
40 | 11 |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | TRULICITY open payments reported associated product |
CMS Open Payments — General Payments 71 supporting records · 57 recipient NPIs · example record 1186464601 |
Trulicity · 2024 Exact normalized brand match · 1 Part D row |
14 | suppressed by CMS |
| Novo Nordisk Inc Exact reporting entity; no affiliate inference |
2025 | Ozempic open payments reported associated product |
CMS Open Payments — General Payments 261625 supporting records · 77793 recipient NPIs · example record 1188130076 |
Ozempic · 2024 Exact normalized brand match · 1 Part D row |
41 | 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 |
91 | 30 |
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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 309 | 126 |
| Lisinopril | Lisinopril | 215 | 88 |
| Amlodipine Besylate | Amlodipine Besylate | 174 | 72 |
| Omeprazole | Omeprazole | 171 | 64 |
| Levothyroxine Sodium | Levothyroxine Sodium | 156 | 62 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 138 | 68 |
| Metformin Hcl | Metformin Hcl | 103 | 44 |
| Metoprolol Succinate | Metoprolol Succinate | 103 | 45 |
| Losartan Potassium | Losartan Potassium | 102 | 50 |
| Tamsulosin Hcl | Tamsulosin Hcl | 95 | 39 |
| Eliquis | Apixaban | 91 | 30 |
| Trazodone Hcl | Trazodone Hcl | 89 | 34 |
| Gabapentin | Gabapentin | 85 | 32 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 84 | 35 |
| Pantoprazole Sodium | Pantoprazole Sodium | 84 | 40 |
| Sertraline Hcl | Sertraline Hcl | 81 | 28 |
| Simvastatin | Simvastatin | 71 | 31 |
| Furosemide | Furosemide | 67 | 27 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 63 | 34 |
| Allopurinol | Allopurinol | 62 | 23 |
| Pravastatin Sodium | Pravastatin Sodium | 62 | 27 |
| Hydrochlorothiazide | Hydrochlorothiazide | 60 | 25 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 58 | 11 |
| Prednisone | Prednisone | 57 | 38 |
| Montelukast Sodium | Montelukast Sodium | 56 | 22 |
| Carvedilol | Carvedilol | 52 | 20 |
| Pregabalin | Pregabalin | 52 | 18 |
| Clopidogrel | Clopidogrel Bisulfate | 46 | 20 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 46 | 19 |
| Topiramate | Topiramate | 46 | 15 |
| Tizanidine Hcl | Tizanidine Hcl | 45 | 15 |
| Duloxetine Hcl | Duloxetine Hcl | 44 | 21 |
| Ozempic | Semaglutide | 41 | suppressed |
| Mounjaro | Tirzepatide | 40 | 11 |
| Celecoxib | Celecoxib | 37 | 16 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 36 | 17 |
| Fluticasone Propionate | Fluticasone Propionate | 36 | 14 |
| Meloxicam | Meloxicam | 35 | 15 |
| Jardiance | Empagliflozin | 32 | 14 |
| Cephalexin | Cephalexin | 31 | 22 |
| Potassium Chloride | Potassium Chloride | 30 | 17 |
| Famotidine | Famotidine | 28 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 28 | 12 |
| Lovastatin | Lovastatin | 28 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 28 | suppressed |
| Bupropion Xl | Bupropion Hcl | 27 | 12 |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 27 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 27 | 16 |
| Baclofen | Baclofen | 26 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 26 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 26 | 12 |
| Quetiapine Fumarate | Quetiapine Fumarate | 26 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 25 | suppressed |
| Finasteride | Finasteride | 25 | 12 |
| Lorazepam | Lorazepam | 25 | 14 |
| Sumatriptan Succinate | Sumatriptan Succinate | 24 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 24 | 13 |
| Pioglitazone Hcl | Pioglitazone Hcl | 23 | 11 |
| Testosterone Cypionate | Testosterone Cypionate | 23 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 22 | suppressed |
| Glipizide Er | Glipizide | 22 | 11 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 22 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 22 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 22 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 21 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 21 | suppressed |
| Ibuprofen | Ibuprofen | 21 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 21 | suppressed |
| Atenolol | Atenolol | 20 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 20 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 20 | 12 |
| Mirtazapine | Mirtazapine | 20 | suppressed |
| Incruse Ellipta | Umeclidinium Bromide | 19 | suppressed |
| Xarelto | Rivaroxaban | 19 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 18 | suppressed |
| Nabumetone | Nabumetone | 18 | suppressed |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 18 | suppressed |
| Azithromycin | Azithromycin | 17 | 12 |
| Memantine Hcl | Memantine Hcl | 17 | suppressed |
| Methocarbamol | Methocarbamol | 17 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 17 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 17 | suppressed |
| Spironolactone | Spironolactone | 17 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 17 | suppressed |
| Chlorthalidone | Chlorthalidone | 16 | suppressed |
| Januvia | Sitagliptin Phosphate | 16 | suppressed |
| Clonazepam | Clonazepam | 15 | suppressed |
| Doxycycline Hyclate | Doxycycline Hyclate | 15 | 13 |
| Estradiol | Estradiol | 15 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 15 | suppressed |
| Trulicity | Dulaglutide | 14 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 13 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 13 | suppressed |
| Levocetirizine Dihydrochloride | Levocetirizine Dihydrochloride | 13 | suppressed |
| Terazosin Hcl | Terazosin Hcl | 13 | suppressed |
| Venlafaxine Hcl | Venlafaxine Hcl | 13 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 12 | suppressed |
| Bumetanide | Bumetanide | 12 | suppressed |
| Digoxin | Digoxin | 12 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 12 | suppressed |
| Novolog Flexpen | Insulin Aspart | 12 | suppressed |
| Nystatin | Nystatin | 12 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 12 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 12 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 11 | suppressed |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 11 | suppressed |
| Enalapril Maleate | Enalapril Maleate | 11 | suppressed |
| Ezetimibe | Ezetimibe | 11 | suppressed |
| Glipizide | Glipizide | 11 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 11 | suppressed |
| Morphine Sulfate Er | Morphine Sulfate | 11 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 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 | $371.46 · 18 records | Novo Nordisk Inc | AIRSUPRA, Azstarys, BREZTRI, JARDIANCE, MOUNJARO, NURTEC ODT, OTEZLA, Ozempic, QULIPTA, REPATHA, UBRELVY, Wegovy, XYOSTED, ZAVZPRET, ZEPBOUND | 7 | — |
| 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