Payment overview · 2025
General Payments
$244.06
10 reported records · 7 companies
Healthcare provider profile · identity verified
Michael Angelo Tan, MD
Allopathic & Osteopathic Physicians|Internal Medicine · MORRISTOWN, TN · NPI 1669499208
Verified facts
What the public records show
CMS Open Payments records show Michael Angelo Tan, MD received $244.06 in general payments during 2025 across 10 reported records.
UCB, Inc. accounted for 44.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 8 associated products.
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 |
|---|---|---|---|---|---|
| UCB, Inc. | Unresolved — no canonical attribution shown | $107.47 | 44.0% | 3 | 2025 |
| Paratek Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $34.62 | 14.2% | 2 | 2025 |
| Neurocrine BioSciences, Inc. | Unresolved — no canonical attribution shown | $26.29 | 10.8% | 1 | 2025 |
| Otsuka America Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $22.83 | 9.3% | 1 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $20.04 | 8.2% | 1 | 2025 |
| Phathom Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $16.54 | 6.8% | 1 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $16.27 | 6.7% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $227.79 | 9 |
| Education | $16.27 | 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
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Briviact Normalized: briviact |
Drug | UCB, Inc. | $68.08 | 2 | 2025 |
Source payment records
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| Rystiggo Normalized: rystiggo |
Drug | UCB, Inc. | $39.39 | 1 | 2025 |
Source payment records
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| NUZYRA Normalized: nuzyra |
Drug | Paratek Pharmaceuticals, Inc. | $34.62 | 2 | 2025 |
Source payment records
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| INGREZZA Normalized: ingrezza |
Drug | Neurocrine BioSciences, Inc. | $26.29 | 1 | 2025 |
Source payment records
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| REXULTI Normalized: rexulti |
Drug | Otsuka America Pharmaceutical, Inc. | $22.83 | 1 | 2025 |
Source payment records
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| Kerendia Normalized: kerendia |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $20.04 | 1 | 2025 |
Source payment records
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| VOQUEZNA Normalized: voquezna |
Drug | Phathom Pharmaceuticals, Inc. | $16.54 | 1 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $16.27 | 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
No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.
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.
No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.
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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 900 | 179 |
| Levothyroxine Sodium | Levothyroxine Sodium | 855 | 180 |
| Gabapentin | Gabapentin | 620 | 120 |
| Eliquis | Apixaban | 587 | 83 |
| Pantoprazole Sodium | Pantoprazole Sodium | 564 | 137 |
| Metoprolol Tartrate | Metoprolol Tartrate | 499 | 107 |
| Donepezil Hcl | Donepezil Hcl | 469 | 70 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 466 | 99 |
| Lisinopril | Lisinopril | 447 | 98 |
| Omeprazole | Omeprazole | 436 | 110 |
| Simvastatin | Simvastatin | 422 | 81 |
| Trazodone Hcl | Trazodone Hcl | 418 | 93 |
| Losartan Potassium | Losartan Potassium | 401 | 86 |
| Montelukast Sodium | Montelukast Sodium | 385 | 80 |
| Allopurinol | Allopurinol | 350 | 75 |
| Sertraline Hcl | Sertraline Hcl | 342 | 71 |
| Mirtazapine | Mirtazapine | 330 | 72 |
| Amlodipine Besylate | Amlodipine Besylate | 313 | 78 |
| Tamsulosin Hcl | Tamsulosin Hcl | 277 | 58 |
| Clonidine Hcl | Clonidine Hcl | 276 | 138 |
| Furosemide | Furosemide | 252 | 80 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 247 | 36 |
| Meloxicam | Meloxicam | 239 | 48 |
| Xarelto | Rivaroxaban | 228 | 21 |
| Alprazolam | Alprazolam | 218 | 38 |
| Escitalopram Oxalate | Escitalopram Oxalate | 215 | 57 |
| Tizanidine Hcl | Tizanidine Hcl | 207 | 49 |
| Clopidogrel | Clopidogrel Bisulfate | 198 | 44 |
| Potassium Chloride | Potassium Chloride | 195 | 43 |
| Metformin Hcl | Metformin Hcl | 194 | 45 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 183 | 40 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 177 | 41 |
| Novolin R Flexpen | Insulin Regular, Human | 168 | 34 |
| Jardiance | Empagliflozin | 166 | 24 |
| Carvedilol | Carvedilol | 154 | 41 |
| Ondansetron Hcl | Ondansetron Hcl | 148 | 53 |
| Buspirone Hcl | Buspirone Hcl | 146 | 31 |
| Pravastatin Sodium | Pravastatin Sodium | 141 | 37 |
| Metoprolol Succinate | Metoprolol Succinate | 134 | 35 |
| Fluticasone Propionate | Fluticasone Propionate | 132 | 49 |
| Memantine Hcl | Memantine Hcl | 129 | 26 |
| Duloxetine Hcl | Duloxetine Hcl | 122 | 23 |
| Tramadol Hcl | Tramadol Hcl | 121 | 57 |
| Hydralazine Hcl | Hydralazine Hcl | 118 | 39 |
| Glimepiride | Glimepiride | 116 | 24 |
| Prednisone | Prednisone | 116 | 82 |
| Divalproex Sodium | Divalproex Sodium | 113 | 23 |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 110 | 20 |
| Clonazepam | Clonazepam | 108 | 23 |
| Novolin R | Insulin Regular, Human | 108 | 36 |
| Levetiracetam | Levetiracetam | 104 | 20 |
| Bumetanide | Bumetanide | 100 | 31 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 94 | 50 |
| Alendronate Sodium | Alendronate Sodium | 94 | 19 |
| Doxycycline Hyclate | Doxycycline Hyclate | 93 | 76 |
| Azithromycin | Azithromycin | 84 | 64 |
| Hydrochlorothiazide | Hydrochlorothiazide | 82 | 31 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 81 | 39 |
| Baclofen | Baclofen | 80 | 13 |
| Citalopram Hbr | Citalopram Hydrobromide | 80 | 16 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 76 | 15 |
| Lorazepam | Lorazepam | 75 | 19 |
| Zolpidem Tartrate | Zolpidem Tartrate | 71 | 28 |
| Diclofenac Sodium | Diclofenac Sodium | 69 | 17 |
| Nifedipine Er | Nifedipine | 68 | 17 |
| Fenofibrate | Fenofibrate | 67 | 11 |
| Lactulose | Lactulose | 67 | 12 |
| Atenolol | Atenolol | 66 | 15 |
| Farxiga | Dapagliflozin Propanediol | 66 | suppressed |
| Ondansetron Odt | Ondansetron | 65 | 19 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 65 | 15 |
| Permethrin | Permethrin | 65 | 35 |
| Celecoxib | Celecoxib | 62 | 21 |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 61 | suppressed |
| Insulin Glargine-Yfgn | Insulin Glargine-Yfgn | 61 | 18 |
| Spironolactone | Spironolactone | 60 | 22 |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 56 | 22 |
| Pregabalin | Pregabalin | 55 | suppressed |
| Famotidine | Famotidine | 54 | 21 |
| Fluoxetine Hcl | Fluoxetine Hcl | 53 | 11 |
| Finasteride | Finasteride | 52 | 11 |
| Diazepam | Diazepam | 51 | 14 |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 50 | 14 |
| Oxycodone Hcl | Oxycodone Hcl | 48 | 33 |
| Oxybutynin Chloride | Oxybutynin Chloride | 47 | suppressed |
| Primidone | Primidone | 46 | suppressed |
| Benazepril Hcl | Benazepril Hcl | 45 | suppressed |
| Ipratropium-Albuterol | Ipratropium/Albuterol Sulfate | 45 | 29 |
| Vitamin D2 | Ergocalciferol (Vitamin D2) | 45 | 11 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 44 | 11 |
| Nystatin | Nystatin | 44 | 20 |
| Levocetirizine Dihydrochloride | Levocetirizine Dihydrochloride | 43 | 11 |
| Novolog Mix 70-30 Flexpen | Insulin Aspart Prot/Insuln Asp | 43 | suppressed |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 42 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 42 | suppressed |
| Januvia | Sitagliptin Phosphate | 41 | suppressed |
| Sucralfate | Sucralfate | 40 | 12 |
| Diphenoxylate-Atropine | Diphenoxylate Hcl/Atropine | 39 | 16 |
| Insulin Lispro Kwikpen U-100 | Insulin Lispro | 39 | suppressed |
| Levemir Flexpen | Insulin Detemir | 39 | suppressed |
| Valsartan | Valsartan | 39 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 38 | 13 |
| Olanzapine | Olanzapine | 38 | suppressed |
| Cephalexin | Cephalexin | 37 | 31 |
| Ropinirole Hcl | Ropinirole Hcl | 37 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 36 | 13 |
| Folic Acid | Folic Acid | 36 | suppressed |
| Myrbetriq | Mirabegron | 36 | suppressed |
| Risperidone | Risperidone | 36 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 35 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 35 | suppressed |
| Trulicity | Dulaglutide | 35 | suppressed |
| Midodrine Hcl | Midodrine Hcl | 33 | 18 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 33 | 19 |
| Latanoprost | Latanoprost | 32 | 13 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 32 | 11 |
| Lubiprostone | Lubiprostone | 30 | suppressed |
| Butalbital-Acetaminophen-Caffe | Butalb/Acetaminophen/Caffeine | 29 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 29 | 23 |
| Lidocaine Hcl | Lidocaine Hcl | 29 | 20 |
| Methimazole | Methimazole | 29 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 29 | 19 |
| Cefdinir | Cefdinir | 28 | 23 |
| Ceftriaxone | Ceftriaxone Sodium | 28 | 12 |
| Fluconazole | Fluconazole | 28 | 17 |
| Glipizide | Glipizide | 28 | suppressed |
| Methocarbamol | Methocarbamol | 28 | 13 |
| Naproxen | Naproxen | 28 | 14 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 27 | 11 |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 27 | suppressed |
| Methylprednisolone | Methylprednisolone | 27 | 20 |
| Nabumetone | Nabumetone | 27 | suppressed |
| Synjardy | Empagliflozin/Metformin Hcl | 27 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 27 | suppressed |
| Entresto | Sacubitril/Valsartan | 26 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 26 | suppressed |
| Gemtesa | Vibegron | 25 | suppressed |
| Nitroglycerin Patch | Nitroglycerin | 25 | suppressed |
| Terbinafine Hcl | Terbinafine Hcl | 25 | suppressed |
| Bupropion Xl | Bupropion Hcl | 24 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 24 | suppressed |
| Fluvoxamine Maleate | Fluvoxamine Maleate | 24 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 24 | suppressed |
| Dexlansoprazole Dr | Dexlansoprazole | 23 | suppressed |
| Ibuprofen | Ibuprofen | 23 | suppressed |
| Labetalol Hcl | Labetalol Hcl | 23 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 23 | suppressed |
| Lovastatin | Lovastatin | 23 | suppressed |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 22 | suppressed |
| Semglee (Yfgn) | Insulin Glargine-Yfgn | 22 | suppressed |
| Comfort Ez Pen Needle | Pen Needle, Diabetic | 21 | suppressed |
| Prazosin Hcl | Prazosin Hcl | 21 | suppressed |
| Xifaxan | Rifaximin | 20 | suppressed |
| Aripiprazole | Aripiprazole | 19 | suppressed |
| Cholestyramine | Cholestyramine (With Sugar) | 18 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 18 | suppressed |
| Insulin Lispro Protamine Mix | Insulin Lispro Protamin/Lispro | 18 | suppressed |
| Metolazone | Metolazone | 18 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 18 | suppressed |
| Phenytoin Sodium Extended | Phenytoin Sodium Extended | 18 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 18 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 17 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 17 | suppressed |
| Fenofibrate | Fenofibrate,micronized | 17 | suppressed |
| Lansoprazole | Lansoprazole | 17 | suppressed |
| Semglee (Yfgn) Pen | Insulin Glargine-Yfgn | 17 | suppressed |
| Topiramate | Topiramate | 17 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 16 | 14 |
| Bupropion Hcl Sr | Bupropion Hcl | 16 | suppressed |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 16 | suppressed |
| Eszopiclone | Eszopiclone | 16 | suppressed |
| Humalog Mix 75-25 Kwikpen | Insulin Lispro Protamin/Lispro | 16 | suppressed |
| Medroxyprogesterone Acetate | Medroxyprogesterone Acetate | 16 | suppressed |
| Movantik | Naloxegol Oxalate | 16 | suppressed |
| Sodium Chloride | 0.9 % Sodium Chloride | 16 | suppressed |
| Tresiba Flextouch U-100 | Insulin Degludec | 16 | suppressed |
| Atropine Sulfate | Atropine Sulfate | 15 | suppressed |
| Ezetimibe | Ezetimibe | 15 | suppressed |
| Synthroid | Levothyroxine Sodium | 15 | suppressed |
| Amoxicillin | Amoxicillin | 14 | 12 |
| Brimonidine Tartrate | Brimonidine Tartrate | 14 | suppressed |
| Ertapenem | Ertapenem Sodium | 14 | suppressed |
| Prednisolone Acetate | Prednisolone Acetate | 14 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 14 | suppressed |
| Anastrozole | Anastrozole | 13 | suppressed |
| Clozapine | Clozapine | 13 | suppressed |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 13 | suppressed |
| Ezetimibe-Simvastatin | Ezetimibe/Simvastatin | 13 | suppressed |
| Insulin Aspart Flexpen | Insulin Aspart | 13 | suppressed |
| Linezolid | Linezolid | 13 | suppressed |
| Mesalamine Dr | Mesalamine | 13 | suppressed |
| Methenamine Hippurate | Methenamine Hippurate | 13 | suppressed |
| Nitroglycerin | Nitroglycerin | 13 | 11 |
| Solifenacin Succinate | Solifenacin Succinate | 13 | suppressed |
| Testosterone Cypionate | Testosterone Cypionate | 13 | suppressed |
| Amantadine | Amantadine Hcl | 12 | suppressed |
| Arexvy | Rsvpref3 Antigen/As01e/Pf | 12 | 11 |
| Clonidine | Clonidine | 12 | suppressed |
| Cyproheptadine Hcl | Cyproheptadine Hcl | 12 | suppressed |
| Entecavir | Entecavir | 12 | suppressed |
| Glyburide | Glyburide | 12 | suppressed |
| Invokana | Canagliflozin | 12 | suppressed |
| Metoclopramide Hcl | Metoclopramide Hcl | 12 | suppressed |
| Nitrofurantoin | Nitrofurantoin Macrocrystal | 12 | suppressed |
| Novolin 70-30 Flexpen | Insulin Nph Hum/Reg Insulin Hm | 12 | suppressed |
| Vancomycin Hcl | Vancomycin Hcl | 12 | suppressed |
| Clotrimazole-Betamethasone | Clotrimazole/Betamethasone Dip | 11 | suppressed |
| Colestipol Hcl | Colestipol Hcl | 11 | suppressed |
| Dabigatran Etexilate | Dabigatran Etexilate Mesylate | 11 | suppressed |
| Dapagliflozin | Dapagliflozin Propanediol | 11 | suppressed |
| Febuxostat | Febuxostat | 11 | suppressed |
| Ivermectin | Ivermectin | 11 | suppressed |
| Levofloxacin | Levofloxacin | 11 | suppressed |
| Lidocaine Hcl Viscous | Lidocaine Hcl | 11 | suppressed |
| Linzess | Linaclotide | 11 | suppressed |
| Rivastigmine | Rivastigmine Tartrate | 11 | suppressed |
| Trimethoprim | Trimethoprim | 11 | 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 | $244.06 · 10 records | UCB, Inc. | Briviact, INGREZZA, Kerendia, NUZYRA, Ozempic, REXULTI, Rystiggo, VOQUEZNA | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- 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