Payment overview · 2025
General Payments
$430.40
17 reported records · 7 companies
Healthcare provider profile · identity verified
Sylvia Tan, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · GUYMON, OK · NPI 1700809720
Verified facts
What the public records show
CMS Open Payments records show Sylvia Tan, M.D. received $430.40 in general payments during 2025 across 17 reported records.
AstraZeneca Pharmaceuticals LP accounted for 55.4% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 12 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga.
ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Synthroid by this doctor in 2024.
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 53 claims for Farxiga 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 15 claims for Eliquis 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 |
|---|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $238.54 | 55.4% | 11 | 2025 |
| SANOFI-AVENTIS U.S. LLC | Unresolved — no canonical attribution shown | $99.95 | 23.2% | 1 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $23.24 | 5.4% | 1 | 2025 |
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $19.50 | 4.5% | 1 | 2025 |
| Viatris Specialty LLC | Unresolved — no canonical attribution shown | $17.41 | 4.0% | 1 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $15.95 | 3.7% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $15.81 | 3.7% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $330.45 | 16 |
| Education | $99.95 | 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 |
|---|---|---|---|---|---|
| FARXIGA Normalized: farxiga |
Drug | AstraZeneca Pharmaceuticals LP | $148.28 | 6 | 2025 |
Source payment records
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| DUPIXENT Normalized: dupixent |
Biological | SANOFI-AVENTIS U.S. LLC | $99.95 | 1 | 2025 |
Source payment records
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| FASENRA Normalized: fasenra |
Biological | AstraZeneca Pharmaceuticals LP | $82.68 | 3 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $62.89 | 3 | 2025 |
Source payment records
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| BREZTRI Normalized: breztri |
Drug | AstraZeneca Pharmaceuticals LP | $55.31 | 1 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $23.24 | 1 | 2025 |
Source payment records
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $23.24 | 1 | 2025 |
Source payment records
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| The Cologuard Plus Collection Kit Normalized: the cologuard plus collection kit |
Device | Exact Sciences Corporation | $19.50 | 1 | 2025 |
Source payment records
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| YUPELRI Normalized: yupelri |
Drug | Viatris Specialty LLC | $17.41 | 1 | 2025 |
Source payment records
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| Kerendia Normalized: kerendia |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $15.95 | 1 | 2025 |
Source payment records
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| NURTEC ODT Normalized: nurtec odt |
Drug | PFIZER INC. | $15.81 | 1 | 2025 |
Source payment records
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| ZAVZPRET Normalized: zavzpret |
Drug | PFIZER INC. | $15.81 | 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 |
|---|---|---|---|---|---|---|
| FARXIGA farxiga |
2025 | Farxiga | 2024 | 53 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 |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | SYNTHROID open payments reported associated product |
CMS Open Payments — General Payments 10655 supporting records · 4881 recipient NPIs · example record 1201352636 |
Synthroid · 2024 Exact normalized brand match · 1 Part D row |
15 | suppressed by CMS |
| 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 |
53 | 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 |
15 | 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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 239 | 68 |
| Levothyroxine Sodium | Levothyroxine Sodium | 208 | 55 |
| Tramadol Hcl | Tramadol Hcl | 164 | 42 |
| Metformin Hcl | Metformin Hcl | 153 | 36 |
| Gabapentin | Gabapentin | 143 | 28 |
| Pantoprazole Sodium | Pantoprazole Sodium | 139 | 36 |
| Amlodipine Besylate | Amlodipine Besylate | 125 | 36 |
| Losartan Potassium | Losartan Potassium | 124 | 37 |
| Montelukast Sodium | Montelukast Sodium | 103 | 28 |
| Alprazolam | Alprazolam | 98 | 18 |
| Metoprolol Succinate | Metoprolol Succinate | 93 | 27 |
| Lisinopril | Lisinopril | 90 | 28 |
| Meloxicam | Meloxicam | 86 | 28 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 74 | 24 |
| Clonazepam | Clonazepam | 73 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 71 | 14 |
| Azithromycin | Azithromycin | 68 | 50 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 63 | 20 |
| Carvedilol | Carvedilol | 58 | 15 |
| Hydrochlorothiazide | Hydrochlorothiazide | 58 | 15 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 57 | 42 |
| Cefuroxime | Cefuroxime Axetil | 56 | 41 |
| Omeprazole | Omeprazole | 56 | 13 |
| Allopurinol | Allopurinol | 54 | 12 |
| Farxiga | Dapagliflozin Propanediol | 53 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 53 | 13 |
| Glimepiride | Glimepiride | 48 | 14 |
| Zolpidem Tartrate | Zolpidem Tartrate | 44 | suppressed |
| Furosemide | Furosemide | 42 | 18 |
| Trazodone Hcl | Trazodone Hcl | 42 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 40 | suppressed |
| Atenolol | Atenolol | 39 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 36 | 14 |
| Memantine Hcl | Memantine Hcl | 36 | 11 |
| Jardiance | Empagliflozin | 35 | suppressed |
| Potassium Chloride | Potassium Chloride | 34 | 13 |
| Quetiapine Fumarate | Quetiapine Fumarate | 33 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 32 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 32 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 31 | 12 |
| Sucralfate | Sucralfate | 31 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 30 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 30 | suppressed |
| Ozempic | Semaglutide | 30 | suppressed |
| Simvastatin | Simvastatin | 30 | suppressed |
| Estradiol | Estradiol | 29 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 28 | suppressed |
| Tamsulosin Hcl | Tamsulosin Hcl | 27 | 12 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 26 | suppressed |
| Mounjaro | Tirzepatide | 26 | suppressed |
| Rybelsus | Semaglutide | 26 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 25 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 25 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 23 | suppressed |
| Tresiba Flextouch U-200 | Insulin Degludec | 22 | suppressed |
| Glipizide | Glipizide | 21 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 20 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 19 | suppressed |
| Celecoxib | Celecoxib | 19 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 19 | suppressed |
| Promethazine Hcl | Promethazine Hcl | 19 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 18 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 18 | suppressed |
| Constulose | Lactulose | 17 | suppressed |
| Spironolactone | Spironolactone | 17 | suppressed |
| Xigduo Xr | Dapaglifloz Propaned/Metformin | 16 | suppressed |
| Eliquis | Apixaban | 15 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 15 | suppressed |
| Synthroid | Levothyroxine Sodium | 15 | suppressed |
| Bupropion Xl | Bupropion Hcl | 14 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 14 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 13 | suppressed |
| Novolin R | Insulin Regular, Human | 13 | suppressed |
| Valsartan | Valsartan | 13 | suppressed |
| Amoxicillin | Amoxicillin | 12 | suppressed |
| Diazepam | Diazepam | 12 | suppressed |
| Glyxambi | Empagliflozin/Linagliptin | 12 | suppressed |
| Ibuprofen | Ibuprofen | 12 | suppressed |
| Levofloxacin | Levofloxacin | 12 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 12 | suppressed |
| Temazepam | Temazepam | 12 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 12 | suppressed |
| Novolog Flexpen | Insulin Aspart | 11 | suppressed |
| Primidone | Primidone | 11 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 11 | suppressed |
| Veo Insulin Syringe | Syringe-Needle,insulin,0.5 Ml | 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 | $430.40 · 17 records | AstraZeneca Pharmaceuticals LP | AIRSUPRA, BREZTRI, DUPIXENT, FARXIGA, FASENRA, Kerendia, NURTEC ODT, QULIPTA, The Cologuard Plus Collection Kit, UBRELVY, YUPELRI, ZAVZPRET | 3 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Farxiga play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with ABBVIE 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