Payment overview · 2025
General Payments
$1,583.23
24 reported records · 12 companies
Healthcare provider profile · identity verified
Dat Tan Huynh, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · SAN JOSE, CA · NPI 1033298963
Verified facts
What the public records show
CMS Open Payments records show Dat Tan Huynh, M.D. received $1,583.23 in general payments during 2025 across 24 reported records.
AstraZeneca Pharmaceuticals LP accounted for 23.6% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 16 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Creon, Farxiga, Jardiance, Linzess, Ozempic, Zenpep.
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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Creon by this doctor in 2024.
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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 91 claims for Linzess by this doctor in 2024.
Aimmune Therapeutics, 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 ZENPEP as an associated drug or biological on 32144 records involving 12432 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Zenpep 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 BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Brilinta 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 70 claims for Farxiga 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 357 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 76 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 19 claims for Ozempic 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 | $373.49 | 23.6% | 3 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $249.95 | 15.8% | 2 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $209.27 | 13.2% | 4 | 2025 |
| Aimmune Therapeutics, Inc. | Unresolved — no canonical attribution shown | $152.10 | 9.6% | 2 | 2025 |
| Gilead Sciences, Inc. | Unresolved — no canonical attribution shown | $150.00 | 9.5% | 1 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $136.45 | 8.6% | 5 | 2025 |
| SANOFI-AVENTIS U.S. LLC | Unresolved — no canonical attribution shown | $124.81 | 7.9% | 1 | 2025 |
| Madrigal Pharmaceuticals | Unresolved — no canonical attribution shown | $61.48 | 3.9% | 1 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $56.75 | 3.6% | 2 | 2025 |
| Radius Health, Inc. | Unresolved — no canonical attribution shown | $29.10 | 1.8% | 1 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $23.31 | 1.5% | 1 | 2025 |
| Alkermes, Inc. | Unresolved — no canonical attribution shown | $16.52 | 1.0% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,583.23 | 24 |
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 |
|---|---|---|---|---|---|
| BREZTRI Normalized: breztri |
Drug | AstraZeneca Pharmaceuticals LP | $249.98 | 2 | 2025 |
Source payment records
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| ZENPEP Normalized: zenpep |
Drug | Aimmune Therapeutics, Inc. | $152.10 | 2 | 2025 |
Source payment records
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| Kerendia Normalized: kerendia |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $136.45 | 5 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $124.98 | 1 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $124.97 | 1 | 2025 |
Source payment records
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| TZIELD Normalized: tzield |
Biological | SANOFI-AVENTIS U.S. LLC | $124.81 | 1 | 2025 |
Source payment records
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| FARXIGA Normalized: farxiga |
Drug | AstraZeneca Pharmaceuticals LP | $123.51 | 1 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $121.84 | 1 | 2025 |
Source payment records
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| JARDIANCE Normalized: jardiance |
Drug | Lilly USA, LLC | $87.43 | 3 | 2025 |
Source payment records
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| REZDIFFRA Normalized: rezdiffra |
Drug | Madrigal Pharmaceuticals | $61.48 | 1 | 2025 |
Source payment records
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| CREON Normalized: creon |
Drug | ABBVIE INC. | $56.75 | 2 | 2025 |
Source payment records
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| LINZESS Normalized: linzess |
Drug | ABBVIE INC. | $56.75 | 2 | 2025 |
Source payment records
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| Tymlos Normalized: tymlos |
Drug | Radius Health, Inc. | $29.10 | 1 | 2025 |
Source payment records
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| XIFAXAN Normalized: xifaxan |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $23.31 | 1 | 2025 |
Source payment records
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| ARISTADA Normalized: aristada |
Drug | Alkermes, Inc. | $16.52 | 1 | 2025 |
Source payment records
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| LYBALVI Normalized: lybalvi |
Drug | Alkermes, Inc. | $16.52 | 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 |
|---|---|---|---|---|---|---|
| CREON creon |
2025 | Creon | 2024 | 35 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| FARXIGA farxiga |
2025 | Farxiga | 2024 | 70 | exact normalized | Medicare Part D |
| JARDIANCE jardiance |
2025 | Jardiance | 2024 | 357 | exact normalized | Medicare Part D |
| LINZESS linzess |
2025 | Linzess | 2024 | 91 | exact normalized | Medicare Part D |
| Ozempic ozempic |
2025 | Ozempic | 2024 | 19 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| ZENPEP zenpep |
2025 | Zenpep | 2024 | 26 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 | CREON open payments reported associated product |
CMS Open Payments — General Payments 91561 supporting records · 20616 recipient NPIs · example record 1201352608 |
Creon · 2024 Exact normalized brand match · 1 Part D row |
35 | suppressed by CMS |
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | LINZESS open payments reported associated product |
CMS Open Payments — General Payments 87954 supporting records · 21815 recipient NPIs · example record 1201352608 |
Linzess · 2024 Exact normalized brand match · 1 Part D row |
91 | 29 |
| Aimmune Therapeutics, Inc. Exact reporting entity; no affiliate inference |
2025 | ZENPEP open payments reported associated product |
CMS Open Payments — General Payments 32144 supporting records · 12432 recipient NPIs · example record 1249641927 |
Zenpep · 2024 Exact normalized brand match · 1 Part D row |
26 | suppressed by CMS |
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | BRILINTA open payments reported associated product |
CMS Open Payments — General Payments 993 supporting records · 512 recipient NPIs · example record 1206131430 |
Brilinta · 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 |
70 | 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 |
357 | 57 |
| 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 |
76 | 11 |
| 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 |
19 | 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 | 984 | 287 |
| Amlodipine Besylate | Amlodipine Besylate | 806 | 242 |
| Losartan Potassium | Losartan Potassium | 556 | 172 |
| Jardiance | Empagliflozin | 357 | 57 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 355 | 141 |
| Famotidine | Famotidine | 303 | 93 |
| Omeprazole | Omeprazole | 265 | 98 |
| Metformin Hcl | Metformin Hcl | 259 | 78 |
| Januvia | Sitagliptin Phosphate | 256 | 45 |
| Tradjenta | Linagliptin | 231 | 37 |
| Fluticasone Propionate | Fluticasone Propionate | 217 | 75 |
| Azelastine Hcl | Azelastine Hcl | 212 | 73 |
| Gabapentin | Gabapentin | 191 | 75 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 156 | 36 |
| Benazepril Hcl | Benazepril Hcl | 146 | 43 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 145 | 46 |
| Tamsulosin Hcl | Tamsulosin Hcl | 144 | 44 |
| Metoprolol Tartrate | Metoprolol Tartrate | 111 | 44 |
| Metoprolol Succinate | Metoprolol Succinate | 110 | 40 |
| Carvedilol | Carvedilol | 109 | 35 |
| Amoxicillin | Amoxicillin | 107 | 73 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 98 | 17 |
| Alendronate Sodium | Alendronate Sodium | 92 | 27 |
| Linzess | Linaclotide | 91 | 29 |
| Hydrochlorothiazide | Hydrochlorothiazide | 80 | 30 |
| Lisinopril | Lisinopril | 78 | 24 |
| Trulicity | Dulaglutide | 76 | 11 |
| Diclofenac Sodium | Diclofenac Sodium | 72 | 38 |
| Omega-3 Acid Ethyl Esters | Omega-3 Acid Ethyl Esters | 72 | 26 |
| Farxiga | Dapagliflozin Propanediol | 70 | 14 |
| Metformin Hcl Er | Metformin Hcl | 69 | 34 |
| Pantoprazole Sodium | Pantoprazole Sodium | 68 | 28 |
| Benzonatate | Benzonatate | 66 | 33 |
| Baclofen | Baclofen | 64 | 37 |
| Vascepa | Icosapent Ethyl | 59 | 18 |
| Azithromycin | Azithromycin | 58 | 54 |
| Levothyroxine Sodium | Levothyroxine Sodium | 54 | 16 |
| Meclizine Hcl | Meclizine Hcl | 54 | 27 |
| Sulindac | Sulindac | 54 | 32 |
| Clopidogrel | Clopidogrel Bisulfate | 53 | 16 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 53 | 18 |
| Hydrocortisone | Hydrocortisone | 51 | 21 |
| Montelukast Sodium | Montelukast Sodium | 51 | 17 |
| Repaglinide | Repaglinide | 48 | 14 |
| Ibuprofen | Ibuprofen | 45 | 28 |
| Glipizide | Glipizide | 44 | 13 |
| Loperamide | Loperamide Hcl | 42 | 39 |
| Ventolin Hfa | Albuterol Sulfate | 42 | 14 |
| Allopurinol | Allopurinol | 41 | 15 |
| Ketoconazole | Ketoconazole | 41 | 18 |
| Furosemide | Furosemide | 40 | 14 |
| Finasteride | Finasteride | 39 | 12 |
| Simvastatin | Simvastatin | 37 | suppressed |
| Glimepiride | Glimepiride | 36 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 36 | 11 |
| Creon | Lipase/Protease/Amylase | 35 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 33 | 12 |
| Icosapent Ethyl | Icosapent Ethyl | 30 | 15 |
| Janumet | Sitagliptin Phos/Metformin Hcl | 30 | suppressed |
| Metoclopramide Hcl | Metoclopramide Hcl | 30 | 21 |
| Sildenafil Citrate | Sildenafil Citrate | 30 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 29 | 14 |
| Hydralazine Hcl | Hydralazine Hcl | 28 | 14 |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 27 | suppressed |
| Acarbose | Acarbose | 26 | suppressed |
| Mometasone Furoate | Mometasone Furoate | 26 | 14 |
| Zenpep | Lipase/Protease/Amylase | 26 | suppressed |
| Terazosin Hcl | Terazosin Hcl | 25 | suppressed |
| Atenolol | Atenolol | 24 | suppressed |
| Celecoxib | Celecoxib | 24 | suppressed |
| Glipizide Er | Glipizide | 24 | suppressed |
| Colchicine | Colchicine | 21 | 11 |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 19 | suppressed |
| Ozempic | Semaglutide | 19 | suppressed |
| Valsartan | Valsartan | 19 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 17 | 16 |
| Lactulose | Lactulose | 17 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 17 | suppressed |
| Eliquis | Apixaban | 16 | suppressed |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 15 | suppressed |
| Brilinta | Ticagrelor | 15 | suppressed |
| Clindamycin Phosphate | Clindamycin Phosphate | 14 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 14 | suppressed |
| Fluocinonide | Fluocinonide | 14 | suppressed |
| Isosorbide Dinitrate | Isosorbide Dinitrate | 13 | suppressed |
| Restasis | Cyclosporine | 13 | suppressed |
| Alcohol Pads | Alcohol Antiseptic Pads | 12 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 12 | 11 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 12 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 11 | suppressed |
| Dutasteride | Dutasteride | 11 | suppressed |
| Erythromycin | Erythromycin Base | 11 | suppressed |
| Methimazole | Methimazole | 11 | suppressed |
| Ofloxacin | Ofloxacin | 11 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 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 | $1,583.23 · 24 records | AstraZeneca Pharmaceuticals LP | ARISTADA, BREZTRI, CREON, FARXIGA, JARDIANCE, Kerendia, LINZESS, LYBALVI, MOUNJARO, Ozempic, REZDIFFRA, TZIELD, Tymlos, Wegovy, XIFAXAN, ZENPEP | 8 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Creon 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