Payment overview · 2025
General Payments
$1,344.46
60 reported records · 15 companies
Healthcare provider profile · identity verified
David Birken, MD
Allopathic & Osteopathic Physicians|Internal Medicine · SANTA BARBARA, CA · NPI 1700801321
Verified facts
What the public records show
CMS Open Payments records show David Birken, MD received $1,344.46 in general payments during 2025 across 60 reported records.
AstraZeneca Pharmaceuticals LP accounted for 20.4% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 26 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Ozempic, Paxlovid.
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 45 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 27 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 13 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 70 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 50 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Paxlovid 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 | $274.67 | 20.4% | 12 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $184.03 | 13.7% | 8 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $146.55 | 10.9% | 8 | 2025 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $139.35 | 10.4% | 5 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $125.24 | 9.3% | 5 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $116.43 | 8.7% | 5 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $110.58 | 8.2% | 5 | 2025 |
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $53.89 | 4.0% | 2 | 2025 |
| Phathom Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $47.60 | 3.5% | 3 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $36.13 | 2.7% | 2 | 2025 |
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $28.88 | 2.1% | 1 | 2025 |
| Aimmune Therapeutics, Inc. | Unresolved — no canonical attribution shown | $26.42 | 2.0% | 1 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $21.33 | 1.6% | 1 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $18.82 | 1.4% | 1 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $14.54 | 1.1% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,344.46 | 60 |
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 |
|---|---|---|---|---|---|
| ABRYSVO Normalized: abrysvo |
Biological | PFIZER INC. | $148.90 | 6 | 2025 |
Source payment records
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| COMIRNATY Normalized: comirnaty |
Biological | PFIZER INC. | $148.90 | 6 | 2025 |
Source payment records
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| PREVNAR 20 Normalized: prevnar 20 |
Biological | PFIZER INC. | $148.90 | 6 | 2025 |
Source payment records
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| JARDIANCE Normalized: jardiance |
Drug | Boehringer Ingelheim Pharmaceuticals, Inc. | $139.35 | 5 | 2025 |
Source payment records
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| EVENITY Normalized: evenity |
Biological | Amgen Inc. | $125.24 | 5 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $114.50 | 5 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $110.58 | 5 | 2025 |
Source payment records
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| ZEPBOUND Normalized: zepbound |
Drug | Lilly USA, LLC | $110.58 | 5 | 2025 |
Source payment records
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| FARXIGA Normalized: farxiga |
Drug | AstraZeneca Pharmaceuticals LP | $85.05 | 3 | 2025 |
Source payment records
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| VRAYLAR Normalized: vraylar |
Drug | ABBVIE INC. | $83.43 | 5 | 2025 |
Source payment records
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| BREZTRI Normalized: breztri |
Drug | AstraZeneca Pharmaceuticals LP | $75.12 | 4 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $66.50 | 3 | 2025 |
Source payment records
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $63.12 | 3 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $49.93 | 2 | 2025 |
Source payment records
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| PROLIA Normalized: prolia |
Biological | Amgen Inc. | $49.04 | 2 | 2025 |
Source payment records
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| VOQUEZNA Normalized: voquezna |
Drug | Phathom Pharmaceuticals, Inc. | $47.60 | 3 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $40.72 | 2 | 2025 |
Source payment records
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| Kerendia Normalized: kerendia |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $36.13 | 2 | 2025 |
Source payment records
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| PAXLOVID Normalized: paxlovid |
Drug | PFIZER INC. | $35.13 | 2 | 2025 |
Source payment records
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| WATCHMAN Access System Normalized: watchman access system |
Device | Boston Scientific Corporation | $28.88 | 1 | 2025 |
Source payment records
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| ZENPEP Normalized: zenpep |
Drug | Aimmune Therapeutics, Inc. | $26.42 | 1 | 2025 |
Source payment records
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| Cologuard Collection Kit Normalized: cologuard collection kit |
Device | Exact Sciences Corporation | $23.50 | 1 | 2025 |
Source payment records
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| FREESTYLE LIBRE 3 Normalized: freestyle libre 3 |
Device | Abbott Laboratories | $21.33 | 1 | 2025 |
Source payment records
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| XIFAXAN Normalized: xifaxan |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $18.82 | 1 | 2025 |
Source payment records
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| CAPVAXIVE Normalized: capvaxive |
Biological | Merck Sharp & Dohme LLC | $14.54 | 1 | 2025 |
Source payment records
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| GARDASIL 9 Normalized: gardasil 9 |
Biological | Merck Sharp & Dohme LLC | $14.54 | 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 | 27 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Ozempic ozempic |
2025 | Ozempic | 2024 | 70 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| PAXLOVID paxlovid |
2025 | Paxlovid | 2024 | 31 | 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 |
45 | 11 |
| 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 |
27 | suppressed by CMS |
| 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 |
13 | 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 |
70 | 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 |
50 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | PAXLOVID open payments reported associated product |
CMS Open Payments — General Payments 24465 supporting records · 15715 recipient NPIs · example record 1228794432 |
Paxlovid · 2024 Exact normalized brand match · 1 Part D row |
31 | 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
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 341 | 100 |
| Losartan Potassium | Losartan Potassium | 297 | 89 |
| Amlodipine Besylate | Amlodipine Besylate | 217 | 63 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 133 | 31 |
| Levothyroxine Sodium | Levothyroxine Sodium | 130 | 33 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 118 | 29 |
| Gabapentin | Gabapentin | 106 | 24 |
| Escitalopram Oxalate | Escitalopram Oxalate | 103 | 29 |
| Hydrochlorothiazide | Hydrochlorothiazide | 91 | 25 |
| Omeprazole | Omeprazole | 73 | 19 |
| Metoprolol Succinate | Metoprolol Succinate | 70 | 22 |
| Ozempic | Semaglutide | 70 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 64 | 22 |
| Metformin Hcl | Metformin Hcl | 62 | 17 |
| Benazepril Hcl | Benazepril Hcl | 60 | 14 |
| Furosemide | Furosemide | 59 | 17 |
| Eliquis | Apixaban | 50 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 49 | 12 |
| Tamsulosin Hcl | Tamsulosin Hcl | 49 | 16 |
| Carvedilol | Carvedilol | 47 | 11 |
| Pantoprazole Sodium | Pantoprazole Sodium | 46 | 13 |
| Allopurinol | Allopurinol | 45 | 13 |
| Synthroid | Levothyroxine Sodium | 45 | 11 |
| Simvastatin | Simvastatin | 43 | 14 |
| Celecoxib | Celecoxib | 34 | 13 |
| Valacyclovir | Valacyclovir Hcl | 32 | 15 |
| Paxlovid | Nirmatrelvir/Ritonavir | 31 | 30 |
| Valsartan | Valsartan | 30 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 28 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 28 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 27 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 26 | suppressed |
| Lisinopril | Lisinopril | 25 | 11 |
| Chlorthalidone | Chlorthalidone | 23 | suppressed |
| Irbesartan | Irbesartan | 19 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 18 | suppressed |
| Potassium Chloride | Potassium Chloride | 18 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 17 | suppressed |
| Bupropion Xl | Bupropion Hcl | 16 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 16 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 16 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 15 | suppressed |
| Finasteride | Finasteride | 15 | suppressed |
| Pregabalin | Pregabalin | 15 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 14 | 13 |
| Famotidine | Famotidine | 14 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 14 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 14 | 12 |
| Amitriptyline Hcl | Amitriptyline Hcl | 13 | suppressed |
| Azithromycin | Azithromycin | 13 | 13 |
| Cephalexin | Cephalexin | 13 | suppressed |
| Enalapril Maleate | Enalapril Maleate | 13 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 13 | suppressed |
| Trulicity | Dulaglutide | 13 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 12 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 12 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 12 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 12 | suppressed |
| Incruse Ellipta | Umeclidinium Bromide | 11 | suppressed |
| Mirtazapine | Mirtazapine | 11 | suppressed |
| Ramipril | Ramipril | 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 | $1,344.46 · 60 records | AstraZeneca Pharmaceuticals LP | ABRYSVO, AIRSUPRA, BREZTRI, CAPVAXIVE, COMIRNATY, Cologuard Collection Kit, EVENITY, FARXIGA, FREESTYLE LIBRE 3, GARDASIL 9, JARDIANCE, Kerendia, MOUNJARO, Ozempic, PAXLOVID, PREVNAR 20, PROLIA, QULIPTA, UBRELVY, VOQUEZNA, VRAYLAR, WATCHMAN Access System, Wegovy, XIFAXAN, ZENPEP, ZEPBOUND | 6 | — |
| 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