Payment overview · 2025
General Payments
$45,689.29
35 reported records · 7 companies
Healthcare provider profile · identity verified
Richard Todd Frederick, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · SAN FRANCISCO, CA · NPI 1720009160
Verified facts
What the public records show
CMS Open Payments records show Richard Todd Frederick, M.D. received $45,689.29 in general payments during 2025 across 35 reported records.
Madrigal Pharmaceuticals accounted for 91.5% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 6 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Rezdiffra, Xifaxan.
Gilead Sciences, 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 Epclusa as an associated drug or biological on 4711 records involving 2021 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Epclusa by this doctor in 2024.
Gilead Sciences, 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 Vemlidy as an associated drug or biological on 782 records involving 554 distinct recipient NPIs. Public Medicare Part D data also shows 151 claims for Vemlidy by this doctor in 2024.
Madrigal Pharmaceuticals reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported REZDIFFRA as an associated drug or biological on 75650 records involving 19195 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Rezdiffra by this doctor in 2024.
Salix Pharmaceuticals, a division of Bausch Health US, 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 XIFAXAN as an associated drug or biological on 101901 records involving 33018 distinct recipient NPIs. Public Medicare Part D data also shows 122 claims for Xifaxan 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 |
|---|---|---|---|---|---|
| Madrigal Pharmaceuticals | Unresolved — no canonical attribution shown | $41,812.72 | 91.5% | 27 | 2025 |
| Mallinckrodt Hospital Products Inc. | Unresolved — no canonical attribution shown | $2,994.93 | 6.5% | 3 | 2025 |
| CIPLA USA INC. | Unresolved — no canonical attribution shown | $450.00 | 1.0% | 1 | 2025 |
| Gilead Sciences, Inc. | Unresolved — no canonical attribution shown | $139.74 | 0.3% | 1 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $118.84 | 0.3% | 1 | 2025 |
| Cook Medical LLC | Unresolved — no canonical attribution shown | $111.52 | 0.2% | 1 | 2025 |
| Ipsen Biopharmaceuticals, Inc | Unresolved — no canonical attribution shown | $61.54 | 0.1% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $39,306.75 | 10 |
| Consulting Fee | $3,240.00 | 2 |
| Travel and Lodging | $1,620.50 | 8 |
| Food and Beverage | $1,522.04 | 15 |
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 |
|---|---|---|---|---|---|
| REZDIFFRA Normalized: rezdiffra |
Drug | Madrigal Pharmaceuticals | $41,812.72 | 27 | 2025 |
Source payment records
|
|||||
| TERLIVAZ Normalized: terlivaz |
Drug | Mallinckrodt Hospital Products Inc. | $2,994.93 | 3 | 2025 |
Source payment records
|
|||||
| Livdelzi Normalized: livdelzi |
Drug | Gilead Sciences, Inc. | $139.74 | 1 | 2025 |
Source payment records
|
|||||
| XIFAXAN Normalized: xifaxan |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $118.84 | 1 | 2025 |
Source payment records
|
|||||
| ECHOTIP INSIGHT Normalized: echotip insight |
Device | Cook Medical LLC | $111.52 | 1 | 2025 |
Source payment records
|
|||||
| IQIRVO Normalized: iqirvo |
Drug | Ipsen Biopharmaceuticals, Inc | $61.54 | 1 | 2025 |
Source payment records
|
|||||
* 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 |
|---|---|---|---|---|---|---|
| REZDIFFRA rezdiffra |
2025 | Rezdiffra | 2024 | 24 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| XIFAXAN xifaxan |
2025 | Xifaxan | 2024 | 122 | 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 |
|---|---|---|---|---|---|---|
| Gilead Sciences, Inc. Exact reporting entity; no affiliate inference |
2025 | Epclusa open payments reported associated product |
CMS Open Payments — General Payments 4711 supporting records · 2021 recipient NPIs · example record 1234350832 |
Epclusa · 2024 Exact normalized brand match · 1 Part D row |
18 | suppressed by CMS |
| Gilead Sciences, Inc. Exact reporting entity; no affiliate inference |
2025 | Vemlidy open payments reported associated product |
CMS Open Payments — General Payments 782 supporting records · 554 recipient NPIs · example record 1234350906 |
Vemlidy · 2024 Exact normalized brand match · 1 Part D row |
151 | 21 |
| Madrigal Pharmaceuticals Exact reporting entity; no affiliate inference |
2025 | REZDIFFRA open payments reported associated product |
CMS Open Payments — General Payments 75650 supporting records · 19195 recipient NPIs · example record 1248227746 |
Rezdiffra · 2024 Exact normalized brand match · 1 Part D row |
24 | suppressed by CMS |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC Exact reporting entity; no affiliate inference |
2025 | XIFAXAN open payments reported associated product |
CMS Open Payments — General Payments 101901 supporting records · 33018 recipient NPIs · example record 1231775337 |
Xifaxan · 2024 Exact normalized brand match · 1 Part D row |
122 | 18 |
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 |
|---|---|---|---|
| Tacrolimus | Tacrolimus | 248 | 49 |
| Ursodiol | Ursodiol | 241 | 54 |
| Vemlidy | Tenofovir Alafenamide | 151 | 21 |
| Xifaxan | Rifaximin | 122 | 18 |
| Entecavir | Entecavir | 120 | 29 |
| Lactulose | Lactulose | 72 | 20 |
| Furosemide | Furosemide | 69 | 25 |
| Pantoprazole Sodium | Pantoprazole Sodium | 65 | 23 |
| Prednisone | Prednisone | 65 | 19 |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 62 | 20 |
| Spironolactone | Spironolactone | 54 | 22 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 52 | 12 |
| Eplerenone | Eplerenone | 27 | suppressed |
| Mycophenolic Acid | Mycophenolate Sodium | 27 | suppressed |
| Rezdiffra | Resmetirom | 24 | suppressed |
| Omeprazole | Omeprazole | 22 | 11 |
| Valganciclovir Hcl | Valganciclovir Hcl | 22 | suppressed |
| Budesonide Ec | Budesonide | 21 | suppressed |
| Carvedilol | Carvedilol | 20 | suppressed |
| Fluconazole | Fluconazole | 20 | suppressed |
| Prograf | Tacrolimus | 19 | suppressed |
| Epclusa | Sofosbuvir/Velpatasvir | 18 | suppressed |
| Eliquis | Apixaban | 17 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 17 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 16 | suppressed |
| Budesonide Dr | Budesonide | 15 | suppressed |
| Constulose | Lactulose | 15 | suppressed |
| Amlodipine Besylate | Amlodipine Besylate | 13 | suppressed |
| Azathioprine | Azathioprine | 13 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 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 | $45,689.29 · 35 records | Madrigal Pharmaceuticals | ECHOTIP INSIGHT, IQIRVO, Livdelzi, REZDIFFRA, TERLIVAZ, XIFAXAN | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Rezdiffra play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Gilead Sciences, 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