Payment overview · 2025
General Payments
$25.66
1 reported records · 1 companies
Healthcare provider profile · identity verified
Alan K Tam, NP
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · SAN FRANCISCO, CA · NPI 1154960334
Verified facts
What the public records show
CMS Open Payments records show Alan K Tam, NP received $25.66 in general payments during 2025 across 1 reported records.
Merck Sharp & Dohme LLC accounted for 100.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 2 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 |
|---|---|---|---|---|---|
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $25.66 | 100.0% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $25.66 | 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 |
|---|---|---|---|---|---|
| CAPVAXIVE Normalized: capvaxive |
Biological | Merck Sharp & Dohme LLC | $25.66 | 1 | 2025 |
Source payment records
|
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| GARDASIL 9 Normalized: gardasil 9 |
Biological | Merck Sharp & Dohme LLC | $25.66 | 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 | 340 | 140 |
| Amlodipine Besylate | Amlodipine Besylate | 288 | 123 |
| Metformin Hcl | Metformin Hcl | 188 | 84 |
| Losartan Potassium | Losartan Potassium | 163 | 77 |
| Levothyroxine Sodium | Levothyroxine Sodium | 143 | 55 |
| Gabapentin | Gabapentin | 142 | 54 |
| Lisinopril | Lisinopril | 126 | 52 |
| Omeprazole | Omeprazole | 123 | 58 |
| Metoprolol Succinate | Metoprolol Succinate | 119 | 50 |
| Furosemide | Furosemide | 88 | 39 |
| Mirtazapine | Mirtazapine | 88 | 32 |
| Jardiance | Empagliflozin | 79 | 37 |
| Tamsulosin Hcl | Tamsulosin Hcl | 79 | 40 |
| Alendronate Sodium | Alendronate Sodium | 77 | 28 |
| Diclofenac Sodium | Diclofenac Sodium | 76 | 42 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 74 | 40 |
| Simvastatin | Simvastatin | 74 | 26 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 72 | 37 |
| Eliquis | Apixaban | 66 | 33 |
| Pantoprazole Sodium | Pantoprazole Sodium | 64 | 28 |
| Hydrochlorothiazide | Hydrochlorothiazide | 62 | 29 |
| Trazodone Hcl | Trazodone Hcl | 62 | 19 |
| Glipizide | Glipizide | 57 | 27 |
| Fluticasone Propionate | Fluticasone Propionate | 53 | 30 |
| Famotidine | Famotidine | 51 | 32 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 50 | 26 |
| Myrbetriq | Mirabegron | 46 | 11 |
| Januvia | Sitagliptin Phosphate | 45 | 19 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 45 | 37 |
| Atenolol | Atenolol | 44 | 16 |
| Metoprolol Tartrate | Metoprolol Tartrate | 40 | 12 |
| Tramadol Hcl | Tramadol Hcl | 40 | 16 |
| Finasteride | Finasteride | 39 | 16 |
| Lovastatin | Lovastatin | 39 | 16 |
| Meclizine Hcl | Meclizine Hcl | 38 | 21 |
| Hydralazine Hcl | Hydralazine Hcl | 37 | 16 |
| Carvedilol | Carvedilol | 34 | 12 |
| Clopidogrel | Clopidogrel Bisulfate | 34 | 18 |
| Ozempic | Semaglutide | 33 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 32 | 14 |
| Potassium Chloride | Potassium Chloride | 32 | 14 |
| Allopurinol | Allopurinol | 31 | 11 |
| Spironolactone | Spironolactone | 30 | 12 |
| Ketoconazole | Ketoconazole | 28 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 27 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 26 | 14 |
| Nystatin | Nystatin | 25 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 24 | suppressed |
| Ibuprofen | Ibuprofen | 23 | 11 |
| Benazepril Hcl | Benazepril Hcl | 22 | suppressed |
| Hydrocortisone | Hydrocortisone | 22 | 11 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 21 | suppressed |
| Lidocaine | Lidocaine | 21 | 13 |
| Sertraline Hcl | Sertraline Hcl | 21 | 13 |
| Trulicity | Dulaglutide | 21 | suppressed |
| Valsartan | Valsartan | 19 | suppressed |
| Humulin N | Insulin Nph Human Isophane | 18 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 18 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 18 | 15 |
| Baclofen | Baclofen | 17 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 17 | suppressed |
| Latanoprost | Latanoprost | 17 | suppressed |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 16 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 16 | suppressed |
| Lorazepam | Lorazepam | 16 | suppressed |
| Mupirocin | Mupirocin | 16 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 16 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 15 | suppressed |
| Naproxen | Naproxen | 15 | suppressed |
| Nifedipine Er | Nifedipine | 14 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 14 | suppressed |
| Pregabalin | Pregabalin | 14 | suppressed |
| Levetiracetam | Levetiracetam | 13 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 12 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 12 | suppressed |
| Colchicine | Colchicine | 12 | suppressed |
| Irbesartan | Irbesartan | 12 | suppressed |
| Labetalol Hcl | Labetalol Hcl | 12 | suppressed |
| Methimazole | Methimazole | 12 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 12 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 12 | suppressed |
| Ciclopirox | Ciclopirox | 11 | suppressed |
| Insulin Lispro | Insulin Lispro | 11 | suppressed |
| Insulin Syringe | Syringe-Needle,insulin,0.5 Ml | 11 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 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 | $25.66 · 1 records | Merck Sharp & Dohme LLC | CAPVAXIVE, GARDASIL 9 | — | — |
| 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