Payment overview · 2025
General Payments
We did not find matching Open Payments records for this doctor in the selected program year.
Healthcare provider profile · identity verified
Micah R. Walker, M.D.
Family Practice · MADISON, MS · NPI 1326451741
Verified facts
What the public records show
We did not find matching Open Payments records for this doctor in 2025.
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.
Analysis 1 · Payment-linked products
Products named in Open Payments records
No payment-linked product analysis is available because no matching General Payment records were found for the selected year.
Public prescribing for products named in payments
There is no explicit payment-product set available for a Part D comparison.
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.
There is no payer-company set available for this comparison.
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 | 610 | 72 |
| Amlodipine Besylate | Amlodipine Besylate | 382 | 37 |
| Pantoprazole Sodium | Pantoprazole Sodium | 368 | 50 |
| Eliquis | Apixaban | 327 | 31 |
| Gabapentin | Gabapentin | 292 | 34 |
| Carvedilol | Carvedilol | 238 | 29 |
| Furosemide | Furosemide | 220 | 26 |
| Clopidogrel | Clopidogrel Bisulfate | 205 | 23 |
| Sertraline Hcl | Sertraline Hcl | 203 | 22 |
| Trazodone Hcl | Trazodone Hcl | 202 | 22 |
| Tamsulosin Hcl | Tamsulosin Hcl | 199 | 23 |
| Donepezil Hcl | Donepezil Hcl | 185 | 18 |
| Metformin Hcl | Metformin Hcl | 181 | 20 |
| Potassium Chloride | Potassium Chloride | 175 | 20 |
| Losartan Potassium | Losartan Potassium | 169 | 24 |
| Allopurinol | Allopurinol | 157 | 15 |
| Levetiracetam | Levetiracetam | 153 | 16 |
| Metoprolol Succinate | Metoprolol Succinate | 149 | 23 |
| Divalproex Sodium | Divalproex Sodium | 148 | 15 |
| Lisinopril | Lisinopril | 137 | 16 |
| Quetiapine Fumarate | Quetiapine Fumarate | 135 | 23 |
| Metoprolol Tartrate | Metoprolol Tartrate | 127 | 17 |
| Nifedipine Er | Nifedipine | 127 | 11 |
| Memantine Hcl | Memantine Hcl | 107 | 11 |
| Levothyroxine Sodium | Levothyroxine Sodium | 105 | 22 |
| Baclofen | Baclofen | 95 | suppressed |
| Famotidine | Famotidine | 86 | 14 |
| Buspirone Hcl | Buspirone Hcl | 84 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 83 | suppressed |
| Hydrochlorothiazide | Hydrochlorothiazide | 81 | suppressed |
| Novolin R | Insulin Regular, Human | 80 | 14 |
| Olanzapine | Olanzapine | 77 | 13 |
| Clonidine Hcl | Clonidine Hcl | 76 | 12 |
| Hydralazine Hcl | Hydralazine Hcl | 73 | suppressed |
| Benztropine Mesylate | Benztropine Mesylate | 69 | suppressed |
| Glipizide | Glipizide | 64 | suppressed |
| Risperidone | Risperidone | 57 | suppressed |
| Sucralfate | Sucralfate | 57 | suppressed |
| Divalproex Sodium Er | Divalproex Sodium | 53 | suppressed |
| Doxepin Hcl | Doxepin Hcl | 51 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 50 | suppressed |
| Ipratropium-Albuterol | Ipratropium/Albuterol Sulfate | 49 | 14 |
| Mirtazapine | Mirtazapine | 49 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 48 | suppressed |
| Ezetimibe | Ezetimibe | 46 | suppressed |
| Digoxin | Digoxin | 44 | suppressed |
| Aripiprazole | Aripiprazole | 43 | suppressed |
| Levemir | Insulin Detemir | 42 | suppressed |
| Xarelto | Rivaroxaban | 42 | suppressed |
| Lidocaine Hcl | Lidocaine Hcl/Pf | 41 | 28 |
| Sevelamer Carbonate | Sevelamer Carbonate | 40 | suppressed |
| Glucagon Emergency Kit | Glucagon | 39 | 23 |
| Finasteride | Finasteride | 38 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 37 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 36 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 36 | suppressed |
| Prednisone | Prednisone | 35 | suppressed |
| Colchicine | Colchicine | 34 | suppressed |
| Januvia | Sitagliptin Phosphate | 34 | suppressed |
| Spironolactone | Spironolactone | 34 | suppressed |
| Jardiance | Empagliflozin | 33 | suppressed |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 33 | suppressed |
| Latanoprost | Latanoprost | 33 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 32 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 32 | suppressed |
| Scopolamine | Scopolamine | 31 | suppressed |
| Lactulose | Lactulose | 30 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 30 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 28 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 28 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 28 | suppressed |
| Humulin R | Insulin Regular, Human | 27 | suppressed |
| Omeprazole | Omeprazole | 27 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 27 | suppressed |
| Caplyta | Lumateperone Tosylate | 26 | suppressed |
| Entresto | Sacubitril/Valsartan | 26 | suppressed |
| Midodrine Hcl | Midodrine Hcl | 25 | suppressed |
| Insulin Lispro | Insulin Lispro | 24 | suppressed |
| Megestrol Acetate | Megestrol Acetate | 24 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 24 | suppressed |
| Phenytoin | Phenytoin | 24 | suppressed |
| Sevelamer Hcl | Sevelamer Hcl | 24 | suppressed |
| Tradjenta | Linagliptin | 24 | suppressed |
| Valsartan | Valsartan | 24 | suppressed |
| Insulin Aspart Flexpen | Insulin Aspart | 23 | suppressed |
| Meloxicam | Meloxicam | 23 | suppressed |
| Ozempic | Semaglutide | 23 | suppressed |
| Ursodiol | Ursodiol | 23 | suppressed |
| Captopril | Captopril | 22 | suppressed |
| Celecoxib | Celecoxib | 22 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 22 | suppressed |
| Linzess | Linaclotide | 22 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 22 | suppressed |
| Dantrolene Sodium | Dantrolene Sodium | 21 | suppressed |
| Minoxidil | Minoxidil | 21 | suppressed |
| Eplerenone | Eplerenone | 20 | suppressed |
| Labetalol Hcl | Labetalol Hcl | 20 | suppressed |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 19 | suppressed |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 19 | suppressed |
| Glycopyrrolate | Glycopyrrolate | 19 | suppressed |
| Simvastatin | Simvastatin | 19 | suppressed |
| Tacrolimus | Tacrolimus | 19 | suppressed |
| Calcitriol | Calcitriol | 18 | suppressed |
| Cinacalcet Hcl | Cinacalcet Hcl | 18 | suppressed |
| Isosorbide Dinitrate | Isosorbide Dinitrate | 18 | suppressed |
| Methocarbamol | Methocarbamol | 18 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 18 | suppressed |
| Rifampin | Rifampin | 18 | suppressed |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 17 | suppressed |
| Naproxen | Naproxen | 17 | suppressed |
| Phenytoin Sodium Extended | Phenytoin Sodium Extended | 17 | suppressed |
| Rivastigmine | Rivastigmine | 17 | suppressed |
| Tresiba Flextouch U-100 | Insulin Degludec | 17 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 17 | suppressed |
| Ziprasidone Hcl | Ziprasidone Hcl | 17 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 16 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 16 | suppressed |
| Gentamicin Sulfate | Gentamicin Sulfate | 16 | suppressed |
| Insulin Aspart | Insulin Aspart | 16 | suppressed |
| Lansoprazole | Lansoprazole | 16 | suppressed |
| Novolog | Insulin Aspart | 16 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 16 | 11 |
| Fenofibrate | Fenofibrate Nanocrystallized | 15 | suppressed |
| Ibuprofen | Ibuprofen | 15 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 14 | suppressed |
| Arformoterol Tartrate | Arformoterol Tartrate | 14 | suppressed |
| Budesonide | Budesonide | 14 | suppressed |
| Hydrocortisone | Hydrocortisone | 14 | suppressed |
| Myrbetriq | Mirabegron | 14 | suppressed |
| Promethazine Hcl | Promethazine Hcl | 14 | suppressed |
| Chlorpromazine Hcl | Chlorpromazine Hcl | 13 | suppressed |
| Cyproheptadine Hcl | Cyproheptadine Hcl | 13 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 13 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 13 | suppressed |
| Veltassa | Patiromer Calcium Sorbitex | 13 | suppressed |
| Chlorthalidone | Chlorthalidone | 12 | suppressed |
| Dapagliflozin | Dapagliflozin Propanediol | 12 | suppressed |
| Glipizide Er | Glipizide | 12 | suppressed |
| Ketorolac Tromethamine | Ketorolac Tromethamine | 12 | suppressed |
| Methenamine Hippurate | Methenamine Hippurate | 12 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 12 | suppressed |
| Prednisolone Acetate | Prednisolone Acetate | 12 | suppressed |
| Trulicity | Dulaglutide | 12 | suppressed |
| Xifaxan | Rifaximin | 12 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 11 | suppressed |
| Brilinta | Ticagrelor | 11 | suppressed |
| Cefdinir | Cefdinir | 11 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 11 | suppressed |
| Levofloxacin | Levofloxacin | 11 | suppressed |
| Olanzapine Odt | Olanzapine | 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 | — | — | — | — | — |
| 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