Healthcare provider profile · identity verified

Samuel William Mcalpine, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology · MATHER, CA · NPI 1881673804

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Samuel William Mcalpine, M.D. received $18.86 in general payments during 2025 across 1 reported records.

Atland Pharmaceuticals, 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.

Payment overview · 2025

General Payments

$18.86

1 reported records · 1 companies

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 companyCanonical companyAmountShareRecordsYear
Atland Pharmaceuticals, LLC Unresolved — no canonical attribution shown $18.86100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$18.861

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 productTypeReported companyRelated amount*RecordsYear
ORPHENADRINE CITRATE, ASPIRIN AND CAFFEINE
Normalized: orphenadrine citrate aspirin and caffeine
Drug Atland Pharmaceuticals, LLC $18.86 1 2025
Source payment records
TOLMETIN SODIUM
Normalized: tolmetin sodium
Drug Atland Pharmaceuticals, LLC $18.86 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

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium319119
Amlodipine BesylateAmlodipine Besylate315101
Fluticasone PropionateFluticasone Propionate14162
Albuterol Sulfate HfaAlbuterol Sulfate13045
GabapentinGabapentin12344
Diclofenac SodiumDiclofenac Sodium11638
OmeprazoleOmeprazole11141
Metformin HclMetformin Hcl10938
HydrochlorothiazideHydrochlorothiazide10234
Losartan PotassiumLosartan Potassium9935
Potassium ChloridePotassium Chloride9436
CarvedilolCarvedilol8729
Tramadol HclTramadol Hcl8126
JardianceEmpagliflozin7821
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7531
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7529
Pantoprazole SodiumPantoprazole Sodium7427
Tamsulosin HclTamsulosin Hcl7428
Metformin Hcl ErMetformin Hcl7126
Tizanidine HclTizanidine Hcl7023
Montelukast SodiumMontelukast Sodium6824
GlimepirideGlimepiride6619
Rosuvastatin CalciumRosuvastatin Calcium6621
FurosemideFurosemide5823
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride5622
ClopidogrelClopidogrel Bisulfate5519
Metoprolol SuccinateMetoprolol Succinate5521
AllopurinolAllopurinol5427
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide5414
Trazodone HclTrazodone Hcl5117
MeloxicamMeloxicam5020
LisinoprilLisinopril4915
PregabalinPregabalin4816
Metoprolol TartrateMetoprolol Tartrate4715
SymbicortBudesonide/Formoterol Fumarate4719
Duloxetine HclDuloxetine Hcl4517
SimvastatinSimvastatin4314
Triamcinolone AcetonideTriamcinolone Acetonide4315
Hydralazine HclHydralazine Hcl4112
JanuviaSitagliptin Phosphate41suppressed
Levothyroxine SodiumLevothyroxine Sodium4116
ChlorthalidoneChlorthalidone3916
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3216
Donepezil HclDonepezil Hcl30suppressed
LevetiracetamLevetiracetam30suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide30suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate29suppressed
FamotidineFamotidine2812
FarxigaDapagliflozin Propanediol28suppressed
Janumet XrSitagliptin Phos/Metformin Hcl28suppressed
ValsartanValsartan26suppressed
Clonidine HclClonidine Hcl24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Amitriptyline HclAmitriptyline Hcl23suppressed
ColchicineColchicine2111
Buspirone HclBuspirone Hcl20suppressed
Escitalopram OxalateEscitalopram Oxalate20suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2016
IbuprofenIbuprofen19suppressed
NitroglycerinNitroglycerin19suppressed
EliquisApixaban18suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol18suppressed
LatanoprostLatanoprost18suppressed
Sertraline HclSertraline Hcl18suppressed
AzithromycinAzithromycin1717
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
CelecoxibCelecoxib16suppressed
EntrestoSacubitril/Valsartan16suppressed
Pravastatin SodiumPravastatin Sodium16suppressed
Hydroxyzine HclHydroxyzine Hcl1511
MyrbetriqMirabegron15suppressed
NaproxenNaproxen14suppressed
Pioglitazone HclPioglitazone Hcl14suppressed
SpironolactoneSpironolactone14suppressed
XareltoRivaroxaban14suppressed
Benazepril HclBenazepril Hcl13suppressed
Oxybutynin ChlorideOxybutynin Chloride13suppressed
Promethazine HclPromethazine Hcl13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
AtenololAtenolol12suppressed
Colestipol HclColestipol Hcl12suppressed
EstradiolEstradiol12suppressed
FluconazoleFluconazole12suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate12suppressed
LovastatinLovastatin12suppressed
MethylprednisoloneMethylprednisolone12suppressed
OzempicSemaglutide12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
RamiprilRamipril12suppressed
Acetaminophen-CodeineAcetaminophen With Codeine11suppressed
Bupropion XlBupropion Hcl11suppressed
Labetalol HclLabetalol Hcl11suppressed
MethocarbamolMethocarbamol11suppressed
OlanzapineOlanzapine11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $18.86 · 1 records Atland Pharmaceuticals, LLC ORPHENADRINE CITRATE, ASPIRIN AND CAFFEINE, TOLMETIN SODIUM
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error