Healthcare provider profile · identity verified

Calvin Grubbs, MD, FAAFP

Allopathic & Osteopathic Physicians|Family Medicine · TACOMA, WA · NPI 1487997169

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 Calvin Grubbs, MD, FAAFP received $76.69 in general payments during 2025 across 2 reported records.

Abbott Laboratories 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

$76.69

2 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
Abbott Laboratories Unresolved — no canonical attribution shown $76.69100.0%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Long term medical supply or device loan$49.951
Food and Beverage$26.741

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
FREESTYLE INSULINX
Normalized: freestyle insulinx
Device Abbott Laboratories $49.95 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $26.74 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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 Calcium9736
GabapentinGabapentin6421
LisinoprilLisinopril6118
Losartan PotassiumLosartan Potassium5218
Levothyroxine SodiumLevothyroxine Sodium5116
Amlodipine BesylateAmlodipine Besylate5021
Cyclobenzaprine HclCyclobenzaprine Hcl4711
Albuterol Sulfate HfaAlbuterol Sulfate4421
Tamsulosin HclTamsulosin Hcl4411
Trazodone HclTrazodone Hcl4415
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen43suppressed
Metformin HclMetformin Hcl3815
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen33suppressed
OmeprazoleOmeprazole3016
Tizanidine HclTizanidine Hcl30suppressed
Zolpidem TartrateZolpidem Tartrate28suppressed
FamotidineFamotidine26suppressed
Escitalopram OxalateEscitalopram Oxalate24suppressed
Oxycodone HclOxycodone Hcl24suppressed
Rosuvastatin CalciumRosuvastatin Calcium24suppressed
HydrochlorothiazideHydrochlorothiazide23suppressed
MeloxicamMeloxicam23suppressed
Quetiapine FumarateQuetiapine Fumarate23suppressed
Dicyclomine HclDicyclomine Hcl22suppressed
SimvastatinSimvastatin22suppressed
Hydroxyzine HclHydroxyzine Hcl21suppressed
Pantoprazole SodiumPantoprazole Sodium21suppressed
Bupropion XlBupropion Hcl20suppressed
EliquisApixaban20suppressed
FenofibrateFenofibrate20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
Tramadol HclTramadol Hcl20suppressed
Triamcinolone AcetonideTriamcinolone Acetonide20suppressed
Metformin Hcl ErMetformin Hcl19suppressed
Metoprolol SuccinateMetoprolol Succinate19suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide19suppressed
Ondansetron OdtOndansetron19suppressed
CarvedilolCarvedilol18suppressed
FinasterideFinasteride18suppressed
Diclofenac SodiumDiclofenac Sodium17suppressed
Fluticasone PropionateFluticasone Propionate17suppressed
LovastatinLovastatin17suppressed
Pravastatin SodiumPravastatin Sodium16suppressed
FurosemideFurosemide15suppressed
MethocarbamolMethocarbamol15suppressed
PregabalinPregabalin15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
AllopurinolAllopurinol14suppressed
LorazepamLorazepam14suppressed
Sertraline HclSertraline Hcl14suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril13suppressed
ClopidogrelClopidogrel Bisulfate13suppressed
Glipizide ErGlipizide13suppressed
MirtazapineMirtazapine13suppressed
Valproic AcidValproic Acid (As Sodium Salt)13suppressed
BaclofenBaclofen12suppressed
Duloxetine HclDuloxetine Hcl12suppressed
Metoprolol TartrateMetoprolol Tartrate12suppressed
OzempicSemaglutide12suppressed
Buspirone HclBuspirone Hcl11suppressed
Fluoxetine HclFluoxetine Hcl11suppressed
PrednisonePrednisone11suppressed

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 $76.69 · 2 records Abbott Laboratories FREESTYLE INSULINX, FREESTYLE LIBRE 3
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