Healthcare provider profile · identity verified

Derek Alexander Oldham, MD

Allopathic & Osteopathic Physicians|Family Medicine · CARMEL, IN · NPI 1346338894

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 Derek Alexander Oldham, MD received $29.61 in general payments during 2025 across 2 reported records.

PFIZER INC. accounted for 51.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Shingrix.

GlaxoSmithKline, 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 SHINGRIX as an associated drug or biological on 43515 records involving 26794 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Shingrix by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Paxlovid by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$29.61

2 reported records · 2 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
PFIZER INC. Unresolved — no canonical attribution shown $15.2751.6%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.3448.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$29.612

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
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $15.27 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $15.27 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $15.27 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $14.34 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 productPayment yearPart D brandPart D yearClaimsMatch methodSource
SHINGRIX
shingrix
2025 Shingrix 2024 43 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 companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 SHINGRIX
open payments reported associated product
CMS Open Payments — General Payments
43515 supporting records · 26794 recipient NPIs · example record 1190332452
Shingrix · 2024
Exact normalized brand match · 1 Part D row
43 36
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
35 12
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
19 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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium30298
Amlodipine BesylateAmlodipine Besylate16856
Losartan PotassiumLosartan Potassium15560
Rosuvastatin CalciumRosuvastatin Calcium14352
Metformin HclMetformin Hcl14142
Levothyroxine SodiumLevothyroxine Sodium13749
LisinoprilLisinopril10931
OmeprazoleOmeprazole10439
Tamsulosin HclTamsulosin Hcl10135
Zolpidem TartrateZolpidem Tartrate7512
GabapentinGabapentin7427
Montelukast SodiumMontelukast Sodium7222
Metoprolol TartrateMetoprolol Tartrate7116
Pantoprazole SodiumPantoprazole Sodium7023
Bupropion XlBupropion Hcl6721
Metoprolol SuccinateMetoprolol Succinate6630
MounjaroTirzepatide66suppressed
Escitalopram OxalateEscitalopram Oxalate6519
AllopurinolAllopurinol6422
OzempicSemaglutide61suppressed
FurosemideFurosemide5625
LorazepamLorazepam5611
AlprazolamAlprazolam5413
HydrochlorothiazideHydrochlorothiazide5118
Tramadol HclTramadol Hcl5125
SimvastatinSimvastatin4915
Duloxetine HclDuloxetine Hcl4813
Oxycodone HclOxycodone Hcl48suppressed
Trazodone HclTrazodone Hcl4716
Pravastatin SodiumPravastatin Sodium4618
MeloxicamMeloxicam4521
PregabalinPregabalin4411
ShingrixVaricella-Zoster Ge/As01b/Pf4336
EzetimibeEzetimibe4217
Sertraline HclSertraline Hcl4214
SynthroidLevothyroxine Sodium3611
EliquisApixaban3512
CelecoxibCelecoxib33suppressed
GlipizideGlipizide3313
Potassium ChloridePotassium Chloride3312
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide32suppressed
Testosterone CypionateTestosterone Cypionate29suppressed
FinasterideFinasteride2811
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen2821
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide28suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid2814
ValsartanValsartan28suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2623
CephalexinCephalexin2618
JanuviaSitagliptin Phosphate26suppressed
Albuterol Sulfate HfaAlbuterol Sulfate25suppressed
SpironolactoneSpironolactone25suppressed
ClopidogrelClopidogrel Bisulfate23suppressed
CarvedilolCarvedilol22suppressed
Clonidine HclClonidine Hcl22suppressed
Doxycycline HyclateDoxycycline Hyclate2217
AzithromycinAzithromycin2121
ClonazepamClonazepam21suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide21suppressed
Glipizide ErGlipizide20suppressed
RybelsusSemaglutide20suppressed
Alendronate SodiumAlendronate Sodium19suppressed
AtenololAtenolol19suppressed
FarxigaDapagliflozin Propanediol19suppressed
PaxlovidNirmatrelvir/Ritonavir1918
Citalopram HbrCitalopram Hydrobromide17suppressed
Folic AcidFolic Acid17suppressed
JardianceEmpagliflozin17suppressed
MethylprednisoloneMethylprednisolone1716
Nebivolol HclNebivolol Hcl17suppressed
Ondansetron HclOndansetron Hcl17suppressed
TemazepamTemazepam17suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
Fluoxetine HclFluoxetine Hcl16suppressed
TestosteroneTestosterone16suppressed
AmoxicillinAmoxicillin15suppressed
Oxybutynin Chloride ErOxybutynin Chloride15suppressed
Repatha SureclickEvolocumab15suppressed
DiazepamDiazepam14suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
Meclizine HclMeclizine Hcl14suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
LantusInsulin Glargine,hum.Rec.Anlog13suppressed
NabumetoneNabumetone13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
Azelastine HclAzelastine Hcl12suppressed
Doxazosin MesylateDoxazosin Mesylate12suppressed
FamotidineFamotidine12suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
IbuprofenIbuprofen12suppressed
NaproxenNaproxen12suppressed
Raloxifene HclRaloxifene Hcl12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
XareltoRivaroxaban12suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
PremarinEstrogens, Conjugated11suppressed
RamiprilRamipril11suppressed

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 $29.61 · 2 records PFIZER INC. ABRYSVO, COMIRNATY, PREVNAR 20, SHINGRIX 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