Healthcare provider profile · identity verified

Matthew E. Schaefer, D.O.

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · SAN ANTONIO, TX · NPI 1346205648

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 Matthew E. Schaefer, D.O. received $968.84 in general payments during 2025 across 43 reported records.

AstraZeneca Pharmaceuticals LP accounted for 19.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 18 associated products.

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

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 129 claims for Farxiga by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported LOKELMA as an associated drug or biological on 6897 records involving 4326 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Lokelma by this doctor in 2024.

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

Payment overview · 2025

General Payments

$968.84

43 reported records · 17 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $191.3319.8%92025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $88.489.1%32025
OPKO Pharmaceuticals, LLC Unresolved — no canonical attribution shown $84.628.7%42025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $81.928.5%42025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $76.487.9%42025
KYOWA KIRIN, INC. Unresolved — no canonical attribution shown $73.127.5%32025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $62.436.4%32025
GENZYME CORPORATION Unresolved — no canonical attribution shown $49.065.1%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $47.684.9%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $40.274.2%22025
Apellis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $31.173.2%12025
Longeviti Neuro Solutions INC Unresolved — no canonical attribution shown $28.603.0%12025
Amgen Inc. Unresolved — no canonical attribution shown $28.573.0%12025
Pharmacosmos Therapeutics Inc. Unresolved — no canonical attribution shown $22.152.3%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $21.912.3%12025
Chiesi USA, Inc. Unresolved — no canonical attribution shown $21.842.2%12025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.212.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$968.8443

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
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $167.16 8 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $88.48 3 2025
Source payment records
RAYALDEE
Normalized: rayaldee
Drug OPKO Pharmaceuticals, LLC $84.62 4 2025
Source payment records
INJECTAFER
Normalized: injectafer
Drug Daiichi Sankyo Inc. $81.92 4 2025
Source payment records
JYNARQUE
Normalized: jynarque
Drug Otsuka America Pharmaceutical, Inc. $76.48 4 2025
Source payment records
CRYSVITA
Normalized: crysvita
Drug KYOWA KIRIN, INC. $73.12 3 2025
Source payment records
LOKELMA
Normalized: lokelma
Drug AstraZeneca Pharmaceuticals LP $55.30 2 2025
Source payment records
FABRAZYME
Normalized: fabrazyme
Biological GENZYME CORPORATION $49.06 2 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $47.68 2 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $47.68 2 2025
Source payment records
ClearFit
Normalized: clearfit
Device Longeviti Neuro Solutions INC $28.60 1 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $28.57 1 2025
Source payment records
MONOFERRIC
Normalized: monoferric
Drug Pharmacosmos Therapeutics Inc. $22.15 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $21.91 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $21.91 1 2025
Source payment records
ELFABRIO
Normalized: elfabrio
Drug Chiesi USA, Inc. $21.84 1 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $19.21 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $18.49 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
FARXIGA
farxiga
2025 Farxiga 2024 129 exact normalized Medicare Part D
LOKELMA
lokelma
2025 Lokelma 2024 23
Beneficiary count suppressed
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
129 38
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 LOKELMA
open payments reported associated product
CMS Open Payments — General Payments
6897 supporting records · 4326 recipient NPIs · example record 1206131624
Lokelma · 2024
Exact normalized brand match · 1 Part D row
23 suppressed by CMS

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
CalcitriolCalcitriol14856
Losartan PotassiumLosartan Potassium13749
FarxigaDapagliflozin Propanediol12938
FurosemideFurosemide12048
Nifedipine ErNifedipine10340
LisinoprilLisinopril9733
Amlodipine BesylateAmlodipine Besylate8435
AllopurinolAllopurinol7829
CarvedilolCarvedilol7334
TorsemideTorsemide6126
Metoprolol SuccinateMetoprolol Succinate6016
Tamsulosin HclTamsulosin Hcl5521
ProsolParenteral Amino Acid 20% No.143suppressed
SpironolactoneSpironolactone3917
Potassium ChloridePotassium Chloride3616
CefdinirCefdinir3528
Calcium AcetateCalcium Acetate3214
ChlorthalidoneChlorthalidone3211
Hydralazine HclHydralazine Hcl3211
BumetanideBumetanide29suppressed
Midodrine HclMidodrine Hcl2815
Sevelamer CarbonateSevelamer Carbonate2813
HydrochlorothiazideHydrochlorothiazide2713
LokelmaSodium Zirconium Cyclosilicate23suppressed
Pantoprazole SodiumPantoprazole Sodium22suppressed
Atorvastatin CalciumAtorvastatin Calcium21suppressed
FinasterideFinasteride21suppressed
Olmesartan MedoxomilOlmesartan Medoxomil20suppressed
PrednisonePrednisone20suppressed
Terazosin HclTerazosin Hcl20suppressed
IrbesartanIrbesartan18suppressed
MounjaroTirzepatide17suppressed
Cinacalcet HclCinacalcet Hcl12suppressed
SamscaTolvaptan12suppressed
VeltassaPatiromer Calcium Sorbitex12suppressed
MinoxidilMinoxidil11suppressed

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 $968.84 · 43 records AstraZeneca Pharmaceuticals LP AREXVY, CRYSVITA, ClearFit, ELFABRIO, FABRAZYME, FARXIGA, Fabhalta, INJECTAFER, JYNARQUE, KRYSTEXXA, LOKELMA, MONOFERRIC, Ozempic, PURIFIED CORTROPHIN GEL, RAYALDEE, Rybelsus, SHINGRIX, TARPEYO 2
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