Healthcare provider profile · identity verified

Andrew John Armstrong, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology · DURHAM, NC · NPI 1528160199

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 Andrew John Armstrong, MD received $99,555.38 in general payments during 2025 across 53 reported records.

Astellas Pharma Europe Ltd accounted for 34.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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

Astellas Pharma Europe Ltd reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Xtandi as an associated drug or biological on 43 records involving 2 distinct recipient NPIs. Public Medicare Part D data also shows 41 claims for Xtandi by this doctor in 2024.

Astellas Pharma Global Development reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Xtandi as an associated drug or biological on 160 records involving 130 distinct recipient NPIs. Public Medicare Part D data also shows 41 claims for Xtandi by this doctor in 2024.

Astellas Pharma US 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 Xtandi as an associated drug or biological on 11345 records involving 5418 distinct recipient NPIs. Public Medicare Part D data also shows 41 claims for Xtandi by this doctor in 2024.

Bayer Healthcare Pharmaceuticals 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 Nubeqa as an associated drug or biological on 24369 records involving 9557 distinct recipient NPIs. Public Medicare Part D data also shows 114 claims for Nubeqa 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 INLYTA as an associated drug or biological on 2646 records involving 1964 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Inlyta 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 ORGOVYX as an associated drug or biological on 16373 records involving 6981 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Orgovyx 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 41 claims for Xtandi by this doctor in 2024.

Sumitomo Pharma America, 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 ORGOVYX as an associated drug or biological on 17129 records involving 6223 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Orgovyx by this doctor in 2024.

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

Payment overview · 2025

General Payments

$99,555.38

53 reported records · 13 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
Astellas Pharma Europe Ltd Unresolved — no canonical attribution shown $33,983.6934.1%132025
PFIZER INC. Unresolved — no canonical attribution shown $26,190.1726.3%52025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $19,995.4020.1%202025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $6,037.866.1%32025
Astellas Pharma Global Development Unresolved — no canonical attribution shown $5,400.005.4%12025
Amgen Inc. Unresolved — no canonical attribution shown $4,116.004.1%12025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $2,299.352.3%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $702.000.7%12025
AstraZeneca UK Limited Unresolved — no canonical attribution shown $342.500.3%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $180.460.2%22025
PROGENICS PHARMACEUTICALS, INC. Unresolved — no canonical attribution shown $154.400.2%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $133.360.1%22025
Janssen Scientific Affairs, LLC Unresolved — no canonical attribution shown $20.190.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$71,668.4014
Travel and Lodging$14,623.6811
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11,548.001
Food and Beverage$1,517.6525
Education$197.652

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
XTANDI
Normalized: xtandi
Drug Astellas Pharma Europe Ltd, Astellas Pharma Global Development, Astellas Pharma US Inc, PFIZER INC. $46,557.15 18 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $19,111.00 3 2025
Source payment records
PLUVICTO
Normalized: pluvicto
Drug Novartis Pharmaceuticals Corporation $6,037.86 3 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC., Sumitomo Pharma America, Inc. $2,362.35 3 2025
Source payment records
PYLARIFY
Normalized: pylarify
Drug PROGENICS PHARMACEUTICALS, INC. $154.40 1 2025
Source payment records
ENHERTU
Normalized: enhertu
Biological AstraZeneca Pharmaceuticals LP $43.25 1 2025
Source payment records
AKEEGA
Normalized: akeega
Drug Janssen Scientific Affairs, LLC $20.19 1 2025
Source payment records
ERLEADA
Normalized: erleada
Drug Janssen Scientific Affairs, LLC $20.19 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
ORGOVYX
orgovyx
2025 Orgovyx 2024 18
Beneficiary count suppressed
exact normalized Medicare Part D
XTANDI
xtandi
2025 Xtandi 2024 41
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
Astellas Pharma Europe Ltd
Exact reporting entity; no affiliate inference
2025 Xtandi
open payments reported associated product
CMS Open Payments — General Payments
43 supporting records · 2 recipient NPIs · example record 1232180214
Xtandi · 2024
Exact normalized brand match · 1 Part D row
41 suppressed by CMS
Astellas Pharma Global Development
Exact reporting entity; no affiliate inference
2025 Xtandi
open payments reported associated product
CMS Open Payments — General Payments
160 supporting records · 130 recipient NPIs · example record 1234123543
Xtandi · 2024
Exact normalized brand match · 1 Part D row
41 suppressed by CMS
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Xtandi
open payments reported associated product
CMS Open Payments — General Payments
11345 supporting records · 5418 recipient NPIs · example record 1238560686
Xtandi · 2024
Exact normalized brand match · 1 Part D row
41 suppressed by CMS
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Nubeqa
open payments reported associated product
CMS Open Payments — General Payments
24369 supporting records · 9557 recipient NPIs · example record 1225434669
Nubeqa · 2024
Exact normalized brand match · 1 Part D row
114 20
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 INLYTA
open payments reported associated product
CMS Open Payments — General Payments
2646 supporting records · 1964 recipient NPIs · example record 1228795917
Inlyta · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ORGOVYX
open payments reported associated product
CMS Open Payments — General Payments
16373 supporting records · 6981 recipient NPIs · example record 1228794230
Orgovyx · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 XTANDI
open payments reported associated product
CMS Open Payments — General Payments
19368 supporting records · 7657 recipient NPIs · example record 1228794230
Xtandi · 2024
Exact normalized brand match · 1 Part D row
41 suppressed by CMS
Sumitomo Pharma America, Inc.
Exact reporting entity; no affiliate inference
2025 ORGOVYX
open payments reported associated product
CMS Open Payments — General Payments
17129 supporting records · 6223 recipient NPIs · example record 1176593507
Orgovyx · 2024
Exact normalized brand match · 1 Part D row
18 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
PrednisonePrednisone15839
Abiraterone AcetateAbiraterone Acetate14023
NubeqaDarolutamide11420
XtandiEnzalutamide41suppressed
CabometyxCabozantinib S-Malate26suppressed
BicalutamideBicalutamide21suppressed
DexamethasoneDexamethasone1912
OrgovyxRelugolix18suppressed
InlytaAxitinib15suppressed
Prochlorperazine MaleateProchlorperazine Maleate1412
WeliregBelzutifan14suppressed

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 $99,555.38 · 53 records Astellas Pharma Europe Ltd AKEEGA, ENHERTU, ERLEADA, ORGOVYX, PLUVICTO, PYLARIFY, TALZENNA, XTANDI 8
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