Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

JUSTIN F GAINOR

Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

NPI
1487813010
CMS profile
775917
Location
BOSTON, MA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2024 · Entire year

$55,687.61

43 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2024 · entire year · sorted by reported total

By paying entity

PY2024 · entire year · sorted by reported total

Paying entityAmountRecords
PFIZER INC. $25,922.80 8
Merck Sharp & Dohme LLC $13,131.96 16
Roche Diagnostics Corporation $5,608.33 4
E.R. Squibb & Sons, L.L.C. $1,947.62 2
Janssen Biotech, Inc. $1,902.40 2
BeiGene USA, Inc. $1,875.00 1
Daiichi Sankyo Inc. $1,755.94 3
AstraZeneca Pharmaceuticals LP $1,541.25 1
Genentech USA, Inc. $1,140.00 2
Novartis Pharmaceuticals Corporation $500.00 1
AstraZeneca UK Limited $362.31 3

Payment records · PY2024

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

43 matching records · $55,687.61 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 43 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–43 of 43.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Daiichi Sankyo Inc. $1,640.0012/24/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089423747 CMS
E.R. Squibb & Sons, L.L.C. $1,920.0012/20/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101590231 CMS
Roche Diagnostics Corporation $660.4212/18/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089610264 CMS
Roche Diagnostics Corporation $660.4212/18/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089610266 CMS
Roche Diagnostics Corporation $4,235.0012/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089610268 CMS
Merck Sharp & Dohme LLC $2,440.0012/11/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141708634 CMS
Janssen Biotech, Inc. $1,800.0012/06/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078690960 CMS
Daiichi Sankyo Inc. $79.1111/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089423743 CMS
Daiichi Sankyo Inc. $36.8311/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089423745 CMS
Janssen Biotech, Inc. $102.4011/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078689527 CMS
E.R. Squibb & Sons, L.L.C. $27.6211/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101590234 CMS
Roche Diagnostics Corporation $52.4911/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089610262 CMS
PFIZER INC. $5,000.0010/28/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261132021465 CMS
PFIZER INC. $20.6009/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131585870 CMS
PFIZER INC. $10,551.2009/16/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131595384 CMS
BeiGene USA, Inc. $1,875.0008/13/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261120863252 CMS
PFIZER INC. $3,150.0008/13/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131932184 CMS
PFIZER INC. $315.0008/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131923823 CMS
Merck Sharp & Dohme LLC $150.0007/22/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141708632 CMS
Merck Sharp & Dohme LLC $6,710.0007/22/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141708636 CMS
PFIZER INC. $3,736.0007/15/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131705457 CMS
Merck Sharp & Dohme LLC $64.9907/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683163 CMS
Merck Sharp & Dohme LLC $55.0007/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683165 CMS
Merck Sharp & Dohme LLC $30.0007/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683287 CMS
Merck Sharp & Dohme LLC $206.2507/13/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683289 CMS
Merck Sharp & Dohme LLC $393.7507/12/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683161 CMS
Merck Sharp & Dohme LLC $254.8307/12/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683281 CMS
Merck Sharp & Dohme LLC $30.0007/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683285 CMS
Merck Sharp & Dohme LLC $529.9007/12/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141865952 CMS
PFIZER INC. $1,890.0007/08/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131919803 CMS
AstraZeneca Pharmaceuticals LP $1,541.2506/25/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261105358334 CMS
Merck Sharp & Dohme LLC $533.7506/24/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141775313 CMS
Merck Sharp & Dohme LLC $533.7506/24/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141775315 CMS
Merck Sharp & Dohme LLC $1,067.5006/19/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141892234 CMS
AstraZeneca UK Limited $135.0006/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261093902561 CMS
AstraZeneca UK Limited $202.3106/02/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261093904830 CMS
AstraZeneca UK Limited $25.0006/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261093956401 CMS
Merck Sharp & Dohme LLC $49.5905/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141683283 CMS
Merck Sharp & Dohme LLC $82.6505/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141865463 CMS
Genentech USA, Inc. $760.0003/26/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133043071 CMS
Genentech USA, Inc. $380.0003/26/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133043075 CMS
Novartis Pharmaceuticals Corporation $500.0003/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261086786115 CMS
PFIZER INC. $1,260.0003/08/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131202674 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $67,126.75 49
PY2020 $24,059.82 26
PY2021 $43,865.50 20
PY2022 $43,433.69 25
PY2023 $34,450.55 32
PY2024 $55,687.61 43
PY2025 $55,649.76 31

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
JUSTIN F GAINOR, NPI 1487813010. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1487813010.
APA 7
IndustryPayments. (2026). JUSTIN F GAINOR, NPI 1487813010 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1487813010
Bluebook
JUSTIN F GAINOR, NPI 1487813010, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1487813010.

Source: Centers for Medicare & Medicaid Services, Open Payments.