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

STEPHAN W ANDERSON

Allopathic & Osteopathic Physicians Radiology Diagnostic Radiology

NPI
1235243122
CMS profile
540683
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 · PY2019 · Entire year

$374,205.00

165 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $374,205.00 165

By paying entity

PY2019 · entire year · sorted by reported total

Paying entityAmountRecords
Merck Sharp & Dohme Corporation $293,345.00 130
PFIZER INC. $74,080.00 23
MEDIVATION INC. $6,780.00 12

Payment records · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

165 matching records · $374,205.00 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 165 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 1–50 of 165.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Merck Sharp & Dohme Corporation $3,175.0012/16/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695876057 CMS
MEDIVATION INC. $550.0012/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673785755 CMS
Merck Sharp & Dohme Corporation $50.0012/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695876061 CMS
Merck Sharp & Dohme Corporation $565.0012/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695876063 CMS
Merck Sharp & Dohme Corporation $170.0012/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695878711 CMS
PFIZER INC. $1,450.0012/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673786051 CMS
PFIZER INC. $6,260.0012/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673787333 CMS
Merck Sharp & Dohme Corporation $1,745.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885545 CMS
Merck Sharp & Dohme Corporation $6,960.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885765 CMS
Merck Sharp & Dohme Corporation $725.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885767 CMS
Merck Sharp & Dohme Corporation $960.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885773 CMS
Merck Sharp & Dohme Corporation $240.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885973 CMS
Merck Sharp & Dohme Corporation $300.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885979 CMS
Merck Sharp & Dohme Corporation $3,785.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885985 CMS
Merck Sharp & Dohme Corporation $485.0012/02/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695886115 CMS
MEDIVATION INC. $350.0011/21/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673787329 CMS
Merck Sharp & Dohme Corporation $105.0011/21/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695871147 CMS
Merck Sharp & Dohme Corporation $190.0011/21/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695871247 CMS
Merck Sharp & Dohme Corporation $6,810.0011/21/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695871257 CMS
PFIZER INC. $2,430.0011/21/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673786049 CMS
PFIZER INC. $860.0011/21/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673787637 CMS
Merck Sharp & Dohme Corporation $120.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885663 CMS
Merck Sharp & Dohme Corporation $540.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885671 CMS
Merck Sharp & Dohme Corporation $5,820.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885673 CMS
Merck Sharp & Dohme Corporation $2,340.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885863 CMS
Merck Sharp & Dohme Corporation $240.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885867 CMS
Merck Sharp & Dohme Corporation $360.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885981 CMS
Merck Sharp & Dohme Corporation $420.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885989 CMS
Merck Sharp & Dohme Corporation $4,500.0011/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695888355 CMS
MEDIVATION INC. $140.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673787331 CMS
Merck Sharp & Dohme Corporation $1,150.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695824307 CMS
Merck Sharp & Dohme Corporation $170.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695824311 CMS
Merck Sharp & Dohme Corporation $445.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695824315 CMS
Merck Sharp & Dohme Corporation $75.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695824321 CMS
PFIZER INC. $1,140.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673785469 CMS
PFIZER INC. $8,110.0010/24/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673787337 CMS
Merck Sharp & Dohme Corporation $1,500.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885541 CMS
Merck Sharp & Dohme Corporation $60.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885761 CMS
Merck Sharp & Dohme Corporation $180.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885855 CMS
Merck Sharp & Dohme Corporation $2,280.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885861 CMS
Merck Sharp & Dohme Corporation $420.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695885987 CMS
Merck Sharp & Dohme Corporation $1,560.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695888343 CMS
Merck Sharp & Dohme Corporation $240.0010/01/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695888351 CMS
MEDIVATION INC. $450.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673787335 CMS
Merck Sharp & Dohme Corporation $3,535.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695814943 CMS
Merck Sharp & Dohme Corporation $380.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695814945 CMS
Merck Sharp & Dohme Corporation $5,435.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695814949 CMS
Merck Sharp & Dohme Corporation $870.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695815035 CMS
PFIZER INC. $3,410.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673785467 CMS
PFIZER INC. $2,010.0009/19/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673785753 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $374,205.00 165
PY2020 $362,885.00 209
PY2021 $795,975.00 325
PY2022 $5,697.50 3
PY2023 $13,532.50 9
PY2024 $12,754.75 13
PY2025 $600.00 1

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
STEPHAN W ANDERSON, NPI 1235243122. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1235243122.
APA 7
IndustryPayments. (2026). STEPHAN W ANDERSON, NPI 1235243122 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1235243122
Bluebook
STEPHAN W ANDERSON, NPI 1235243122, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1235243122.

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