Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

BENJAMIN SAMSTEIN

Allopathic & Osteopathic Physicians Surgery

NPI
1164463733
CMS profile
324541
Location
ANN ARBOR, MI

General Payments · PY2018–2024

$10,389.99

  • Reported across 44 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$4,483.97

11 records · 0 disputed

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

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Travel and Lodging $3,105.58 8
Food and Beverage $1,378.39 3

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
HISTOSONICS, INC. $2,685.02 9
TRANSMEDICS, INC. $1,798.95 2

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,297.35 7
PY2020 $18.26 1
PY2022 $3,730.13 15
PY2023 $860.28 10
PY2024 $4,483.97 11

Payment records · PY2024 (11)

Sorted by paying entity, then date · as published by CMS

Program year 2024 2018202020222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
HISTOSONICS, INC. $1,306.63 09/05/2024 Food and Beverage Undisputed 01/23/2026 1154754021 CMS
HISTOSONICS, INC. $35.88 12/10/2024 Food and Beverage Undisputed 01/23/2026 1154754023 CMS
HISTOSONICS,INC. $32.00 09/05/2024 Travel and Lodging Undisputed 01/23/2026 1154802611 CMS
HISTOSONICS,INC. $443.96 09/05/2024 Travel and Lodging Undisputed 01/23/2026 1154802613 CMS
HISTOSONICS,INC. $172.86 09/18/2024 Travel and Lodging Undisputed 01/23/2026 1154802609 CMS
HISTOSONICS,INC. $32.00 11/07/2024 Travel and Lodging Undisputed 01/23/2026 1154802605 CMS
HISTOSONICS,INC. $452.95 11/07/2024 Travel and Lodging Undisputed 01/23/2026 1154802607 CMS
HISTOSONICS,INC. $35.88 12/10/2024 Food and Beverage Undisputed 01/23/2026 1154802615 CMS
HISTOSONICS,INC. $172.86 12/12/2024 Travel and Lodging Undisputed 01/23/2026 1154802603 CMS
TransMedics, Inc. $672.41 11/01/2024 Travel and Lodging Undisputed 01/23/2026 1154757352 CMS
TransMedics, Inc. $1,126.54 11/13/2024 Travel and Lodging Undisputed 01/23/2026 1154757354 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2020, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2020 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.