IndustryPayments
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

CHAN M MA

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1487642120
CMS profile
249116
Location
NEW YORK, NY

General Payments · PY2018–2024

$46,907.39

  • Reported across 664 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$4,497.08

71 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.

Related groups: Nephrology NY All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,429.63 68
Education $67.45 3

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $997.07 13
CALLIDITAS THERAPEUTICS US INC. $551.42 9
Boehringer Ingelheim Pharmaceuticals, Inc. $375.00 3
Retrophin, Inc. $357.28 4
Ardelyx, Inc. $345.39 6
Gilead Sciences, Inc. $340.63 4
GlaxoSmithKline, LLC. $334.22 5
Aurinia Pharma U.S., Inc. $253.68 2
Bayer HealthCare Pharmaceuticals Inc. $217.84 5
Amgen Inc. $195.62 3
NOVARTIS PHARMACEUTICALS CORPORATION $157.82 6
INTUITIVE SURGICAL, INC. $123.44 1
Otsuka America Pharmaceutical, Inc. $108.66 4
AKEBIA THERAPEUTICS INC $70.40 3
OPKO Pharmaceuticals, LLC $42.84 2
Azurity Pharmaceuticals, Inc. $25.77 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $13,742.56 137
PY2019 $11,645.04 121
PY2020 $4,316.44 102
PY2021 $4,602.51 81
PY2022 $4,045.38 83
PY2023 $4,058.38 69
PY2024 $4,497.08 71

Payment records · PY2024 (71)

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

Program year 2024 201820192020202120222023 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
AKEBIA THERAPEUTICS INC $22.74 08/12/2024 Food and Beverage Undisputed 01/23/2026 1145827358 CMS
AKEBIA THERAPEUTICS INC $23.05 12/02/2024 Food and Beverage Undisputed 01/23/2026 1145831523 CMS
AKEBIA THERAPEUTICS INC $24.61 12/02/2024 Education Undisputed 01/23/2026 1145834615 CMS
Amgen Inc. $135.82 03/06/2024 Food and Beverage Undisputed 01/23/2026 1111639184 CMS
Amgen Inc. $27.14 04/15/2024 Food and Beverage Undisputed 01/23/2026 1111639182 CMS
Amgen Inc. $32.66 05/10/2024 Food and Beverage Undisputed 01/23/2026 1111639186 CMS
Ardelyx, Inc. $137.18 05/23/2024 Food and Beverage Undisputed 01/23/2026 1146693230 CMS
Ardelyx, Inc. $20.88 06/11/2024 Food and Beverage Undisputed 01/23/2026 1146693232 CMS
Ardelyx, Inc. $27.05 08/06/2024 Food and Beverage Undisputed 01/23/2026 1146693234 CMS
Ardelyx, Inc. $21.24 09/19/2024 Food and Beverage Undisputed 01/23/2026 1146693236 CMS
Ardelyx, Inc. $120.69 10/15/2024 Food and Beverage Undisputed 01/23/2026 1146693238 CMS
Ardelyx, Inc. $18.35 11/18/2024 Food and Beverage Undisputed 01/23/2026 1146693240 CMS
AstraZeneca Pharmaceuticals LP $29.45 01/16/2024 Food and Beverage Undisputed 01/23/2026 1105597339 CMS
AstraZeneca Pharmaceuticals LP $124.31 01/24/2024 Food and Beverage Undisputed 01/23/2026 1105663890 CMS
AstraZeneca Pharmaceuticals LP $25.15 03/05/2024 Food and Beverage Undisputed 01/23/2026 1105424096 CMS
AstraZeneca Pharmaceuticals LP $125.00 03/14/2024 Food and Beverage Undisputed 01/23/2026 1105460272 CMS
AstraZeneca Pharmaceuticals LP $125.00 04/17/2024 Food and Beverage Undisputed 01/23/2026 1105475741 CMS
AstraZeneca Pharmaceuticals LP $25.11 04/25/2024 Food and Beverage Undisputed 01/23/2026 1105656132 CMS
AstraZeneca Pharmaceuticals LP $24.88 05/07/2024 Food and Beverage Undisputed 01/23/2026 1104336116 CMS
AstraZeneca Pharmaceuticals LP $120.81 06/05/2024 Food and Beverage Undisputed 01/23/2026 1105273193 CMS
AstraZeneca Pharmaceuticals LP $24.54 06/13/2024 Food and Beverage Undisputed 01/23/2026 1104553726 CMS
AstraZeneca Pharmaceuticals LP $125.00 07/17/2024 Food and Beverage Undisputed 01/23/2026 1105277216 CMS
AstraZeneca Pharmaceuticals LP $29.55 08/02/2024 Food and Beverage Undisputed 01/23/2026 1104358423 CMS
AstraZeneca Pharmaceuticals LP $124.84 09/26/2024 Food and Beverage Undisputed 01/23/2026 1105559444 CMS
AstraZeneca Pharmaceuticals LP $93.43 10/09/2024 Food and Beverage Undisputed 01/23/2026 1104444954 CMS
Aurinia Pharma U.S., Inc. $131.25 03/02/2024 Food and Beverage Undisputed 01/23/2026 1150686599 CMS
Aurinia Pharma U.S., Inc. $122.43 05/11/2024 Food and Beverage Undisputed 01/23/2026 1150686601 CMS
Azurity Pharmaceuticals, Inc. $25.77 10/01/2024 Food and Beverage Undisputed 01/23/2026 1134009175 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.65 01/23/2024 Food and Beverage Undisputed 01/23/2026 1086145603 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.87 04/10/2024 Food and Beverage Undisputed 01/23/2026 1086213073 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.37 06/26/2024 Food and Beverage Undisputed 01/23/2026 1086247768 CMS
Bayer Healthcare Pharmaceuticals Inc. $124.99 06/27/2024 Food and Beverage Undisputed 01/23/2026 1086210403 CMS
Bayer Healthcare Pharmaceuticals Inc. $27.96 08/14/2024 Food and Beverage Undisputed 01/23/2026 1086159062 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $125.00 07/24/2024 Food and Beverage Undisputed 01/23/2026 1118029502 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $125.00 07/25/2024 Food and Beverage Undisputed 01/23/2026 1118029504 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $125.00 09/11/2024 Food and Beverage Undisputed 01/23/2026 1118029506 CMS
CALLIDITAS THERAPEUTICS US INC. $20.04 02/27/2024 Food and Beverage Undisputed 01/23/2026 1141510216 CMS
CALLIDITAS THERAPEUTICS US INC. $23.21 06/10/2024 Food and Beverage Undisputed 01/23/2026 1141516677 CMS
CALLIDITAS THERAPEUTICS US INC. $122.43 06/11/2024 Food and Beverage Undisputed 01/23/2026 1141516755 CMS
CALLIDITAS THERAPEUTICS US INC. $23.24 06/18/2024 Food and Beverage Undisputed 01/23/2026 1141517165 CMS
CALLIDITAS THERAPEUTICS US INC. $150.00 07/22/2024 Food and Beverage Undisputed 01/23/2026 1141518881 CMS
CALLIDITAS THERAPEUTICS US INC. $22.60 08/19/2024 Food and Beverage Undisputed 01/23/2026 1141520617 CMS
CALLIDITAS THERAPEUTICS US INC. $20.68 10/24/2024 Food and Beverage Undisputed 01/23/2026 1141525524 CMS
CALLIDITAS THERAPEUTICS US INC. $145.92 12/11/2024 Food and Beverage Undisputed 01/23/2026 1141529397 CMS
CALLIDITAS THERAPEUTICS US INC. $23.30 12/13/2024 Food and Beverage Undisputed 01/23/2026 1141529581 CMS
Gilead Sciences, Inc. $125.00 02/22/2024 Food and Beverage Undisputed 01/23/2026 1133826321 CMS
Gilead Sciences, Inc. $31.88 07/11/2024 Food and Beverage Undisputed 01/23/2026 1133826323 CMS
Gilead Sciences, Inc. $33.75 10/22/2024 Food and Beverage Undisputed 01/23/2026 1133826325 CMS
Gilead Sciences, Inc. $150.00 10/23/2024 Food and Beverage Undisputed 01/23/2026 1133826327 CMS
GlaxoSmithKline, LLC. $124.98 03/26/2024 Food and Beverage Undisputed 01/23/2026 1116283689 CMS
GlaxoSmithKline, LLC. $23.60 04/29/2024 Food and Beverage Undisputed 01/23/2026 1116597003 CMS
GlaxoSmithKline, LLC. $25.80 09/19/2024 Food and Beverage Undisputed 01/23/2026 1116608792 CMS
GlaxoSmithKline, LLC. $34.84 10/08/2024 Food and Beverage Undisputed 01/23/2026 1116494034 CMS
GlaxoSmithKline, LLC. $125.00 12/09/2024 Food and Beverage Undisputed 01/23/2026 1116010513 CMS
INTUITIVE SURGICAL, INC. $123.44 11/12/2024 Food and Beverage Undisputed 01/23/2026 1137128750 CMS
Novartis Pharmaceuticals Corporation $26.62 02/15/2024 Food and Beverage Undisputed 01/23/2026 1087116136 CMS
Novartis Pharmaceuticals Corporation $29.39 08/19/2024 Food and Beverage Undisputed 01/23/2026 1087116148 CMS
Novartis Pharmaceuticals Corporation $29.39 09/27/2024 Food and Beverage Undisputed 01/23/2026 1087116152 CMS
Novartis Pharmaceuticals Corporation $27.47 10/10/2024 Food and Beverage Undisputed 01/23/2026 1087116154 CMS
Novartis Pharmaceuticals Corporation $15.51 10/25/2024 Food and Beverage Undisputed 01/23/2026 1087116156 CMS
Novartis Pharmaceuticals Corporation $29.44 12/06/2024 Food and Beverage Undisputed 01/23/2026 1087116158 CMS
OPKO Pharmaceuticals, LLC $17.01 05/08/2024 Education Undisputed 01/23/2026 1112846836 CMS
OPKO Pharmaceuticals, LLC $25.83 06/17/2024 Education Undisputed 01/23/2026 1112846838 CMS
Otsuka America Pharmaceutical, Inc. $25.06 01/29/2024 Food and Beverage Undisputed 01/23/2026 1118933032 CMS
Otsuka America Pharmaceutical, Inc. $26.45 06/20/2024 Food and Beverage Undisputed 01/23/2026 1118933034 CMS
Otsuka America Pharmaceutical, Inc. $27.21 08/01/2024 Food and Beverage Undisputed 01/23/2026 1118933036 CMS
Otsuka America Pharmaceutical, Inc. $29.94 11/08/2024 Food and Beverage Undisputed 01/23/2026 1118933038 CMS
Travere Therapeutics, Inc. $27.67 01/16/2024 Food and Beverage Undisputed 01/23/2026 1149899307 CMS
Travere Therapeutics, Inc. $23.48 07/23/2024 Food and Beverage Undisputed 01/23/2026 1149899303 CMS
Travere Therapeutics, Inc. $136.87 10/08/2024 Food and Beverage Undisputed 01/23/2026 1149899311 CMS
Travere Therapeutics, Inc. $169.26 12/12/2024 Food and Beverage Undisputed 01/23/2026 1149899315 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, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , 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.