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

MARY CHAO

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1881814002
CMS profile
175891
Location
LANSING, MI

General Payments · PY2018–2024

$7,009.77

  • Reported across 469 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$849.39

47 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
Food and Beverage $849.39 47

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,270.90 107
PY2019 $1,462.21 106
PY2020 $225.45 16
PY2021 $380.09 25
PY2022 $1,285.08 78
PY2023 $1,536.65 90
PY2024 $849.39 47

Payment records · PY2024 (47)

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
Abbott Laboratories $19.35 05/03/2024 Food and Beverage Undisputed 01/23/2026 1125320827 CMS
Amgen Inc. $17.54 01/23/2024 Food and Beverage Undisputed 01/23/2026 1115491799 CMS
Amgen Inc. $17.43 02/20/2024 Food and Beverage Undisputed 01/23/2026 1117221777 CMS
Amgen Inc. $18.82 04/03/2024 Food and Beverage Undisputed 01/23/2026 1117221779 CMS
Amgen Inc. $17.66 06/10/2024 Food and Beverage Undisputed 01/23/2026 1117221781 CMS
AstraZeneca Pharmaceuticals LP $14.48 07/02/2024 Food and Beverage Undisputed 01/23/2026 1104780986 CMS
Averitas Pharma Inc. $22.40 01/29/2024 Food and Beverage Undisputed 01/23/2026 1133420973 CMS
Bayer Healthcare Pharmaceuticals Inc. $16.17 06/07/2024 Food and Beverage Undisputed 01/23/2026 1086237922 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.59 04/24/2024 Food and Beverage Undisputed 01/23/2026 1118213900 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.59 04/30/2024 Food and Beverage Undisputed 01/23/2026 1118213904 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $23.12 05/16/2024 Food and Beverage Undisputed 01/23/2026 1118213908 CMS
Exact Sciences Corporation $16.91 03/04/2024 Food and Beverage Undisputed 01/23/2026 1114612454 CMS
Exact Sciences Corporation $13.37 06/04/2024 Food and Beverage Undisputed 01/23/2026 1114612457 CMS
GlaxoSmithKline, LLC. $20.06 02/08/2024 Food and Beverage Undisputed 01/23/2026 1116624691 CMS
GlaxoSmithKline, LLC. $16.61 02/26/2024 Food and Beverage Undisputed 01/23/2026 1116659295 CMS
GlaxoSmithKline, LLC. $15.97 03/28/2024 Food and Beverage Undisputed 01/23/2026 1116323146 CMS
GlaxoSmithKline, LLC. $19.11 08/21/2024 Food and Beverage Undisputed 01/23/2026 1116573602 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $22.34 02/18/2024 Food and Beverage Undisputed 01/23/2026 1143204979 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $20.29 04/15/2024 Food and Beverage Undisputed 01/23/2026 1143204983 CMS
Lilly USA, LLC $16.36 01/04/2024 Food and Beverage Undisputed 01/23/2026 1135169780 CMS
Lilly USA, LLC $19.93 01/09/2024 Food and Beverage Undisputed 01/23/2026 1135180243 CMS
Lilly USA, LLC $17.62 02/12/2024 Food and Beverage Undisputed 01/23/2026 1135177091 CMS
Lilly USA, LLC $13.01 02/14/2024 Food and Beverage Undisputed 01/23/2026 1135169328 CMS
Lilly USA, LLC $17.07 03/05/2024 Food and Beverage Undisputed 01/23/2026 1135199304 CMS
Lilly USA, LLC $16.69 03/20/2024 Food and Beverage Undisputed 01/23/2026 1135199308 CMS
Lilly USA, LLC $18.66 05/09/2024 Food and Beverage Undisputed 01/23/2026 1135199306 CMS
Lilly USA, LLC $14.55 06/03/2024 Food and Beverage Undisputed 01/23/2026 1135169330 CMS
Merck Sharp & Dohme LLC $28.33 04/09/2024 Food and Beverage Undisputed 01/23/2026 1141609605 CMS
Mylan Specialty L.P. $19.31 06/19/2024 Food and Beverage Undisputed 01/23/2026 1147288932 CMS
Novartis Pharmaceuticals Corporation $21.50 05/30/2024 Food and Beverage Undisputed 01/23/2026 1086683893 CMS
Novo Nordisk Inc $23.11 01/17/2024 Food and Beverage Undisputed 01/23/2026 1096769954 CMS
Novo Nordisk Inc $15.58 01/18/2024 Food and Beverage Undisputed 01/23/2026 1097048230 CMS
Novo Nordisk Inc $16.33 02/15/2024 Food and Beverage Undisputed 01/23/2026 1097568187 CMS
Novo Nordisk Inc $13.68 05/21/2024 Food and Beverage Undisputed 01/23/2026 1096839623 CMS
PFIZER INC. $20.42 01/09/2024 Food and Beverage Undisputed 01/23/2026 1131109657 CMS
PFIZER INC. $22.92 01/24/2024 Food and Beverage Undisputed 01/23/2026 1130970227 CMS
PFIZER INC. $18.53 02/20/2024 Food and Beverage Undisputed 01/23/2026 1131118881 CMS
PFIZER INC. $14.78 03/12/2024 Food and Beverage Undisputed 01/23/2026 1131034698 CMS
PFIZER INC. $21.26 04/02/2024 Food and Beverage Undisputed 01/23/2026 1131340332 CMS
PFIZER INC. $15.03 05/02/2024 Food and Beverage Undisputed 01/23/2026 1131435263 CMS
PFIZER INC. $11.28 05/07/2024 Food and Beverage Undisputed 01/23/2026 1131473152 CMS
PFIZER INC. $27.49 05/21/2024 Food and Beverage Undisputed 01/23/2026 1131440236 CMS
PFIZER INC. $21.48 05/29/2024 Food and Beverage Undisputed 01/23/2026 1131508734 CMS
Phathom Pharmaceuticals, Inc. $16.23 03/25/2024 Food and Beverage Undisputed 01/23/2026 1151047930 CMS
SHIELD THERAPEUTICS INC $14.07 03/07/2024 Food and Beverage Undisputed 01/23/2026 1150122923 CMS
SHIELD THERAPEUTICS INC $14.09 06/13/2024 Food and Beverage Undisputed 01/23/2026 1150134673 CMS
Sumitomo Pharma America, Inc. $16.27 04/16/2024 Food and Beverage Undisputed 01/23/2026 1148836847 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.