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

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. 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 ↗

Covered recipient · General Payments record

ELMER Y CHANG

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1912083353
CMS profile
132083
Location
MISSION VIEJO, CA

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.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$4,414.18

165 records · 0 disputed

“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.
  • Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,414.18 165

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
ABBVIE INC. $1,080.07 46
Janssen Biotech, Inc. $852.75 22
PFIZER INC. $355.65 13
Madrigal Pharmaceuticals $340.37 8
Salix Pharmaceuticals, a division of Bausch Health US, LLC $337.40 15
Takeda Pharmaceuticals U.S.A., Inc. $201.87 15
Lilly USA, LLC $158.75 6
GENZYME CORPORATION $152.55 5
Ardelyx, Inc. $132.56 5
Phathom Pharmaceuticals, Inc. $130.91 6
Regeneron Healthcare Solutions, Inc. $97.96 3
Braintree Laboratories, Inc. $91.68 3
CapsoVision, Inc. $88.91 1
VIVUS LLC $87.66 4
Gilead Sciences, Inc. $74.88 3
IRONWOOD PHARMACEUTICALS, INC $52.38 2
Sandoz Inc. $36.84 1
Celltrion USA Inc. $35.37 2
Ipsen Biopharmaceuticals, Inc $33.19 1
QOL Medical, LLC $28.13 2
Biocon Biologics Inc $27.34 1
INTERCEPT PHARMACEUTICALS, INC. $16.96 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,521.55 74
PY2020 $245.93 15
PY2021 $124.99 1
PY2022 $2,732.90 117
PY2023 $3,305.77 156
PY2024 $4,328.38 173
PY2025 $4,414.18 165

Payment records · PY2025 (165)

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

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $19.02 12/19/2025 Food and Beverage No dispute reported 06/30/2026 1201631598 CMS
ABBVIE INC. $32.86 12/18/2025 Food and Beverage No dispute reported 06/30/2026 1201631596 CMS
PFIZER INC. $29.23 12/18/2025 Food and Beverage No dispute reported 06/30/2026 1229378966 CMS
Ardelyx, Inc. $27.21 12/15/2025 Food and Beverage No dispute reported 06/30/2026 1247839972 CMS
ABBVIE INC. $22.61 12/11/2025 Food and Beverage No dispute reported 06/30/2026 1201631592 CMS
ABBVIE INC. $20.16 12/11/2025 Food and Beverage No dispute reported 06/30/2026 1201631594 CMS
Madrigal Pharmaceuticals $44.46 12/10/2025 Food and Beverage No dispute reported 06/30/2026 1248245387 CMS
ABBVIE INC. $15.90 12/09/2025 Food and Beverage No dispute reported 06/30/2026 1201631590 CMS
PFIZER INC. $27.54 12/02/2025 Food and Beverage No dispute reported 06/30/2026 1229896213 CMS
Janssen Biotech, Inc. $30.31 12/01/2025 Food and Beverage No dispute reported 06/30/2026 1174704772 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $21.73 12/01/2025 Food and Beverage No dispute reported 06/30/2026 1231874560 CMS
Ipsen Biopharmaceuticals, Inc $33.19 11/25/2025 Food and Beverage No dispute reported 06/30/2026 1208823698 CMS
Phathom Pharmaceuticals, Inc. $38.67 11/24/2025 Food and Beverage No dispute reported 06/30/2026 1219251037 CMS
ABBVIE INC. $20.55 11/20/2025 Food and Beverage No dispute reported 06/30/2026 1201631588 CMS
Madrigal Pharmaceuticals $48.38 11/18/2025 Food and Beverage No dispute reported 06/30/2026 1248245383 CMS
PFIZER INC. $22.57 11/17/2025 Food and Beverage No dispute reported 06/30/2026 1229387243 CMS
ABBVIE INC. $33.96 11/14/2025 Food and Beverage No dispute reported 06/30/2026 1201631586 CMS
Janssen Biotech, Inc. $32.38 11/10/2025 Food and Beverage No dispute reported 06/30/2026 1174699747 CMS
Janssen Biotech, Inc. $120.25 11/05/2025 Food and Beverage No dispute reported 06/30/2026 1174703034 CMS
QOL Medical, LLC $14.39 11/05/2025 Food and Beverage No dispute reported 06/30/2026 1185025562 CMS
Ardelyx, Inc. $30.68 11/04/2025 Food and Beverage No dispute reported 06/30/2026 1247839970 CMS
ABBVIE INC. $24.25 11/03/2025 Food and Beverage No dispute reported 06/30/2026 1201631584 CMS
PFIZER INC. $29.23 10/30/2025 Food and Beverage No dispute reported 06/30/2026 1229846423 CMS
ABBVIE INC. $20.55 10/28/2025 Food and Beverage No dispute reported 06/30/2026 1201631582 CMS
ABBVIE INC. $15.49 10/24/2025 Food and Beverage No dispute reported 06/30/2026 1201631580 CMS
Gilead Sciences, Inc. $26.58 10/23/2025 Food and Beverage No dispute reported 06/30/2026 1234461444 CMS
QOL Medical, LLC $13.74 10/22/2025 Food and Beverage No dispute reported 06/30/2026 1185025518 CMS
Phathom Pharmaceuticals, Inc. $15.52 10/21/2025 Food and Beverage No dispute reported 06/30/2026 1219251039 CMS
Janssen Biotech, Inc. $28.24 10/16/2025 Food and Beverage No dispute reported 06/30/2026 1174702381 CMS
ABBVIE INC. $32.61 10/15/2025 Food and Beverage No dispute reported 06/30/2026 1201631578 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.04 10/09/2025 Food and Beverage No dispute reported 06/30/2026 1223796884 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.65 10/09/2025 Food and Beverage No dispute reported 06/30/2026 1223837690 CMS
ABBVIE INC. $21.34 10/07/2025 Food and Beverage No dispute reported 06/30/2026 1201631576 CMS
Janssen Biotech, Inc. $117.16 10/06/2025 Food and Beverage No dispute reported 06/30/2026 1174700817 CMS
ABBVIE INC. $19.43 09/30/2025 Food and Beverage No dispute reported 06/30/2026 1201631574 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.04 09/29/2025 Food and Beverage No dispute reported 06/30/2026 1231874555 CMS
PFIZER INC. $29.23 09/25/2025 Food and Beverage No dispute reported 06/30/2026 1229234697 CMS
ABBVIE INC. $31.52 09/19/2025 Food and Beverage No dispute reported 06/30/2026 1201631572 CMS
ABBVIE INC. $31.23 09/15/2025 Food and Beverage No dispute reported 06/30/2026 1201631570 CMS
Janssen Biotech, Inc. $31.94 09/09/2025 Food and Beverage No dispute reported 06/30/2026 1174703533 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.99 09/08/2025 Food and Beverage No dispute reported 06/30/2026 1231874543 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.01 09/08/2025 Food and Beverage No dispute reported 06/30/2026 1223857466 CMS
VIVUS LLC $22.93 09/04/2025 Food and Beverage No dispute reported 06/30/2026 1188050771 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.56 09/02/2025 Food and Beverage No dispute reported 06/30/2026 1231874551 CMS
ABBVIE INC. $11.75 08/26/2025 Food and Beverage No dispute reported 06/30/2026 1201631568 CMS
GENZYME CORPORATION $36.05 08/25/2025 Food and Beverage No dispute reported 06/30/2026 1233303906 CMS
Janssen Biotech, Inc. $26.52 08/21/2025 Food and Beverage No dispute reported 06/30/2026 1174704558 CMS
Phathom Pharmaceuticals, Inc. $24.35 08/19/2025 Food and Beverage No dispute reported 06/30/2026 1219251041 CMS
PFIZER INC. $23.38 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1231678231 CMS
Janssen Biotech, Inc. $22.63 08/12/2025 Food and Beverage No dispute reported 06/30/2026 1174703105 CMS
ABBVIE INC. $24.37 08/11/2025 Food and Beverage No dispute reported 06/30/2026 1201631566 CMS
ABBVIE INC. $11.13 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1201631564 CMS
Janssen Biotech, Inc. $29.58 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1174702505 CMS
ABBVIE INC. $4.94 08/02/2025 Food and Beverage No dispute reported 06/30/2026 1201631562 CMS
VIVUS LLC $19.81 07/29/2025 Food and Beverage No dispute reported 06/30/2026 1188050769 CMS
ABBVIE INC. $16.80 07/28/2025 Food and Beverage No dispute reported 06/30/2026 1201631560 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.70 07/28/2025 Food and Beverage No dispute reported 06/30/2026 1231874539 CMS
ABBVIE INC. $16.56 07/24/2025 Food and Beverage No dispute reported 06/30/2026 1201631558 CMS
Regeneron Healthcare Solutions, Inc. $33.46 07/23/2025 Food and Beverage No dispute reported 06/30/2026 1212886664 CMS
ABBVIE INC. $27.46 07/22/2025 Food and Beverage No dispute reported 06/30/2026 1201631556 CMS
ABBVIE INC. $12.14 07/18/2025 Food and Beverage No dispute reported 06/30/2026 1201631554 CMS
Celltrion USA Inc. $20.54 07/16/2025 Food and Beverage No dispute reported 06/30/2026 1250819779 CMS
ABBVIE INC. $22.16 07/15/2025 Food and Beverage No dispute reported 06/30/2026 1201631552 CMS
PFIZER INC. $26.40 07/15/2025 Food and Beverage No dispute reported 06/30/2026 1228934870 CMS
Celltrion USA Inc. $14.83 07/14/2025 Food and Beverage No dispute reported 06/30/2026 1250819777 CMS
Madrigal Pharmaceuticals $38.43 07/11/2025 Food and Beverage No dispute reported 06/30/2026 1248245379 CMS
Regeneron Healthcare Solutions, Inc. $32.42 07/09/2025 Food and Beverage No dispute reported 06/30/2026 1212886662 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $21.29 07/09/2025 Food and Beverage No dispute reported 06/30/2026 1231874534 CMS
Ardelyx, Inc. $21.32 07/08/2025 Food and Beverage No dispute reported 06/30/2026 1247839968 CMS
ABBVIE INC. $31.83 07/01/2025 Food and Beverage No dispute reported 06/30/2026 1201631550 CMS
ABBVIE INC. $16.73 06/30/2025 Food and Beverage No dispute reported 06/30/2026 1201631548 CMS
Madrigal Pharmaceuticals $38.75 06/27/2025 Food and Beverage No dispute reported 06/30/2026 1248245375 CMS
Braintree Laboratories, Inc. $22.31 06/26/2025 Food and Beverage No dispute reported 06/30/2026 1173776594 CMS
PFIZER INC. $29.23 06/25/2025 Food and Beverage No dispute reported 06/30/2026 1228931031 CMS
Gilead Sciences, Inc. $25.32 06/19/2025 Food and Beverage No dispute reported 06/30/2026 1234471649 CMS
Sandoz Inc. $36.84 06/18/2025 Food and Beverage No dispute reported 06/30/2026 1181967199 CMS
Janssen Biotech, Inc. $18.13 06/17/2025 Food and Beverage No dispute reported 06/30/2026 1174702705 CMS
ABBVIE INC. $27.87 06/16/2025 Food and Beverage No dispute reported 06/30/2026 1201631546 CMS
Lilly USA, LLC $28.20 06/13/2025 Food and Beverage No dispute reported 06/30/2026 1186559810 CMS
Lilly USA, LLC $4.46 06/13/2025 Food and Beverage No dispute reported 06/30/2026 1186629563 CMS
ABBVIE INC. $15.68 06/12/2025 Food and Beverage No dispute reported 06/30/2026 1201631544 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.37 06/10/2025 Food and Beverage No dispute reported 06/30/2026 1231874528 CMS
Braintree Laboratories, Inc. $35.40 06/09/2025 Food and Beverage No dispute reported 06/30/2026 1173776592 CMS
VIVUS LLC $21.60 06/06/2025 Food and Beverage No dispute reported 06/30/2026 1188050767 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $23.82 06/03/2025 Food and Beverage No dispute reported 06/30/2026 1231874515 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.85 06/03/2025 Food and Beverage No dispute reported 06/30/2026 1231874520 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $5.15 06/03/2025 Food and Beverage No dispute reported 06/30/2026 1231874525 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.02 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1223896454 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.70 05/30/2025 Food and Beverage No dispute reported 06/30/2026 1223838147 CMS
Janssen Biotech, Inc. $26.51 05/29/2025 Food and Beverage No dispute reported 06/30/2026 1174700065 CMS
ABBVIE INC. $17.28 05/28/2025 Food and Beverage No dispute reported 06/30/2026 1201631542 CMS
ABBVIE INC. $34.67 05/27/2025 Food and Beverage No dispute reported 06/30/2026 1201631540 CMS
PFIZER INC. $29.23 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1228873515 CMS
ABBVIE INC. $16.57 05/20/2025 Food and Beverage No dispute reported 06/30/2026 1201631538 CMS
CapsoVision, Inc. $88.91 05/20/2025 Food and Beverage No dispute reported 06/30/2026 1234946988 CMS
GENZYME CORPORATION $29.65 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1233303862 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.44 05/14/2025 Food and Beverage No dispute reported 06/30/2026 1231874510 CMS
ABBVIE INC. $16.15 05/13/2025 Food and Beverage No dispute reported 06/30/2026 1201631536 CMS
Janssen Biotech, Inc. $132.27 05/12/2025 Food and Beverage No dispute reported 06/30/2026 1174704099 CMS
Takeda Pharmaceuticals U.S.A., Inc. $15.44 05/09/2025 Food and Beverage No dispute reported 06/30/2026 1223821932 CMS
Janssen Biotech, Inc. $20.69 05/08/2025 Food and Beverage No dispute reported 06/30/2026 1174702770 CMS
Janssen Biotech, Inc. $22.30 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1174703831 CMS
Lilly USA, LLC $32.52 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1186573954 CMS
Madrigal Pharmaceuticals $44.27 05/02/2025 Food and Beverage No dispute reported 06/30/2026 1248245372 CMS
Madrigal Pharmaceuticals $42.01 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1248245367 CMS
ABBVIE INC. $24.55 04/29/2025 Food and Beverage No dispute reported 06/30/2026 1201631534 CMS
ABBVIE INC. $23.23 04/24/2025 Food and Beverage No dispute reported 06/30/2026 1201631532 CMS
PFIZER INC. $24.80 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1231242930 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.29 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1223797436 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.27 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1223842859 CMS
Janssen Biotech, Inc. $22.98 04/22/2025 Food and Beverage No dispute reported 06/30/2026 1174701461 CMS
Janssen Biotech, Inc. $32.31 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1174701540 CMS
ABBVIE INC. $8.56 04/16/2025 Food and Beverage No dispute reported 06/30/2026 1201631530 CMS
Phathom Pharmaceuticals, Inc. $14.47 04/16/2025 Food and Beverage No dispute reported 06/30/2026 1219386545 CMS
Janssen Biotech, Inc. $23.02 04/14/2025 Food and Beverage No dispute reported 06/30/2026 1174702846 CMS
Lilly USA, LLC $30.12 04/11/2025 Food and Beverage No dispute reported 06/30/2026 1186591766 CMS
VIVUS LLC $23.32 04/10/2025 Food and Beverage No dispute reported 06/30/2026 1188050765 CMS
GENZYME CORPORATION $25.96 04/09/2025 Food and Beverage No dispute reported 06/30/2026 1233303854 CMS
Intercept Pharmaceuticals, Inc. $16.96 04/09/2025 Food and Beverage No dispute reported 06/30/2026 1249870894 CMS
Ardelyx, Inc. $26.95 04/08/2025 Food and Beverage No dispute reported 06/30/2026 1247839966 CMS
ABBVIE INC. $16.68 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1201631528 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.68 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1231874497 CMS
Biocon Biologics Inc $27.34 04/04/2025 Food and Beverage No dispute reported 06/30/2026 1254657737 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.12 04/02/2025 Food and Beverage No dispute reported 06/30/2026 1231874502 CMS
ABBVIE INC. $14.34 03/31/2025 Food and Beverage No dispute reported 06/30/2026 1201631524 CMS
ABBVIE INC. $24.89 03/31/2025 Food and Beverage No dispute reported 06/30/2026 1201631526 CMS
Regeneron Healthcare Solutions, Inc. $32.08 03/28/2025 Food and Beverage No dispute reported 06/30/2026 1212886660 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.53 03/27/2025 Food and Beverage No dispute reported 06/30/2026 1223844963 CMS
Gilead Sciences, Inc. $22.98 03/26/2025 Food and Beverage No dispute reported 06/30/2026 1234494646 CMS
Janssen Biotech, Inc. $32.04 03/25/2025 Food and Beverage No dispute reported 06/30/2026 1174699699 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.62 03/21/2025 Food and Beverage No dispute reported 06/30/2026 1231874493 CMS
ABBVIE INC. $21.42 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1201631522 CMS
PFIZER INC. $28.22 03/19/2025 Food and Beverage No dispute reported 06/30/2026 1231397604 CMS
ABBVIE INC. $16.06 03/04/2025 Food and Beverage No dispute reported 06/30/2026 1201631520 CMS
ABBVIE INC. $26.14 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1201631518 CMS
Lilly USA, LLC $31.21 02/24/2025 Food and Beverage No dispute reported 06/30/2026 1186605548 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.44 02/21/2025 Food and Beverage No dispute reported 06/30/2026 1235959230 CMS
PFIZER INC. $28.22 02/20/2025 Food and Beverage No dispute reported 06/30/2026 1229647649 CMS
Ardelyx, Inc. $26.40 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1247839964 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.04 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1231874488 CMS
ABBVIE INC. $122.72 02/18/2025 Food and Beverage No dispute reported 06/30/2026 1201631516 CMS
Janssen Biotech, Inc. $22.30 02/18/2025 Food and Beverage No dispute reported 06/30/2026 1174704443 CMS
ABBVIE INC. $21.62 02/17/2025 Food and Beverage No dispute reported 06/30/2026 1201631514 CMS
Madrigal Pharmaceuticals $37.75 02/14/2025 Food and Beverage No dispute reported 06/30/2026 1248245363 CMS
Janssen Biotech, Inc. $26.01 02/13/2025 Food and Beverage No dispute reported 06/30/2026 1174700076 CMS
Janssen Biotech, Inc. $3.29 02/13/2025 Food and Beverage No dispute reported 06/30/2026 1174700704 CMS
GENZYME CORPORATION $35.50 02/10/2025 Food and Beverage No dispute reported 06/30/2026 1233303816 CMS
Phathom Pharmaceuticals, Inc. $15.10 02/07/2025 Food and Beverage No dispute reported 06/30/2026 1219386551 CMS
ABBVIE INC. $24.92 02/04/2025 Food and Beverage No dispute reported 06/30/2026 1201631512 CMS
Lilly USA, LLC $32.24 02/03/2025 Food and Beverage No dispute reported 06/30/2026 1186644125 CMS
Janssen Biotech, Inc. $31.89 01/29/2025 Food and Beverage No dispute reported 06/30/2026 1174703899 CMS
Braintree Laboratories, Inc. $33.97 01/28/2025 Food and Beverage No dispute reported 06/30/2026 1173776590 CMS
Madrigal Pharmaceuticals $46.32 01/24/2025 Food and Beverage No dispute reported 06/30/2026 1248245359 CMS
ABBVIE INC. $20.50 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1201631510 CMS
Takeda Pharmaceuticals U.S.A., Inc. $15.16 01/22/2025 Food and Beverage No dispute reported 06/30/2026 1223820251 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.03 01/17/2025 Food and Beverage No dispute reported 06/30/2026 1223796860 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.84 01/17/2025 Food and Beverage No dispute reported 06/30/2026 1223831678 CMS
IRONWOOD PHARMACEUTICALS, INC $26.65 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1227654230 CMS
IRONWOOD PHARMACEUTICALS, INC $25.73 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1227656908 CMS
Phathom Pharmaceuticals, Inc. $22.80 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1219386549 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.61 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1223798027 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.84 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1223864729 CMS
GENZYME CORPORATION $25.39 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1233303804 CMS
ABBVIE INC. $28.87 01/06/2025 Food and Beverage No dispute reported 06/30/2026 1201631508 CMS
PFIZER INC. $28.37 01/02/2025 Food and Beverage No dispute reported 06/30/2026 1231110918 CMS

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
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.

Permalink https://industrypayments.org/provider/npi-1912083353

Plain
ELMER Y CHANG, NPI 1912083353. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1912083353.
APA 7
IndustryPayments. (2026). ELMER Y CHANG, NPI 1912083353 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1912083353
Bluebook
ELMER Y CHANG, NPI 1912083353, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1912083353.

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