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

MARK E FESENMYER

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1992770390
CMS profile
362827
Location
MERRILLVILLE, IN

General Payments · PY2018–2024

$4,962.75

  • Reported across 279 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,125.37

56 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: Gastroenterology IN All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,125.37 56

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
ABBVIE INC. $355.23 18
Takeda Pharmaceuticals U.S.A., Inc. $173.21 9
Mallinckrodt Hospital Products Inc. $92.36 1
Phathom Pharmaceuticals, Inc. $88.50 5
Janssen Biotech, Inc. $86.47 5
Lilly USA, LLC $77.46 4
PFIZER INC. $48.46 3
Celgene Corporation $42.58 2
IRONWOOD PHARMACEUTICALS, INC $35.88 2
Ardelyx, Inc. $22.85 1
Gilead Sciences, Inc. $19.44 1
EVOKE PHARMA, INC. $18.37 1
QOL Medical, LLC $18.34 1
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.48 1
Braintree Laboratories, Inc. $14.50 1
AIMMUNE THERAPEUTICS, INC. $14.24 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $620.17 31
PY2019 $501.54 39
PY2020 $317.86 20
PY2021 $749.54 39
PY2022 $880.45 49
PY2023 $767.82 45
PY2024 $1,125.37 56

Payment records · PY2024 (56)

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
ABBVIE INC. $16.69 01/08/2024 Food and Beverage Undisputed 01/23/2026 1103724918 CMS
ABBVIE INC. $21.34 01/10/2024 Food and Beverage Undisputed 01/23/2026 1103724920 CMS
ABBVIE INC. $22.91 01/17/2024 Food and Beverage Undisputed 01/23/2026 1103724922 CMS
ABBVIE INC. $15.65 01/22/2024 Food and Beverage Undisputed 01/23/2026 1103724924 CMS
ABBVIE INC. $20.71 02/05/2024 Food and Beverage Undisputed 01/23/2026 1103724926 CMS
ABBVIE INC. $10.41 03/20/2024 Food and Beverage Undisputed 01/23/2026 1103724928 CMS
ABBVIE INC. $22.22 05/23/2024 Food and Beverage Undisputed 01/23/2026 1103724930 CMS
ABBVIE INC. $20.42 05/31/2024 Food and Beverage Undisputed 01/23/2026 1103724932 CMS
ABBVIE INC. $19.50 06/26/2024 Food and Beverage Undisputed 01/23/2026 1103724934 CMS
ABBVIE INC. $27.00 07/16/2024 Food and Beverage Undisputed 01/23/2026 1103724936 CMS
ABBVIE INC. $26.22 08/01/2024 Food and Beverage Undisputed 01/23/2026 1103724938 CMS
ABBVIE INC. $0.76 10/16/2024 Food and Beverage Undisputed 01/23/2026 1103724940 CMS
ABBVIE INC. $18.52 10/17/2024 Food and Beverage Undisputed 01/23/2026 1103724942 CMS
ABBVIE INC. $24.96 10/30/2024 Food and Beverage Undisputed 01/23/2026 1103724944 CMS
ABBVIE INC. $13.98 10/31/2024 Food and Beverage Undisputed 01/23/2026 1103724946 CMS
ABBVIE INC. $24.44 11/11/2024 Food and Beverage Undisputed 01/23/2026 1103724948 CMS
ABBVIE INC. $18.72 11/14/2024 Food and Beverage Undisputed 01/23/2026 1103724950 CMS
ABBVIE INC. $30.78 12/11/2024 Food and Beverage Undisputed 01/23/2026 1103724952 CMS
AIMMUNE THERAPEUTICS, INC. $14.24 10/03/2024 Food and Beverage Undisputed 01/23/2026 1146990916 CMS
Ardelyx, Inc. $22.85 08/08/2024 Food and Beverage Undisputed 01/23/2026 1146680305 CMS
Braintree Laboratories, Inc. $14.50 01/25/2024 Food and Beverage Undisputed 01/23/2026 1125514337 CMS
Celgene Corporation $19.56 02/08/2024 Food and Beverage Undisputed 01/23/2026 1101167484 CMS
Celgene Corporation $23.02 03/04/2024 Food and Beverage Undisputed 01/23/2026 1101167486 CMS
EVOKE PHARMA, INC. $18.37 11/13/2024 Food and Beverage Undisputed 01/23/2026 1127779629 CMS
Gilead Sciences, Inc. $19.44 09/03/2024 Food and Beverage Undisputed 01/23/2026 1133782794 CMS
IRONWOOD PHARMACEUTICALS, INC $18.71 03/11/2024 Food and Beverage Undisputed 01/23/2026 1153760094 CMS
IRONWOOD PHARMACEUTICALS, INC $17.17 04/15/2024 Food and Beverage Undisputed 01/23/2026 1153733408 CMS
Janssen Biotech, Inc. $19.20 01/08/2024 Food and Beverage Undisputed 01/23/2026 1078626495 CMS
Janssen Biotech, Inc. $16.54 02/26/2024 Food and Beverage Undisputed 01/23/2026 1078626885 CMS
Janssen Biotech, Inc. $19.62 05/02/2024 Food and Beverage Undisputed 01/23/2026 1078626565 CMS
Janssen Biotech, Inc. $15.78 05/08/2024 Food and Beverage Undisputed 01/23/2026 1078626399 CMS
Janssen Biotech, Inc. $15.33 05/31/2024 Food and Beverage Undisputed 01/23/2026 1078626966 CMS
Lilly USA, LLC $18.33 02/22/2024 Food and Beverage Undisputed 01/23/2026 1135167178 CMS
Lilly USA, LLC $20.09 07/11/2024 Food and Beverage Undisputed 01/23/2026 1135167180 CMS
Lilly USA, LLC $18.91 07/29/2024 Food and Beverage Undisputed 01/23/2026 1135167182 CMS
Lilly USA, LLC $20.13 08/19/2024 Food and Beverage Undisputed 01/23/2026 1135161243 CMS
Mallinckrodt Hospital Products Inc. $92.36 08/14/2024 Food and Beverage Undisputed 01/23/2026 1145071529 CMS
PFIZER INC. $14.36 04/01/2024 Food and Beverage Undisputed 01/23/2026 1131577748 CMS
PFIZER INC. $16.70 11/26/2024 Food and Beverage Undisputed 01/23/2026 1131145854 CMS
PFIZER INC. $17.40 12/10/2024 Food and Beverage Undisputed 01/23/2026 1131485552 CMS
Phathom Pharmaceuticals, Inc. $18.00 04/04/2024 Food and Beverage Undisputed 01/23/2026 1151060935 CMS
Phathom Pharmaceuticals, Inc. $18.28 05/03/2024 Food and Beverage Undisputed 01/23/2026 1151060937 CMS
Phathom Pharmaceuticals, Inc. $18.90 06/17/2024 Food and Beverage Undisputed 01/23/2026 1151060939 CMS
Phathom Pharmaceuticals, Inc. $13.37 06/27/2024 Food and Beverage Undisputed 01/23/2026 1151060941 CMS
Phathom Pharmaceuticals, Inc. $19.95 10/02/2024 Food and Beverage Undisputed 01/23/2026 1151060943 CMS
QOL Medical, LLC $18.34 07/10/2024 Food and Beverage Undisputed 01/23/2026 1147727460 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.48 05/30/2024 Food and Beverage Undisputed 01/23/2026 1153603441 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.21 01/11/2024 Food and Beverage Undisputed 01/23/2026 1137546718 CMS
Takeda Pharmaceuticals U.S.A., Inc. $14.57 02/07/2024 Food and Beverage Undisputed 01/23/2026 1137546722 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.03 03/11/2024 Food and Beverage Undisputed 01/23/2026 1137546726 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.63 04/15/2024 Food and Beverage Undisputed 01/23/2026 1137546730 CMS
Takeda Pharmaceuticals U.S.A., Inc. $21.14 04/29/2024 Food and Beverage Undisputed 01/23/2026 1137546734 CMS
Takeda Pharmaceuticals U.S.A., Inc. $19.93 06/24/2024 Food and Beverage Undisputed 01/23/2026 1137546738 CMS
Takeda Pharmaceuticals U.S.A., Inc. $15.15 07/09/2024 Food and Beverage Undisputed 01/23/2026 1137546742 CMS
Takeda Pharmaceuticals U.S.A., Inc. $19.11 08/12/2024 Food and Beverage Undisputed 01/23/2026 1137546746 CMS
Takeda Pharmaceuticals U.S.A., Inc. $26.44 12/04/2024 Food and Beverage Undisputed 01/23/2026 1137546750 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.