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

ESTEPHAN NICHOLAS ZAYAT

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1558361261
CMS profile
24729
Location
WICHITA, KS

General Payments · PY2018–2024

$9,993.07

  • Reported across 276 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,377.00

36 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 $1,377.00 36

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,633.35 62
PY2019 $3,587.77 41
PY2020 $269.13 11
PY2021 $862.85 43
PY2022 $1,114.70 45
PY2023 $1,148.27 38
PY2024 $1,377.00 36

Payment records · PY2024 (36)

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. $13.56 03/09/2024 Food and Beverage Undisputed 01/23/2026 1106391840 CMS
ABBVIE INC. $15.76 07/09/2024 Food and Beverage Undisputed 01/23/2026 1106391842 CMS
Alnylam Pharmaceuticals Inc. $20.86 10/11/2024 Food and Beverage Undisputed 01/23/2026 1125847212 CMS
Boston Scientific Corporation $126.48 03/14/2024 Food and Beverage Undisputed 01/23/2026 1092579961 CMS
Celltrion USA Inc. $15.67 08/07/2024 Food and Beverage Undisputed 01/23/2026 1075860247 CMS
Celltrion USA Inc. $14.90 10/18/2024 Food and Beverage Undisputed 01/23/2026 1075860249 CMS
GENZYME CORPORATION $16.82 01/18/2024 Food and Beverage Undisputed 01/23/2026 1139788327 CMS
GENZYME CORPORATION $19.41 02/26/2024 Food and Beverage Undisputed 01/23/2026 1139788333 CMS
GENZYME CORPORATION $19.66 04/29/2024 Food and Beverage Undisputed 01/23/2026 1139788363 CMS
GENZYME CORPORATION $26.38 08/26/2024 Food and Beverage Undisputed 01/23/2026 1139788397 CMS
Gilead Sciences, Inc. $14.01 08/19/2024 Food and Beverage Undisputed 01/23/2026 1133784545 CMS
Gilead Sciences, Inc. $132.15 10/03/2024 Food and Beverage Undisputed 01/23/2026 1133784547 CMS
Gilead Sciences, Inc. $14.03 11/13/2024 Food and Beverage Undisputed 01/23/2026 1133784549 CMS
Intercept Pharmaceuticals, Inc. $118.81 03/12/2024 Food and Beverage Undisputed 01/23/2026 1113633474 CMS
Intercept Pharmaceuticals, Inc. $14.05 07/19/2024 Food and Beverage Undisputed 01/23/2026 1113633476 CMS
Ipsen Biopharmaceuticals, Inc $16.14 06/25/2024 Food and Beverage Undisputed 01/23/2026 1091982274 CMS
Ipsen Biopharmaceuticals, Inc $149.99 11/13/2024 Food and Beverage Undisputed 01/23/2026 1091982276 CMS
Janssen Biotech, Inc. $8.44 02/27/2024 Food and Beverage Undisputed 01/23/2026 1078643257 CMS
Janssen Biotech, Inc. $16.13 03/04/2024 Food and Beverage Undisputed 01/23/2026 1078642248 CMS
Janssen Biotech, Inc. $2.04 03/04/2024 Food and Beverage Undisputed 01/23/2026 1078642393 CMS
Janssen Biotech, Inc. $2.12 04/15/2024 Food and Beverage Undisputed 01/23/2026 1078641018 CMS
Janssen Biotech, Inc. $18.82 04/15/2024 Food and Beverage Undisputed 01/23/2026 1078643053 CMS
Janssen Biotech, Inc. $7.74 08/06/2024 Food and Beverage Undisputed 01/23/2026 1078642073 CMS
Janssen Biotech, Inc. $98.46 09/25/2024 Food and Beverage Undisputed 01/23/2026 1078642235 CMS
Lilly USA, LLC $19.01 08/30/2024 Food and Beverage Undisputed 01/23/2026 1136173168 CMS
Lilly USA, LLC $22.31 11/01/2024 Food and Beverage Undisputed 01/23/2026 1136171806 CMS
Madrigal Pharmaceuticals $22.49 12/20/2024 Food and Beverage Undisputed 01/23/2026 1144186273 CMS
Medtronic, Inc. $123.56 03/26/2024 Food and Beverage Undisputed 01/23/2026 1119373804 CMS
Medtronic, Inc. $16.08 12/23/2024 Food and Beverage Undisputed 01/23/2026 1119373806 CMS
Micro-tech Endoscopy USA, Inc. $20.16 10/08/2024 Food and Beverage Undisputed 01/23/2026 1088810786 CMS
PFIZER INC. $65.54 10/28/2024 Food and Beverage Undisputed 01/23/2026 1130885944 CMS
Phathom Pharmaceuticals, Inc. $121.13 04/08/2024 Food and Beverage Undisputed 01/23/2026 1151142685 CMS
Phathom Pharmaceuticals, Inc. $12.90 09/06/2024 Food and Beverage Undisputed 01/23/2026 1151142687 CMS
Regeneron Healthcare Solutions, Inc. $15.59 09/13/2024 Food and Beverage Undisputed 01/23/2026 1114261170 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.53 05/29/2024 Food and Beverage Undisputed 01/23/2026 1137702476 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.27 07/29/2024 Food and Beverage Undisputed 01/23/2026 1137702478 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

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