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

OLEG Y CHERNYSHEV

Allopathic & Osteopathic Physicians Psychiatry & Neurology Sleep Medicine

NPI
1811125289
CMS profile
756859
Location
SHREVEPORT, LA

General Payments · PY2018–2024

$13,283.28

  • Reported across 488 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,533.90

63 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 $1,347.31 60
Education $186.59 3

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,984.56 62
PY2019 $1,872.40 83
PY2020 $773.64 36
PY2021 $3,726.47 89
PY2022 $1,833.10 91
PY2023 $1,559.21 64
PY2024 $1,533.90 63

Payment records · PY2024 (63)

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. $16.19 01/29/2024 Food and Beverage Undisputed 01/23/2026 1103456614 CMS
ABBVIE INC. $15.09 03/12/2024 Food and Beverage Undisputed 01/23/2026 1103456616 CMS
ABBVIE INC. $20.06 05/13/2024 Food and Beverage Undisputed 01/23/2026 1103456618 CMS
ABBVIE INC. $15.97 05/16/2024 Food and Beverage Undisputed 01/23/2026 1103456620 CMS
ABBVIE INC. $12.99 06/11/2024 Food and Beverage Undisputed 01/23/2026 1103456622 CMS
ABBVIE INC. $17.17 07/15/2024 Food and Beverage Undisputed 01/23/2026 1103456624 CMS
ABBVIE INC. $17.06 07/25/2024 Food and Beverage Undisputed 01/23/2026 1103456626 CMS
ABBVIE INC. $10.07 08/14/2024 Food and Beverage Undisputed 01/23/2026 1103456628 CMS
ABBVIE INC. $16.46 09/16/2024 Food and Beverage Undisputed 01/23/2026 1103456630 CMS
ABBVIE INC. $7.55 11/04/2024 Food and Beverage Undisputed 01/23/2026 1103456632 CMS
ABBVIE INC. $15.96 11/14/2024 Food and Beverage Undisputed 01/23/2026 1103456634 CMS
ABBVIE INC. $8.48 11/19/2024 Food and Beverage Undisputed 01/23/2026 1103456636 CMS
ABBVIE INC. $7.80 12/10/2024 Food and Beverage Undisputed 01/23/2026 1103456638 CMS
ABBVIE INC. $17.68 12/12/2024 Food and Beverage Undisputed 01/23/2026 1103456640 CMS
ACADIA Pharmaceuticals Inc $15.98 12/17/2024 Food and Beverage Undisputed 01/23/2026 1147966280 CMS
Alexion Pharmaceuticals, Inc. $22.08 04/16/2024 Food and Beverage Undisputed 01/23/2026 1094022296 CMS
Alexion Pharmaceuticals, Inc. $23.21 06/12/2024 Food and Beverage Undisputed 01/23/2026 1093930472 CMS
Alexion Pharmaceuticals, Inc. $22.46 06/27/2024 Food and Beverage Undisputed 01/23/2026 1094005799 CMS
ARGENX US, INC. $21.58 06/08/2024 Food and Beverage Undisputed 01/23/2026 1142107034 CMS
ARGENX US, INC. $13.25 11/25/2024 Food and Beverage Undisputed 01/23/2026 1142124329 CMS
ARGENX US, INC. $21.77 12/17/2024 Food and Beverage Undisputed 01/23/2026 1142125697 CMS
Eisai Inc. $18.22 12/05/2024 Food and Beverage Undisputed 01/23/2026 1110770901 CMS
EMD Serono, Inc. $22.22 02/13/2024 Food and Beverage Undisputed 01/23/2026 1120232666 CMS
EMD Serono, Inc. $28.51 03/25/2024 Food and Beverage Undisputed 01/23/2026 1120239404 CMS
EMD Serono, Inc. $29.59 07/22/2024 Food and Beverage Undisputed 01/23/2026 1120216982 CMS
EMD Serono, Inc. $29.59 10/14/2024 Food and Beverage Undisputed 01/23/2026 1120259890 CMS
EMD Serono, Inc. $17.78 12/02/2024 Food and Beverage Undisputed 01/23/2026 1120270470 CMS
Harmony Biosciences Llc $17.03 10/31/2024 Food and Beverage Undisputed 01/23/2026 1141474970 CMS
Harmony Biosciences Llc $8.96 12/04/2024 Food and Beverage Undisputed 01/23/2026 1141471604 CMS
HARMONY BIOSCIENCES LLC $20.46 01/24/2024 Food and Beverage Undisputed 01/23/2026 1126070984 CMS
HARMONY BIOSCIENCES LLC $20.16 03/13/2024 Food and Beverage Undisputed 01/23/2026 1126070986 CMS
HARMONY BIOSCIENCES LLC $45.10 03/27/2024 Education Undisputed 01/23/2026 1126070982 CMS
HARMONY BIOSCIENCES LLC $17.99 05/01/2024 Food and Beverage Undisputed 01/23/2026 1126070992 CMS
HARMONY BIOSCIENCES LLC $1.04 05/01/2024 Food and Beverage Undisputed 01/23/2026 1126070996 CMS
HARMONY BIOSCIENCES LLC $19.94 07/30/2024 Food and Beverage Undisputed 01/23/2026 1126070988 CMS
HARMONY BIOSCIENCES LLC $1.48 07/31/2024 Food and Beverage Undisputed 01/23/2026 1126070994 CMS
HARMONY BIOSCIENCES LLC $18.85 09/11/2024 Food and Beverage Undisputed 01/23/2026 1126070990 CMS
HARMONY BIOSCIENCES LLC $99.99 12/02/2024 Education Undisputed 01/23/2026 1126070980 CMS
Inspire Medical Systems, Inc. $139.31 03/28/2024 Food and Beverage Undisputed 01/23/2026 1148047534 CMS
Inspire Medical Systems, Inc. $30.08 06/25/2024 Food and Beverage Undisputed 01/23/2026 1148047536 CMS
Itamar Medical Inc $117.31 05/09/2024 Food and Beverage Undisputed 01/23/2026 1153392783 CMS
JAZZ PHARMACEUTICALS INC. $18.02 02/26/2024 Food and Beverage Undisputed 01/23/2026 1150233246 CMS
JAZZ PHARMACEUTICALS INC. $15.52 02/29/2024 Food and Beverage Undisputed 01/23/2026 1150233242 CMS
JAZZ PHARMACEUTICALS INC. $20.29 03/21/2024 Food and Beverage Undisputed 01/23/2026 1150233244 CMS
JAZZ PHARMACEUTICALS INC. $21.87 05/16/2024 Food and Beverage Undisputed 01/23/2026 1150233250 CMS
JAZZ PHARMACEUTICALS INC. $29.34 05/23/2024 Food and Beverage Undisputed 01/23/2026 1150233248 CMS
JAZZ PHARMACEUTICALS INC. $41.50 06/10/2024 Education Undisputed 01/23/2026 1150233256 CMS
JAZZ PHARMACEUTICALS INC. $19.22 06/12/2024 Food and Beverage Undisputed 01/23/2026 1150233252 CMS
JAZZ PHARMACEUTICALS INC. $24.83 08/01/2024 Food and Beverage Undisputed 01/23/2026 1150233254 CMS
Lundbeck LLC $22.75 01/09/2024 Food and Beverage Undisputed 01/23/2026 1145904637 CMS
Mallinckrodt Hospital Products Inc. $25.21 06/20/2024 Food and Beverage Undisputed 01/23/2026 1145057011 CMS
MITSUBISHI TANABE PHARMA AMERICA, INC. $17.39 08/05/2024 Food and Beverage Undisputed 01/23/2026 1144510732 CMS
MITSUBISHI TANABE PHARMA AMERICA, INC. $17.19 10/07/2024 Food and Beverage Undisputed 01/23/2026 1144510860 CMS
Neurelis, Inc. $38.29 10/03/2024 Food and Beverage Undisputed 01/23/2026 1145637476 CMS
Neurocrine Biosciences, Inc. $18.60 04/11/2024 Food and Beverage Undisputed 01/23/2026 1150863533 CMS
Novartis Pharmaceuticals Corporation $17.90 08/28/2024 Food and Beverage Undisputed 01/23/2026 1086747603 CMS
Novartis Pharmaceuticals Corporation $18.28 10/09/2024 Food and Beverage Undisputed 01/23/2026 1086747607 CMS
Novartis Pharmaceuticals Corporation $20.67 12/12/2024 Food and Beverage Undisputed 01/23/2026 1086747609 CMS
PFIZER INC. $16.53 12/18/2024 Food and Beverage Undisputed 01/23/2026 1131474074 CMS
UCB, Inc. $32.44 04/04/2024 Food and Beverage Undisputed 01/23/2026 1143178235 CMS
UCB, Inc. $16.26 04/18/2024 Food and Beverage Undisputed 01/23/2026 1143178237 CMS
UCB, Inc. $18.45 09/25/2024 Food and Beverage Undisputed 01/23/2026 1143178239 CMS
UCB, Inc. $20.88 10/10/2024 Food and Beverage Undisputed 01/23/2026 1143178241 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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