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

MICHAEL H MARK

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1821082892
CMS profile
472317
Location
MILLSBORO, DE

General Payments · PY2020–2023

$2,539.57

  • Reported across 186 records
  • CMS publication 2026-01-23

Latest program year · PY2023

$297.21

14 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

PY2023 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $297.21 14

By paying entity

PY2023 · sorted by reported total

Paying entityAmountRecords
ABBVIE INC. $76.91 5
EMD Serono, Inc. $67.66 2
Teva Pharmaceuticals USA, Inc. $49.33 2
Horizon Pharma plc $43.94 2
Biogen, Inc. $22.28 1
EISAI INC. $19.94 1
Alexion Pharmaceuticals, Inc. $17.15 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2020 $285.96 17
PY2021 $1,127.59 92
PY2022 $828.81 63
PY2023 $297.21 14

Payment records · PY2023 (14)

Sorted by paying entity, then date · as published by CMS

Program year 2023 202020212022 Record-level detail is published for PY2023; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $15.12 03/07/2023 Food and Beverage Undisputed 01/23/2026 997842761 CMS
ABBVIE INC. $17.96 03/22/2023 Food and Beverage Undisputed 01/23/2026 997842763 CMS
ABBVIE INC. $17.05 05/11/2023 Food and Beverage Undisputed 01/23/2026 997842765 CMS
ABBVIE INC. $14.04 05/30/2023 Food and Beverage Undisputed 01/23/2026 997842767 CMS
ABBVIE INC. $12.74 06/29/2023 Food and Beverage Undisputed 01/23/2026 997842769 CMS
Alexion Pharmaceuticals, Inc. $17.15 01/19/2023 Food and Beverage Undisputed 01/23/2026 1017058459 CMS
Biogen, Inc. $22.28 01/04/2023 Food and Beverage Undisputed 01/23/2026 1012163897 CMS
Eisai Inc. $19.94 04/06/2023 Food and Beverage Undisputed 01/23/2026 1023323097 CMS
EMD Serono, Inc. $30.98 05/04/2023 Food and Beverage Undisputed 01/23/2026 1032364925 CMS
EMD Serono, Inc. $36.68 07/11/2023 Food and Beverage Undisputed 01/23/2026 1032545025 CMS
Horizon Therapeutics plc $29.97 02/07/2023 Food and Beverage Undisputed 01/23/2026 987043061 CMS
Horizon Therapeutics plc $13.97 04/20/2023 Food and Beverage Undisputed 01/23/2026 987043063 CMS
Teva Pharmaceuticals USA, Inc. $20.26 04/05/2023 Food and Beverage Undisputed 01/23/2026 1056801673 CMS
Teva Pharmaceuticals USA, Inc. $29.07 04/26/2023 Food and Beverage Undisputed 01/23/2026 1056801675 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
2020, 2021, 2022, 2023
Source files
Dataset page · Bulk file · PY2020 , PY2021 , PY2022 , PY2023
Generated from
OP_DTL_GNRL_PGYR2023_P01232026_01102026.csv

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