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 A WILLOUGHBY

Allopathic & Osteopathic Physicians Dermatology

NPI
1215931993
CMS profile
145478
Location
CHULA VISTA, CA

General Payments · PY2018–2024

$40,689.29

  • Reported across 257 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,226.31

60 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 $1,036.33 58
Education $189.98 2

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $561.02 31
PY2019 $903.68 44
PY2020 $303.49 16
PY2021 $709.70 35
PY2022 $36,222.01 34
PY2023 $763.08 37
PY2024 $1,226.31 60

Payment records · PY2024 (60)

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. $11.64 02/23/2024 Food and Beverage Undisputed 01/23/2026 1106343962 CMS
ABBVIE INC. $32.90 03/13/2024 Food and Beverage Undisputed 01/23/2026 1106343964 CMS
ABBVIE INC. $23.98 03/27/2024 Food and Beverage Undisputed 01/23/2026 1106343966 CMS
ABBVIE INC. $8.54 03/28/2024 Food and Beverage Undisputed 01/23/2026 1106343968 CMS
ABBVIE INC. $5.33 04/11/2024 Food and Beverage Undisputed 01/23/2026 1106343970 CMS
ABBVIE INC. $3.85 06/18/2024 Food and Beverage Undisputed 01/23/2026 1106343972 CMS
ABBVIE INC. $25.26 07/16/2024 Food and Beverage Undisputed 01/23/2026 1106343974 CMS
ABBVIE INC. $3.95 08/06/2024 Food and Beverage Undisputed 01/23/2026 1106343976 CMS
ABBVIE INC. $25.27 08/15/2024 Food and Beverage Undisputed 01/23/2026 1106343978 CMS
ABBVIE INC. $8.21 08/21/2024 Food and Beverage Undisputed 01/23/2026 1106343980 CMS
ABBVIE INC. $10.14 09/18/2024 Food and Beverage Undisputed 01/23/2026 1106343982 CMS
ABBVIE INC. $24.79 10/15/2024 Food and Beverage Undisputed 01/23/2026 1106343984 CMS
ABBVIE INC. $9.23 10/28/2024 Food and Beverage Undisputed 01/23/2026 1106343986 CMS
ABBVIE INC. $20.39 11/13/2024 Food and Beverage Undisputed 01/23/2026 1106343988 CMS
ABBVIE INC. $30.87 11/25/2024 Food and Beverage Undisputed 01/23/2026 1106343990 CMS
ABBVIE INC. $14.59 12/13/2024 Food and Beverage Undisputed 01/23/2026 1106343992 CMS
Almirall LLC $24.50 08/09/2024 Food and Beverage Undisputed 01/23/2026 1120639740 CMS
Almirall LLC $24.44 08/14/2024 Food and Beverage Undisputed 01/23/2026 1120639770 CMS
Amgen Inc. $23.83 01/23/2024 Food and Beverage Undisputed 01/23/2026 1117416535 CMS
Amgen Inc. $27.59 02/07/2024 Food and Beverage Undisputed 01/23/2026 1117416537 CMS
Amgen Inc. $6.89 04/23/2024 Food and Beverage Undisputed 01/23/2026 1117416539 CMS
Amgen Inc. $21.94 07/23/2024 Food and Beverage Undisputed 01/23/2026 1117416541 CMS
Amgen Inc. $9.25 08/19/2024 Food and Beverage Undisputed 01/23/2026 1117416543 CMS
Amgen Inc. $8.34 10/15/2024 Food and Beverage Undisputed 01/23/2026 1117416545 CMS
Amgen Inc. $9.99 10/21/2024 Food and Beverage Undisputed 01/23/2026 1117416547 CMS
Amgen Inc. $21.70 11/12/2024 Food and Beverage Undisputed 01/23/2026 1117416549 CMS
Amgen Inc. $21.70 12/05/2024 Food and Beverage Undisputed 01/23/2026 1117416551 CMS
Arcutis Biotherapeutics, Inc. $25.21 04/19/2024 Food and Beverage Undisputed 01/23/2026 1121062510 CMS
Biofrontera Inc. $12.63 05/22/2024 Food and Beverage Undisputed 01/23/2026 1095485126 CMS
Biofrontera Inc. $14.06 08/07/2024 Food and Beverage Undisputed 01/23/2026 1105924770 CMS
Biofrontera Inc. $11.34 09/25/2024 Food and Beverage Undisputed 01/23/2026 1107927039 CMS
Biofrontera Inc. $14.68 12/11/2024 Food and Beverage Undisputed 01/23/2026 1111024055 CMS
E.R. Squibb & Sons, L.L.C. $39.04 06/05/2024 Food and Beverage Undisputed 01/23/2026 1101475691 CMS
E.R. Squibb & Sons, L.L.C. $26.22 08/14/2024 Food and Beverage Undisputed 01/23/2026 1101475733 CMS
Incyte Corporation $16.16 04/30/2024 Food and Beverage Undisputed 01/23/2026 1141313257 CMS
Incyte Corporation $13.83 07/16/2024 Food and Beverage Undisputed 01/23/2026 1141259631 CMS
Incyte Corporation $13.91 07/25/2024 Food and Beverage Undisputed 01/23/2026 1141314211 CMS
Incyte Corporation $13.21 08/20/2024 Food and Beverage Undisputed 01/23/2026 1141183720 CMS
Janssen Biotech, Inc. $10.63 01/10/2024 Food and Beverage Undisputed 01/23/2026 1078291011 CMS
Janssen Biotech, Inc. $8.22 03/14/2024 Food and Beverage Undisputed 01/23/2026 1078291089 CMS
Janssen Biotech, Inc. $89.99 05/04/2024 Education Undisputed 01/23/2026 1078290993 CMS
Janssen Biotech, Inc. $17.24 05/07/2024 Food and Beverage Undisputed 01/23/2026 1078291117 CMS
Janssen Biotech, Inc. $16.72 06/07/2024 Food and Beverage Undisputed 01/23/2026 1078291179 CMS
Janssen Biotech, Inc. $27.54 07/24/2024 Food and Beverage Undisputed 01/23/2026 1078291241 CMS
Janssen Biotech, Inc. $19.18 08/08/2024 Food and Beverage Undisputed 01/23/2026 1078291295 CMS
Janssen Biotech, Inc. $7.43 09/26/2024 Food and Beverage Undisputed 01/23/2026 1078290985 CMS
Janssen Biotech, Inc. $99.99 10/15/2024 Education Undisputed 01/23/2026 1078291121 CMS
Janssen Biotech, Inc. $14.60 10/16/2024 Food and Beverage Undisputed 01/23/2026 1078291201 CMS
Janssen Biotech, Inc. $17.36 10/22/2024 Food and Beverage Undisputed 01/23/2026 1078291041 CMS
MERZ NORTH AMERICA, INC. $27.99 09/24/2024 Food and Beverage Undisputed 01/23/2026 1146372934 CMS
Regeneron Healthcare Solutions, Inc. $15.46 02/28/2024 Food and Beverage Undisputed 01/23/2026 1114255814 CMS
Regeneron Healthcare Solutions, Inc. $25.43 04/16/2024 Food and Beverage Undisputed 01/23/2026 1114255816 CMS
Regeneron Healthcare Solutions, Inc. $29.38 05/30/2024 Food and Beverage Undisputed 01/23/2026 1114255818 CMS
Regeneron Healthcare Solutions, Inc. $28.24 07/10/2024 Food and Beverage Undisputed 01/23/2026 1114255820 CMS
STRATA Skin Sciences, Inc. $21.32 04/18/2024 Food and Beverage Undisputed 01/23/2026 1146583901 CMS
STRATA Skin Sciences, Inc. $32.59 05/22/2024 Food and Beverage Undisputed 01/23/2026 1146583903 CMS
STRATA Skin Sciences, Inc. $2.31 08/27/2024 Food and Beverage Undisputed 01/23/2026 1146583905 CMS
STRATA Skin Sciences, Inc. $29.12 09/03/2024 Food and Beverage Undisputed 01/23/2026 1146583907 CMS
STRATA Skin Sciences, Inc. $2.85 12/09/2024 Food and Beverage Undisputed 01/23/2026 1146583909 CMS
UCB, Inc. $23.32 08/28/2024 Food and Beverage Undisputed 01/23/2026 1143117711 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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