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 S HAMMAN

Allopathic & Osteopathic Physicians Dermatology MOHS-Micrographic Surgery

NPI
1538346911
CMS profile
160257
Location
SAN DIEGO, CA

General Payments · PY2018–2024

$3,548.71

  • Reported across 173 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,218.43

54 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 $1,218.43 54

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $316.83 11
PY2019 $221.09 12
PY2020 $21.02 1
PY2021 $163.27 10
PY2022 $389.63 18
PY2023 $1,218.44 67
PY2024 $1,218.43 54

Payment records · PY2024 (54)

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. $22.81 01/16/2024 Food and Beverage Undisputed 01/23/2026 1103870323 CMS
ABBVIE INC. $16.51 01/29/2024 Food and Beverage Undisputed 01/23/2026 1103870325 CMS
ABBVIE INC. $18.47 05/21/2024 Food and Beverage Undisputed 01/23/2026 1103870327 CMS
ABBVIE INC. $22.12 07/19/2024 Food and Beverage Undisputed 01/23/2026 1103870329 CMS
ABBVIE INC. $21.30 08/22/2024 Food and Beverage Undisputed 01/23/2026 1103870331 CMS
ABBVIE INC. $29.66 08/27/2024 Food and Beverage Undisputed 01/23/2026 1103870333 CMS
ABBVIE INC. $21.55 10/07/2024 Food and Beverage Undisputed 01/23/2026 1103870335 CMS
ABBVIE INC. $25.92 11/14/2024 Food and Beverage Undisputed 01/23/2026 1103870337 CMS
Amgen Inc. $24.95 04/26/2024 Food and Beverage Undisputed 01/23/2026 1117270327 CMS
Arcutis Biotherapeutics, Inc. $23.50 02/13/2024 Food and Beverage Undisputed 01/23/2026 1121065173 CMS
Arcutis Biotherapeutics, Inc. $19.61 05/02/2024 Food and Beverage Undisputed 01/23/2026 1121065175 CMS
Arcutis Biotherapeutics, Inc. $15.66 11/08/2024 Food and Beverage Undisputed 01/23/2026 1121065177 CMS
Biofrontera Inc. $13.41 05/23/2024 Food and Beverage Undisputed 01/23/2026 1095485132 CMS
E.R. Squibb & Sons, L.L.C. $30.09 02/01/2024 Food and Beverage Undisputed 01/23/2026 1101341357 CMS
E.R. Squibb & Sons, L.L.C. $36.59 03/14/2024 Food and Beverage Undisputed 01/23/2026 1101341363 CMS
E.R. Squibb & Sons, L.L.C. $36.80 04/04/2024 Food and Beverage Undisputed 01/23/2026 1101341375 CMS
GENZYME CORPORATION $28.23 04/16/2024 Food and Beverage Undisputed 01/23/2026 1139775819 CMS
GENZYME CORPORATION $34.66 05/24/2024 Food and Beverage Undisputed 01/23/2026 1139775823 CMS
GENZYME CORPORATION $21.52 08/09/2024 Food and Beverage Undisputed 01/23/2026 1139775845 CMS
GENZYME CORPORATION $23.85 09/03/2024 Food and Beverage Undisputed 01/23/2026 1139775849 CMS
Helsinn Therapeutics (U.S.), Inc. $19.25 05/14/2024 Food and Beverage Undisputed 01/23/2026 1134568153 CMS
Incyte Corporation $28.70 02/15/2024 Food and Beverage Undisputed 01/23/2026 1141283617 CMS
Lilly USA, LLC $9.84 01/08/2024 Food and Beverage Undisputed 01/23/2026 1135199482 CMS
Lilly USA, LLC $10.27 02/22/2024 Food and Beverage Undisputed 01/23/2026 1135172970 CMS
Lilly USA, LLC $18.25 05/07/2024 Food and Beverage Undisputed 01/23/2026 1135172972 CMS
Lilly USA, LLC $4.77 07/16/2024 Food and Beverage Undisputed 01/23/2026 1135225124 CMS
Lilly USA, LLC $12.95 07/16/2024 Food and Beverage Undisputed 01/23/2026 1135234198 CMS
Lilly USA, LLC $10.59 07/23/2024 Food and Beverage Undisputed 01/23/2026 1135199484 CMS
Lilly USA, LLC $27.96 09/11/2024 Food and Beverage Undisputed 01/23/2026 1135225129 CMS
Lilly USA, LLC $24.20 11/22/2024 Food and Beverage Undisputed 01/23/2026 1135190867 CMS
Lilly USA, LLC $26.74 12/18/2024 Food and Beverage Undisputed 01/23/2026 1135225120 CMS
Novartis Pharmaceuticals Corporation $20.47 01/05/2024 Food and Beverage Undisputed 01/23/2026 1086885121 CMS
Novartis Pharmaceuticals Corporation $21.84 02/09/2024 Food and Beverage Undisputed 01/23/2026 1086885113 CMS
Novartis Pharmaceuticals Corporation $23.92 11/19/2024 Food and Beverage Undisputed 01/23/2026 1086885141 CMS
Organogenesis Inc. $26.58 03/15/2024 Food and Beverage Undisputed 01/23/2026 1145430285 CMS
PFIZER INC. $16.60 01/05/2024 Food and Beverage Undisputed 01/23/2026 1131552135 CMS
PFIZER INC. $21.27 02/08/2024 Food and Beverage Undisputed 01/23/2026 1131439230 CMS
PFIZER INC. $17.18 02/20/2024 Food and Beverage Undisputed 01/23/2026 1131439780 CMS
PFIZER INC. $24.77 11/14/2024 Food and Beverage Undisputed 01/23/2026 1131557522 CMS
PFIZER INC. $25.07 12/11/2024 Food and Beverage Undisputed 01/23/2026 1131548521 CMS
Regeneron Healthcare Solutions, Inc. $29.71 04/19/2024 Food and Beverage Undisputed 01/23/2026 1114063998 CMS
Regeneron Healthcare Solutions, Inc. $29.99 07/23/2024 Food and Beverage Undisputed 01/23/2026 1114064000 CMS
Regeneron Healthcare Solutions, Inc. $31.61 10/04/2024 Food and Beverage Undisputed 01/23/2026 1114064002 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $33.13 01/09/2024 Food and Beverage Undisputed 01/23/2026 1152183961 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $24.19 01/26/2024 Food and Beverage Undisputed 01/23/2026 1152183969 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $24.24 03/13/2024 Food and Beverage Undisputed 01/23/2026 1152183957 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $25.45 03/22/2024 Food and Beverage Undisputed 01/23/2026 1152183971 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $21.85 03/28/2024 Food and Beverage Undisputed 01/23/2026 1152183963 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $14.92 06/25/2024 Food and Beverage Undisputed 01/23/2026 1152183965 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $32.66 07/12/2024 Food and Beverage Undisputed 01/23/2026 1152183959 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $1.85 07/13/2024 Food and Beverage Undisputed 01/23/2026 1152183967 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $24.86 12/03/2024 Food and Beverage Undisputed 01/23/2026 1152183973 CMS
UCB, Inc. $26.17 03/19/2024 Food and Beverage Undisputed 01/23/2026 1143101743 CMS
UCB, Inc. $19.37 06/11/2024 Food and Beverage Undisputed 01/23/2026 1143101745 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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