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

CLAN H HAHN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1023043189
CMS profile
46297
Location
LOS ANGELES, CA

General Payments · PY2018–2024

$8,039.32

  • Reported across 321 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$4,215.81

165 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 program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $839.00 40
PY2019 $20.38 1
PY2022 $628.46 23
PY2023 $2,335.67 92
PY2024 $4,215.81 165

Payment records · PY2024 (165)

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

Program year 2024 2018201920222023 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. $24.90 01/17/2024 Food and Beverage Undisputed 01/23/2026 1103862479 CMS
ABBVIE INC. $25.72 03/04/2024 Food and Beverage Undisputed 01/23/2026 1103862481 CMS
ABBVIE INC. $18.03 09/10/2024 Food and Beverage Undisputed 01/23/2026 1103862483 CMS
Adaptive Biotechnologies Corporation $1.70 03/08/2024 Food and Beverage Undisputed 01/23/2026 1150260496 CMS
Adaptive Biotechnologies Corporation $26.79 03/08/2024 Food and Beverage Undisputed 01/23/2026 1150260498 CMS
Adaptive Biotechnologies Corporation $12.53 05/23/2024 Food and Beverage Undisputed 01/23/2026 1150260500 CMS
Adaptive Biotechnologies Corporation $1.50 06/13/2024 Food and Beverage Undisputed 01/23/2026 1150260502 CMS
Adaptive Biotechnologies Corporation $47.07 06/13/2024 Food and Beverage Undisputed 01/23/2026 1150260504 CMS
Adaptive Biotechnologies Corporation $41.30 09/13/2024 Food and Beverage Undisputed 01/23/2026 1150260506 CMS
Adaptive Biotechnologies Corporation $52.31 09/19/2024 Food and Beverage Undisputed 01/23/2026 1150260508 CMS
Adaptive Biotechnologies Corporation $1.50 09/19/2024 Food and Beverage Undisputed 01/23/2026 1150260510 CMS
Adaptive Biotechnologies Corporation $34.12 10/22/2024 Food and Beverage Undisputed 01/23/2026 1150260512 CMS
Adaptive Biotechnologies Corporation $24.97 12/13/2024 Food and Beverage Undisputed 01/23/2026 1150260514 CMS
ARRAY BIOPHARMA INC $4.42 04/17/2024 Food and Beverage Undisputed 01/23/2026 1131726807 CMS
ARRAY BIOPHARMA INC $25.61 08/23/2024 Food and Beverage Undisputed 01/23/2026 1131357210 CMS
ARRAY BIOPHARMA INC $29.77 09/23/2024 Food and Beverage Undisputed 01/23/2026 1131361143 CMS
ARRAY BIOPHARMA INC $2.70 10/28/2024 Food and Beverage Undisputed 01/23/2026 1131376502 CMS
ARRAY BIOPHARMA INC $23.88 10/28/2024 Food and Beverage Undisputed 01/23/2026 1131376506 CMS
ARRAY BIOPHARMA INC $23.55 12/11/2024 Food and Beverage Undisputed 01/23/2026 1131395947 CMS
AstraZeneca Pharmaceuticals LP $30.00 09/18/2024 Food and Beverage Undisputed 01/23/2026 1105456444 CMS
AstraZeneca Pharmaceuticals LP $20.08 11/20/2024 Food and Beverage Undisputed 01/23/2026 1105802051 CMS
AstraZeneca Pharmaceuticals LP $27.87 12/16/2024 Food and Beverage Undisputed 01/23/2026 1105451245 CMS
Azurity Pharmaceuticals, Inc. $16.60 11/11/2024 Food and Beverage Undisputed 01/23/2026 1134006615 CMS
Bayer Healthcare Pharmaceuticals Inc. $1.79 02/20/2024 Food and Beverage Undisputed 01/23/2026 1086091097 CMS
Bayer Healthcare Pharmaceuticals Inc. $28.14 02/21/2024 Food and Beverage Undisputed 01/23/2026 1086199700 CMS
Bayer Healthcare Pharmaceuticals Inc. $27.88 04/17/2024 Food and Beverage Undisputed 01/23/2026 1086162552 CMS
Bayer Healthcare Pharmaceuticals Inc. $1.76 06/19/2024 Food and Beverage Undisputed 01/23/2026 1086083159 CMS
Bayer Healthcare Pharmaceuticals Inc. $28.25 06/19/2024 Food and Beverage Undisputed 01/23/2026 1086108434 CMS
Bayer Healthcare Pharmaceuticals Inc. $25.12 07/16/2024 Food and Beverage Undisputed 01/23/2026 1086225174 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.84 08/08/2024 Food and Beverage Undisputed 01/23/2026 1086254072 CMS
Bayer Healthcare Pharmaceuticals Inc. $2.59 08/29/2024 Food and Beverage Undisputed 01/23/2026 1086090821 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.69 08/29/2024 Food and Beverage Undisputed 01/23/2026 1086191420 CMS
Bayer Healthcare Pharmaceuticals Inc. $2.45 10/16/2024 Food and Beverage Undisputed 01/23/2026 1086082060 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.56 10/16/2024 Food and Beverage Undisputed 01/23/2026 1086128230 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.52 11/19/2024 Food and Beverage Undisputed 01/23/2026 1086112332 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.88 12/09/2024 Food and Beverage Undisputed 01/23/2026 1086259896 CMS
BeiGene USA, Inc. $22.93 01/25/2024 Food and Beverage Undisputed 01/23/2026 1120864844 CMS
BeiGene USA, Inc. $13.74 02/14/2024 Food and Beverage Undisputed 01/23/2026 1120864842 CMS
Blueprint Medicines Corporation $22.91 12/03/2024 Food and Beverage Undisputed 01/23/2026 1147448456 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.60 08/01/2024 Food and Beverage Undisputed 01/23/2026 1117839889 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.33 10/31/2024 Food and Beverage Undisputed 01/23/2026 1117839887 CMS
Boston Scientific Corporation $19.82 02/12/2024 Food and Beverage Undisputed 01/23/2026 1092692007 CMS
Celgene Corporation $31.06 04/29/2024 Food and Beverage Undisputed 01/23/2026 1101111454 CMS
Celgene Corporation $30.57 08/05/2024 Food and Beverage Undisputed 01/23/2026 1101111456 CMS
Celgene Corporation $27.90 09/24/2024 Food and Beverage Undisputed 01/23/2026 1101111458 CMS
Celgene Corporation $34.32 09/30/2024 Food and Beverage Undisputed 01/23/2026 1101111460 CMS
Celgene Corporation $25.35 11/04/2024 Food and Beverage Undisputed 01/23/2026 1101111462 CMS
Celgene Corporation $7.10 11/04/2024 Food and Beverage Undisputed 01/23/2026 1101111464 CMS
Daiichi Sankyo Inc. $22.92 04/02/2024 Food and Beverage Undisputed 01/23/2026 1089429946 CMS
Daiichi Sankyo Inc. $29.81 04/19/2024 Food and Beverage Undisputed 01/23/2026 1089429942 CMS
Daiichi Sankyo Inc. $24.64 06/04/2024 Food and Beverage Undisputed 01/23/2026 1089429948 CMS
Daiichi Sankyo Inc. $28.78 06/24/2024 Food and Beverage Undisputed 01/23/2026 1089429950 CMS
E.R. Squibb & Sons, L.L.C. $32.44 01/23/2024 Food and Beverage Undisputed 01/23/2026 1101332922 CMS
E.R. Squibb & Sons, L.L.C. $29.48 02/13/2024 Food and Beverage Undisputed 01/23/2026 1101332924 CMS
E.R. Squibb & Sons, L.L.C. $28.92 04/11/2024 Food and Beverage Undisputed 01/23/2026 1101332938 CMS
E.R. Squibb & Sons, L.L.C. $31.70 05/08/2024 Food and Beverage Undisputed 01/23/2026 1101332946 CMS
E.R. Squibb & Sons, L.L.C. $30.42 06/05/2024 Food and Beverage Undisputed 01/23/2026 1101332950 CMS
E.R. Squibb & Sons, L.L.C. $29.25 08/13/2024 Food and Beverage Undisputed 01/23/2026 1101332966 CMS
E.R. Squibb & Sons, L.L.C. $33.32 09/04/2024 Food and Beverage Undisputed 01/23/2026 1101332970 CMS
E.R. Squibb & Sons, L.L.C. $30.37 10/17/2024 Food and Beverage Undisputed 01/23/2026 1101332974 CMS
E.R. Squibb & Sons, L.L.C. $33.50 11/07/2024 Food and Beverage Undisputed 01/23/2026 1101332984 CMS
E.R. Squibb & Sons, L.L.C. $25.78 11/13/2024 Food and Beverage Undisputed 01/23/2026 1101332980 CMS
E.R. Squibb & Sons, L.L.C. $30.17 12/05/2024 Food and Beverage Undisputed 01/23/2026 1101332990 CMS
Eisai Inc. $8.19 03/25/2024 Food and Beverage Undisputed 01/23/2026 1110737407 CMS
Eisai Inc. $22.09 03/25/2024 Food and Beverage Undisputed 01/23/2026 1110737411 CMS
Eisai Inc. $5.63 04/16/2024 Food and Beverage Undisputed 01/23/2026 1110737413 CMS
Eisai Inc. $23.86 04/26/2024 Food and Beverage Undisputed 01/23/2026 1110737409 CMS
Eisai Inc. $19.26 05/22/2024 Food and Beverage Undisputed 01/23/2026 1110737405 CMS
Eisai Inc. $28.28 09/09/2024 Food and Beverage Undisputed 01/23/2026 1110737403 CMS
Eisai Inc. $24.84 10/01/2024 Food and Beverage Undisputed 01/23/2026 1110737415 CMS
Eisai Inc. $0.75 10/01/2024 Food and Beverage Undisputed 01/23/2026 1110737417 CMS
Eisai Inc. $11.25 10/25/2024 Food and Beverage Undisputed 01/23/2026 1110737419 CMS
Eisai Inc. $24.24 11/12/2024 Food and Beverage Undisputed 01/23/2026 1110737421 CMS
Eisai Inc. $6.79 12/09/2024 Food and Beverage Undisputed 01/23/2026 1110737423 CMS
EMD Serono, Inc. $38.77 01/03/2024 Food and Beverage Undisputed 01/23/2026 1120224699 CMS
EMD Serono, Inc. $38.31 04/03/2024 Food and Beverage Undisputed 01/23/2026 1120227126 CMS
Exelixis Inc. $29.26 03/25/2024 Food and Beverage Undisputed 01/23/2026 1138556499 CMS
Exelixis Inc. $6.53 05/01/2024 Food and Beverage Undisputed 01/23/2026 1138556495 CMS
Exelixis Inc. $27.33 05/13/2024 Food and Beverage Undisputed 01/23/2026 1138556497 CMS
Exelixis Inc. $32.76 08/12/2024 Food and Beverage Undisputed 01/23/2026 1138556501 CMS
Exelixis Inc. $27.69 09/27/2024 Food and Beverage Undisputed 01/23/2026 1138556505 CMS
Exelixis Inc. $30.09 11/25/2024 Food and Beverage Undisputed 01/23/2026 1138556503 CMS
GENZYME CORPORATION $32.42 03/26/2024 Food and Beverage Undisputed 01/23/2026 1139698110 CMS
Gilead Sciences, Inc. $32.58 02/05/2024 Food and Beverage Undisputed 01/23/2026 1133804633 CMS
Gilead Sciences, Inc. $25.33 03/05/2024 Food and Beverage Undisputed 01/23/2026 1133804635 CMS
Gilead Sciences, Inc. $31.73 04/16/2024 Food and Beverage Undisputed 01/23/2026 1133804637 CMS
Gilead Sciences, Inc. $30.86 05/14/2024 Food and Beverage Undisputed 01/23/2026 1133804639 CMS
Gilead Sciences, Inc. $31.72 07/15/2024 Food and Beverage Undisputed 01/23/2026 1133804641 CMS
Gilead Sciences, Inc. $5.75 08/14/2024 Food and Beverage Undisputed 01/23/2026 1133804643 CMS
Gilead Sciences, Inc. $31.73 10/21/2024 Food and Beverage Undisputed 01/23/2026 1133804645 CMS
GlaxoSmithKline, LLC. $31.36 06/27/2024 Food and Beverage Undisputed 01/23/2026 1116685491 CMS
GlaxoSmithKline, LLC. $14.89 08/08/2024 Food and Beverage Undisputed 01/23/2026 1116020263 CMS
GlaxoSmithKline, LLC. $23.68 09/06/2024 Food and Beverage Undisputed 01/23/2026 1116389504 CMS
ImmunoGen, Inc. $29.22 01/30/2024 Food and Beverage Undisputed 01/23/2026 1099941559 CMS
Incyte Corporation $1.55 06/14/2024 Food and Beverage Undisputed 01/23/2026 1141230185 CMS
Incyte Corporation $25.65 06/14/2024 Food and Beverage Undisputed 01/23/2026 1141230187 CMS
Incyte Corporation $26.56 06/26/2024 Food and Beverage Undisputed 01/23/2026 1141306343 CMS
Incyte Corporation $27.07 07/31/2024 Food and Beverage Undisputed 01/23/2026 1141230923 CMS
Incyte Corporation $29.51 08/21/2024 Food and Beverage Undisputed 01/23/2026 1141307057 CMS
Incyte Corporation $29.49 10/02/2024 Food and Beverage Undisputed 01/23/2026 1141231457 CMS
Incyte Corporation $29.16 12/05/2024 Food and Beverage Undisputed 01/23/2026 1141322199 CMS
Janssen Biotech, Inc. $22.91 09/17/2024 Food and Beverage Undisputed 01/23/2026 1078306686 CMS
JAZZ PHARMACEUTICALS INC. $33.04 05/15/2024 Food and Beverage Undisputed 01/23/2026 1150195365 CMS
JAZZ PHARMACEUTICALS INC. $31.32 09/19/2024 Food and Beverage Undisputed 01/23/2026 1150195363 CMS
Merck Sharp & Dohme LLC $31.07 02/15/2024 Food and Beverage Undisputed 01/23/2026 1141803197 CMS
Merck Sharp & Dohme LLC $32.16 03/13/2024 Food and Beverage Undisputed 01/23/2026 1141905106 CMS
Merck Sharp & Dohme LLC $33.14 03/20/2024 Food and Beverage Undisputed 01/23/2026 1141905104 CMS
Merck Sharp & Dohme LLC $31.92 04/10/2024 Food and Beverage Undisputed 01/23/2026 1141803219 CMS
Merck Sharp & Dohme LLC $34.84 04/22/2024 Food and Beverage Undisputed 01/23/2026 1141803213 CMS
Merck Sharp & Dohme LLC $27.77 06/25/2024 Food and Beverage Undisputed 01/23/2026 1141803215 CMS
Merck Sharp & Dohme LLC $32.11 07/03/2024 Food and Beverage Undisputed 01/23/2026 1141803203 CMS
Merck Sharp & Dohme LLC $30.50 07/09/2024 Food and Beverage Undisputed 01/23/2026 1141803199 CMS
Merck Sharp & Dohme LLC $23.65 08/20/2024 Food and Beverage Undisputed 01/23/2026 1141803217 CMS
Merck Sharp & Dohme LLC $23.90 10/15/2024 Food and Beverage Undisputed 01/23/2026 1141803205 CMS
Merck Sharp & Dohme LLC $27.23 11/20/2024 Food and Beverage Undisputed 01/23/2026 1141905108 CMS
Merck Sharp & Dohme LLC $32.45 12/10/2024 Food and Beverage Undisputed 01/23/2026 1141803201 CMS
Mirati Therapeutics, Inc. $27.96 02/06/2024 Food and Beverage Undisputed 01/23/2026 1117164963 CMS
Mirati Therapeutics, Inc. $30.47 05/06/2024 Food and Beverage Undisputed 01/23/2026 1117164968 CMS
Mirati Therapeutics, Inc. $28.07 09/11/2024 Food and Beverage Undisputed 01/23/2026 1117164960 CMS
Myriad Genetic Laboratories, Inc. $35.35 11/08/2024 Food and Beverage Undisputed 01/23/2026 1152532172 CMS
Novartis Pharmaceuticals Corporation $22.01 03/01/2024 Food and Beverage Undisputed 01/23/2026 1086833555 CMS
Novartis Pharmaceuticals Corporation $20.57 06/06/2024 Food and Beverage Undisputed 01/23/2026 1086833557 CMS
Novartis Pharmaceuticals Corporation $25.73 06/20/2024 Food and Beverage Undisputed 01/23/2026 1086833559 CMS
Novartis Pharmaceuticals Corporation $20.61 09/03/2024 Food and Beverage Undisputed 01/23/2026 1086833561 CMS
PFIZER INC. $4.16 01/31/2024 Food and Beverage Undisputed 01/23/2026 1131721140 CMS
PFIZER INC. $28.62 02/22/2024 Food and Beverage Undisputed 01/23/2026 1131722152 CMS
PFIZER INC. $25.53 03/13/2024 Food and Beverage Undisputed 01/23/2026 1131721816 CMS
PFIZER INC. $2.00 03/21/2024 Food and Beverage Undisputed 01/23/2026 1131727655 CMS
PFIZER INC. $34.80 03/21/2024 Food and Beverage Undisputed 01/23/2026 1131735484 CMS
PFIZER INC. $7.11 04/08/2024 Food and Beverage Undisputed 01/23/2026 1131726821 CMS
PFIZER INC. $27.43 04/25/2024 Food and Beverage Undisputed 01/23/2026 1131307843 CMS
PFIZER INC. $4.87 05/03/2024 Food and Beverage Undisputed 01/23/2026 1131322607 CMS
PFIZER INC. $26.92 06/10/2024 Food and Beverage Undisputed 01/23/2026 1131738171 CMS
PFIZER INC. $7.70 06/10/2024 Food and Beverage Undisputed 01/23/2026 1131738499 CMS
PFIZER INC. $7.80 07/16/2024 Food and Beverage Undisputed 01/23/2026 1131794689 CMS
PFIZER INC. $1.82 07/25/2024 Food and Beverage Undisputed 01/23/2026 1131795988 CMS
PFIZER INC. $37.02 07/25/2024 Food and Beverage Undisputed 01/23/2026 1131795990 CMS
PFIZER INC. $30.44 08/15/2024 Food and Beverage Undisputed 01/23/2026 1131902969 CMS
PFIZER INC. $7.22 09/04/2024 Food and Beverage Undisputed 01/23/2026 1130879462 CMS
PFIZER INC. $6.57 09/11/2024 Food and Beverage Undisputed 01/23/2026 1132026343 CMS
PFIZER INC. $30.26 10/24/2024 Food and Beverage Undisputed 01/23/2026 1131377178 CMS
PFIZER INC. $25.94 12/17/2024 Food and Beverage Undisputed 01/23/2026 1131477613 CMS
PharmaEssentia USA Corporation $31.54 01/31/2024 Food and Beverage Undisputed 01/23/2026 1137308422 CMS
PharmaEssentia USA Corporation $27.75 05/23/2024 Food and Beverage Undisputed 01/23/2026 1137308436 CMS
PharmaEssentia USA Corporation $28.56 10/23/2024 Food and Beverage Undisputed 01/23/2026 1137308556 CMS
Regeneron Healthcare Solutions, Inc. $33.31 01/17/2024 Food and Beverage Undisputed 01/23/2026 1114062907 CMS
Regeneron Healthcare Solutions, Inc. $39.24 02/21/2024 Food and Beverage Undisputed 01/23/2026 1114062909 CMS
Regeneron Healthcare Solutions, Inc. $14.00 03/12/2024 Food and Beverage Undisputed 01/23/2026 1114062911 CMS
Regeneron Healthcare Solutions, Inc. $37.23 04/25/2024 Food and Beverage Undisputed 01/23/2026 1114062913 CMS
Regeneron Healthcare Solutions, Inc. $13.69 06/11/2024 Food and Beverage Undisputed 01/23/2026 1114062915 CMS
Regeneron Healthcare Solutions, Inc. $32.77 06/12/2024 Food and Beverage Undisputed 01/23/2026 1114062917 CMS
Regeneron Healthcare Solutions, Inc. $39.80 07/24/2024 Food and Beverage Undisputed 01/23/2026 1114062919 CMS
Regeneron Healthcare Solutions, Inc. $36.78 08/29/2024 Food and Beverage Undisputed 01/23/2026 1114062921 CMS
Regeneron Healthcare Solutions, Inc. $9.36 09/26/2024 Food and Beverage Undisputed 01/23/2026 1114062923 CMS
Regeneron Healthcare Solutions, Inc. $36.60 09/27/2024 Food and Beverage Undisputed 01/23/2026 1114062925 CMS
Regeneron Healthcare Solutions, Inc. $36.60 10/31/2024 Food and Beverage Undisputed 01/23/2026 1114062927 CMS
Regeneron Healthcare Solutions, Inc. $39.84 11/28/2024 Food and Beverage Undisputed 01/23/2026 1114062929 CMS
Regeneron Healthcare Solutions, Inc. $34.46 12/24/2024 Food and Beverage Undisputed 01/23/2026 1114062931 CMS
Secura Bio, Inc. $40.01 04/08/2024 Food and Beverage Undisputed 01/23/2026 1133336419 CMS
Secura Bio, Inc. $118.32 07/13/2024 Food and Beverage Undisputed 01/23/2026 1133336421 CMS
Secura Bio, Inc. $106.97 07/30/2024 Food and Beverage Undisputed 01/23/2026 1133336423 CMS
Secura Bio, Inc. $20.44 12/19/2024 Food and Beverage Undisputed 01/23/2026 1133336425 CMS
SpringWorks Therapeutics, Inc. $40.63 04/23/2024 Food and Beverage Undisputed 01/23/2026 1085804735 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.61 01/09/2024 Food and Beverage Undisputed 01/23/2026 1144958586 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.61 05/20/2024 Food and Beverage Undisputed 01/23/2026 1144958588 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, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.