Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

CLAN H HAHN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1023043189
CMS profile
46297
Location
LOS ANGELES, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2024 · Entire year

$4,215.81

165 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2024 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,215.81 165

By paying entity

PY2024 · entire year · sorted by reported total

Payment records · PY2024

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

165 matching records · $4,215.81 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 165 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 165.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Regeneron Healthcare Solutions, Inc. $34.4612/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114062931 CMS
Secura Bio, Inc. $20.4412/19/2024 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/20261133336425 CMS
PFIZER INC. $25.9412/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131477613 CMS
AstraZeneca Pharmaceuticals LP $27.8712/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261105451245 CMS
Adaptive Biotechnologies Corporation $24.9712/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261150260514 CMS
ARRAY BIOPHARMA INC $23.5512/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131395947 CMS
Merck Sharp & Dohme LLC $32.4512/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141803201 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.8812/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261086259896 CMS
Eisai Inc. $6.7912/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110737423 CMS
E.R. Squibb & Sons, L.L.C. $30.1712/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101332990 CMS
Incyte Corporation $29.1612/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141322199 CMS
Blueprint Medicines Corporation $22.9112/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261147448456 CMS
Regeneron Healthcare Solutions, Inc. $39.8411/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114062929 CMS
Exelixis Inc. $30.0911/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138556503 CMS
AstraZeneca Pharmaceuticals LP $20.0811/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261105802051 CMS
Merck Sharp & Dohme LLC $27.2311/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141905108 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.5211/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261086112332 CMS
E.R. Squibb & Sons, L.L.C. $25.7811/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101332980 CMS
Eisai Inc. $24.2411/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110737421 CMS
Azurity Pharmaceuticals, Inc. $16.6011/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261134006615 CMS
Myriad Genetic Laboratories, Inc. $35.3511/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261152532172 CMS
E.R. Squibb & Sons, L.L.C. $33.5011/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101332984 CMS
Celgene Corporation $25.3511/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101111462 CMS
Celgene Corporation $7.1011/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101111464 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.3310/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261117839887 CMS
Regeneron Healthcare Solutions, Inc. $36.6010/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114062927 CMS
ARRAY BIOPHARMA INC $2.7010/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131376502 CMS
ARRAY BIOPHARMA INC $23.8810/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131376506 CMS
Eisai Inc. $11.2510/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110737419 CMS
PFIZER INC. $30.2610/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131377178 CMS
PharmaEssentia USA Corporation $28.5610/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261137308556 CMS
Adaptive Biotechnologies Corporation $34.1210/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261150260512 CMS
Gilead Sciences, Inc. $31.7310/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261133804645 CMS
E.R. Squibb & Sons, L.L.C. $30.3710/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101332974 CMS
Bayer Healthcare Pharmaceuticals Inc. $2.4510/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261086082060 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.5610/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261086128230 CMS
Merck Sharp & Dohme LLC $23.9010/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141803205 CMS
Incyte Corporation $29.4910/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141231457 CMS
Eisai Inc. $24.8410/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110737415 CMS
Eisai Inc. $0.7510/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110737417 CMS
Celgene Corporation $34.3209/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101111460 CMS
Exelixis Inc. $27.6909/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261138556505 CMS
Regeneron Healthcare Solutions, Inc. $36.6009/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114062925 CMS
Regeneron Healthcare Solutions, Inc. $9.3609/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114062923 CMS
Celgene Corporation $27.9009/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101111458 CMS
ARRAY BIOPHARMA INC $29.7709/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131361143 CMS
Adaptive Biotechnologies Corporation $52.3109/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261150260508 CMS
Adaptive Biotechnologies Corporation $1.5009/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261150260510 CMS
JAZZ PHARMACEUTICALS INC. $31.3209/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261150195363 CMS
AstraZeneca Pharmaceuticals LP $30.0009/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261105456444 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $20.38 1
PY2022 $628.46 23
PY2023 $2,335.67 92
PY2024 $4,215.81 165
PY2025 $6,244.12 238

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2022, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2022 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.

Cite this record.

Plain
CLAN H HAHN, NPI 1023043189. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1023043189.
APA 7
IndustryPayments. (2026). CLAN H HAHN, NPI 1023043189 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1023043189
Bluebook
CLAN H HAHN, NPI 1023043189, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1023043189.

Source: Centers for Medicare & Medicaid Services, Open Payments.