Covered recipient · General Payments record

GIBRAN HAMID MAHMUD

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI: 1518132489
CMS profile: 662484
Location: CENTRALIA, IL

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 · PY2023 · Entire year

$4,381.96

217 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 July 26, 2026. 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

PY2023 · entire year · sorted by reported total

Nature of payment	Amount	Records
Food and Beverage	$4,118.97	214
Education	$262.99	3

By paying entity

PY2023 · entire year · sorted by reported total

Paying entity	Amount	Records
Novartis Pharmaceuticals Corporation	$433.91	22
Janssen Biotech, Inc.	$403.67	13
Merck Sharp & Dohme LLC	$288.10	16
Gilead Sciences, Inc.	$271.58	10
PFIZER INC.	$202.70	10
Incyte Corporation	$189.07	13
Celgene Corporation	$188.61	13
Genentech USA, Inc.	$186.64	12
Seagen Inc.	$182.46	9
GENZYME CORPORATION	$177.38	9
E.R. Squibb & Sons, L.L.C.	$160.96	9
Daiichi Sankyo Inc.	$149.84	7
AstraZeneca Pharmaceuticals LP	$141.67	7
ABBVIE INC.	$128.72	5
Takeda Pharmaceuticals U.S.A., Inc.	$127.60	5
Lilly USA, LLC	$127.56	6
Amgen Inc.	$116.60	5
Stemline Therapeutics Inc.	$76.93	4
AVEO Pharmaceuticals, Inc.	$75.24	4
Pharmacyclics LLC, An AbbVie Company	$71.68	3
Mirati Therapeutics, Inc.	$70.82	4
Astellas Pharma US Inc	$52.37	2
SERVIER PHARMACEUTICALS LLC	$45.82	3
RECORDATI_RARE_DISEASES_INC.	$44.06	1
Boehringer Ingelheim Pharmaceuticals, Inc.	$43.19	2
Genmab U.S., Inc.	$39.44	2
Karyopharm Therapeutics Inc.	$36.51	2
BeiGene USA, Inc.	$35.19	2
MorphoSys, US Inc.	$30.32	2
Rigel Pharmaceuticals, Inc.	$30.18	2
JAZZ PHARMACEUTICALS INC.	$27.44	1
Bayer Healthcare Pharmaceuticals Inc.	$26.61	1
Regeneron Healthcare Solutions, Inc.	$25.12	1
ARRAY BIOPHARMA INC	$24.98	2
Eisai Inc.	$23.68	1
G1 Therapeutics, Inc.	$23.10	1
EMD Serono, Inc.	$21.40	1
Exelixis Inc.	$20.04	1
ADC Therapeutics America, Inc.	$16.53	1
Adaptive Biotechnologies Corporation	$15.55	1
GlaxoSmithKline, LLC.	$14.65	1
SOBI, INC	$14.04	1

Page 1 of 5; records 1–50 of 217 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

GIBRAN HAMID MAHMUD

NPI 1518132489 · CMS profile ID 662484

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

CENTRALIA, IL

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.

General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 5; records 1–50 of 217 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1518132489?year=2023&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain: GIBRAN HAMID MAHMUD, NPI 1518132489, CMS profile ID 662484. General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 217 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1518132489?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7: IndustryPayments. (2026). GIBRAN HAMID MAHMUD, NPI 1518132489, CMS profile ID 662484. General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 217 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1518132489?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook: GIBRAN HAMID MAHMUD, NPI 1518132489, CMS profile ID 662484, IndustryPayments, General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 5; records 1–50 of 217 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1518132489?year=2023&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

General Payments only. Research Payments and Ownership/Investment Interests are separate datasets and are not included.

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

Centers for Medicare & Medicaid Services, Open Payments

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.

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.

IndustryPayments.org is not a consumer reporting agency as defined by the Fair Credit Reporting Act. Do not use this site to determine any person's eligibility for employment, credentialing, insurance, credit, housing, or any other purpose covered by the FCRA.

Methodology: https://industrypayments.org/methodology

Payment records · PY2023

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

Reporting company Nature of payment

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

217 matching records · $4,381.96 reported total · 0 disputed

Nature of payment: All payment types

Records imported here November 5, 2026 (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 217 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 217.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
Celgene Corporation	$20.21	12/22/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015636595	CMS
GENZYME CORPORATION	$17.84	12/19/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050148061	CMS
Karyopharm Therapeutics Inc.	$19.92	12/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1056900615	CMS
Lilly USA, LLC	$23.49	12/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1031498947	CMS
Celgene Corporation	$13.53	12/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015636603	CMS
Daiichi Sankyo Inc.	$23.69	12/06/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1006565907	CMS
Daiichi Sankyo Inc.	$24.78	12/06/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1006568339	CMS
Novartis Pharmaceuticals Corporation	$29.49	12/05/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992927023	CMS
ADC Therapeutics America, Inc.	$16.53	12/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1053785917	CMS
Gilead Sciences, Inc.	$17.51	11/30/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025911749	CMS
ARRAY BIOPHARMA INC	$11.13	11/29/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049558527	CMS
Seagen Inc.	$22.15	11/28/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	995755381	CMS
Rigel Pharmaceuticals, Inc.	$15.28	11/27/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1033438539	CMS
Incyte Corporation	$19.71	11/22/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044471317	CMS
Incyte Corporation	$16.20	11/20/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044471325	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$31.22	11/17/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1055467791	CMS
PFIZER INC.	$25.87	11/16/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050636163	CMS
Novartis Pharmaceuticals Corporation	$22.14	11/14/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992927015	CMS
PFIZER INC.	$21.05	11/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050585873	CMS
PFIZER INC.	$22.51	11/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050678877	CMS
Celgene Corporation	$6.52	11/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015636563	CMS
E.R. Squibb & Sons, L.L.C.	$18.58	11/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015636571	CMS
SERVIER PHARMACEUTICALS LLC	$12.95	11/09/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1055088125	CMS
Novartis Pharmaceuticals Corporation	$26.20	11/08/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992927021	CMS
Seagen Inc.	$25.92	11/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	995755359	CMS
Janssen Biotech, Inc.	$99.00	11/06/2023	Education	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	988213903	CMS
Janssen Biotech, Inc.	$16.51	11/06/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	988213931	CMS
Merck Sharp & Dohme LLC	$16.34	11/03/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048617073	CMS
MorphoSys, US Inc.	$16.82	11/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1060326399	CMS
Stemline Therapeutics Inc.	$22.99	11/01/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040026543	CMS
E.R. Squibb & Sons, L.L.C.	$14.63	10/31/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015636567	CMS
Gilead Sciences, Inc.	$14.73	10/30/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1026002879	CMS
Merck Sharp & Dohme LLC	$14.79	10/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048617075	CMS
E.R. Squibb & Sons, L.L.C.	$27.92	10/24/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015636551	CMS
Janssen Biotech, Inc.	$27.40	10/24/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	988213911	CMS
Astellas Pharma US Inc	$30.01	10/20/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1034611181	CMS
GENZYME CORPORATION	$23.67	10/20/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050148001	CMS
Genentech USA, Inc.	$19.28	10/19/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040369611	CMS
Incyte Corporation	$11.38	10/18/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044471271	CMS
Daiichi Sankyo Inc.	$16.27	10/17/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1006510097	CMS
PFIZER INC.	$27.22	10/16/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050628025	CMS
Exelixis Inc.	$20.04	10/12/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044608659	CMS
Incyte Corporation	$20.05	10/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044471281	CMS
Novartis Pharmaceuticals Corporation	$23.03	10/09/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992927011	CMS
Genentech USA, Inc.	$23.74	10/06/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040369599	CMS
Lilly USA, LLC	$21.10	10/04/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1031652711	CMS
ABBVIE INC.	$20.32	10/03/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	997817943	CMS
AVEO Pharmaceuticals, Inc.	$19.39	10/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049059193	CMS
Novartis Pharmaceuticals Corporation	$22.25	09/29/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992927013	CMS
Amgen Inc.	$31.10	09/28/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1019917433	CMS

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$2,856.78	203
PY2020	$904.76	48
PY2021	$1,878.82	117
PY2022	$3,704.70	209
PY2023	$4,381.96	217
PY2024	$3,611.31	178
PY2025	$3,655.64	177

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, 2020, 2021, 2022, 2023, 2024, 2025

Source files and profile matching

Source files: Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , 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.