Covered recipient · General Payments record

PETER MATHERN

Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

NPI: 1316995699
CMS profile: 14268
Location: FLAGSTAFF, AZ

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

$2,776.71

142 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	$2,755.71	141
Education	$21.00	1

By paying entity

PY2023 · entire year · sorted by reported total

Paying entity	Amount	Records
E.R. Squibb & Sons, L.L.C.	$190.46	11
Celgene Corporation	$183.50	14
Genentech USA, Inc.	$176.73	7
Merck Sharp & Dohme LLC	$174.02	7
PFIZER INC.	$156.84	10
Mirati Therapeutics, Inc.	$119.06	6
Novartis Pharmaceuticals Corporation	$105.28	5
Eisai Inc.	$99.59	5
GENZYME CORPORATION	$90.35	4
Incyte Corporation	$83.51	4
AstraZeneca Pharmaceuticals LP	$80.88	4
Lilly USA, LLC	$75.59	3
Seagen Inc.	$70.91	4
Gilead Sciences, Inc.	$70.36	4
Stemline Therapeutics Inc.	$68.32	2
Astellas Pharma US Inc	$66.28	3
Kite Pharma, Inc.	$65.92	4
Amgen Inc.	$59.31	3
Alexion Pharmaceuticals, Inc.	$58.43	3
Daiichi Sankyo Inc.	$57.21	2
Progenics Pharmaceuticals, Inc.	$52.27	2
Regeneron Healthcare Solutions, Inc.	$51.49	2
ABBVIE INC.	$44.37	2
Rigel Pharmaceuticals, Inc.	$42.01	3
ARRAY BIOPHARMA INC	$41.50	3
Puma Biotechnology, Inc.	$40.99	2
SERVIER PHARMACEUTICALS LLC	$40.10	2
Blueprint Medicines Corporation	$39.86	2
Janssen Biotech, Inc.	$39.46	2
Bayer Healthcare Pharmaceuticals Inc.	$30.83	1
BeiGene USA, Inc.	$29.66	2
TerSera Therapeutics LLC	$29.15	1
AngioDynamics, Inc.	$27.52	1
PharmaEssentia USA Corporation	$22.93	1
JAZZ PHARMACEUTICALS INC.	$22.37	1
Pharmacyclics LLC, An AbbVie Company	$22.14	1
SOBI, INC	$20.56	1
Sumitomo Pharma America, Inc.	$20.56	1
Deciphera Pharmaceuticals Inc.	$18.29	1
Abbott Laboratories	$16.72	1
GlaxoSmithKline, LLC.	$16.19	1
CTI BioPharma Corp.	$15.37	1
AVEO Pharmaceuticals, Inc.	$13.46	1
EMD Serono, Inc.	$13.37	1
Ipsen Biopharmaceuticals, Inc	$12.99	1

Page 1 of 3; records 1–50 of 142 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

PETER MATHERN

NPI 1316995699 · CMS profile ID 14268

Allopathic & Osteopathic Physicians / Internal Medicine / Medical Oncology

FLAGSTAFF, AZ

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 3; records 1–50 of 142 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1316995699?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: PETER MATHERN, NPI 1316995699, CMS profile ID 14268. 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 3; records 1–50 of 142 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1316995699?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7: IndustryPayments. (2026). PETER MATHERN, NPI 1316995699, CMS profile ID 14268. 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 3; records 1–50 of 142 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1316995699?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook: PETER MATHERN, NPI 1316995699, CMS profile ID 14268, 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 3; records 1–50 of 142 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-1316995699?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

142 matching records · $2,776.71 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 142 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 142.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
SERVIER PHARMACEUTICALS LLC	$22.70	12/20/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1151030005	CMS
Merck Sharp & Dohme LLC	$30.69	12/19/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048698283	CMS
Alexion Pharmaceuticals, Inc.	$15.38	12/15/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1017005803	CMS
Lilly USA, LLC	$25.10	12/14/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1032121201	CMS
PFIZER INC.	$24.22	12/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050248983	CMS
Puma Biotechnology, Inc.	$22.93	12/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1059051365	CMS
Novartis Pharmaceuticals Corporation	$22.85	12/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992848135	CMS
GENZYME CORPORATION	$25.68	12/05/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049822969	CMS
PFIZER INC.	$29.98	12/05/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049714015	CMS
Genentech USA, Inc.	$17.61	12/04/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040503107	CMS
Incyte Corporation	$18.98	11/30/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044439285	CMS
Daiichi Sankyo Inc.	$27.98	11/29/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1006555813	CMS
PFIZER INC.	$16.16	11/27/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050243483	CMS
PFIZER INC.	$0.69	11/27/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050274931	CMS
Regeneron Healthcare Solutions, Inc.	$28.24	11/21/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	999291417	CMS
Celgene Corporation	$23.39	11/16/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400769	CMS
Eisai Inc.	$22.04	11/15/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1023327015	CMS
Incyte Corporation	$24.20	11/14/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044439245	CMS
AngioDynamics, Inc.	$27.52	11/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025289537	CMS
Janssen Biotech, Inc.	$17.79	11/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	988017733	CMS
Novartis Pharmaceuticals Corporation	$24.73	11/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992848133	CMS
BeiGene USA, Inc.	$15.75	11/06/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1051189961	CMS
E.R. Squibb & Sons, L.L.C.	$19.67	10/31/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400727	CMS
Novartis Pharmaceuticals Corporation	$15.95	10/30/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992848131	CMS
AstraZeneca Pharmaceuticals LP	$22.36	10/25/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1014675309	CMS
Seagen Inc.	$22.25	10/25/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	995727003	CMS
Merck Sharp & Dohme LLC	$26.62	10/24/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048845455	CMS
PFIZER INC.	$13.84	10/18/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050148451	CMS
Gilead Sciences, Inc.	$22.89	10/17/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025711821	CMS
Rigel Pharmaceuticals, Inc.	$16.11	10/16/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1033438345	CMS
GlaxoSmithKline, LLC.	$16.19	10/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1002518351	CMS
Kite Pharma, Inc.	$17.10	10/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025271341	CMS
E.R. Squibb & Sons, L.L.C.	$23.15	10/09/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400291	CMS
Eisai Inc.	$16.62	10/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1023327013	CMS
Ipsen Biopharmaceuticals, Inc	$12.99	10/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1045456137	CMS
Mirati Therapeutics, Inc.	$20.71	10/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1057997125	CMS
Mirati Therapeutics, Inc.	$17.11	09/28/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1057997121	CMS
Progenics Pharmaceuticals, Inc.	$19.77	09/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	991116373	CMS
E.R. Squibb & Sons, L.L.C.	$8.65	09/25/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400275	CMS
Merck Sharp & Dohme LLC	$15.30	09/18/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048697927	CMS
GENZYME CORPORATION	$24.43	09/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049822899	CMS
Celgene Corporation	$17.71	09/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400229	CMS
Celgene Corporation	$3.75	09/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400221	CMS
Celgene Corporation	$18.69	09/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400237	CMS
Gilead Sciences, Inc.	$15.17	09/05/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025988819	CMS
E.R. Squibb & Sons, L.L.C.	$15.21	08/31/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400243	CMS
Celgene Corporation	$21.69	08/30/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400213	CMS
ARRAY BIOPHARMA INC	$2.25	08/16/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1050274471	CMS
Stemline Therapeutics Inc.	$29.17	08/16/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040035311	CMS
Janssen Biotech, Inc.	$21.67	08/14/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	988017725	CMS

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$2,353.77	129
PY2020	$461.28	26
PY2021	$136.92	2
PY2022	$6,319.32	184
PY2023	$2,776.71	142
PY2024	$2,976.68	125
PY2025	$3,044.33	123

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.