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 2 of 3; records 51–100 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 2 of 3; records 51–100 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&page=2#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 2 of 3; records 51–100 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&page=2#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 2 of 3; records 51–100 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&page=2#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 2 of 3; records 51–100 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&page=2#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 51–100 of 142.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
ARRAY BIOPHARMA INC	$18.09	08/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049964737	CMS
Novartis Pharmaceuticals Corporation	$21.61	08/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	992848119	CMS
Regeneron Healthcare Solutions, Inc.	$23.25	08/09/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	999291413	CMS
Incyte Corporation	$20.61	08/08/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1044439317	CMS
PFIZER INC.	$17.00	08/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049888961	CMS
Pharmacyclics LLC, An AbbVie Company	$22.14	08/03/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	998290461	CMS
Eisai Inc.	$20.73	08/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1023327011	CMS
Genentech USA, Inc.	$19.89	08/01/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040503097	CMS
JAZZ PHARMACEUTICALS INC.	$22.37	07/27/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1058408251	CMS
Amgen Inc.	$13.55	07/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1020055425	CMS
Deciphera Pharmaceuticals Inc.	$18.29	07/25/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1053719639	CMS
E.R. Squibb & Sons, L.L.C.	$9.43	07/24/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400099	CMS
Seagen Inc.	$14.71	07/20/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	995726867	CMS
Eisai Inc.	$22.16	07/18/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1023327009	CMS
Alexion Pharmaceuticals, Inc.	$25.12	07/17/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1017069275	CMS
Gilead Sciences, Inc.	$15.18	07/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025988555	CMS
Kite Pharma, Inc.	$18.48	06/29/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025271339	CMS
Kite Pharma, Inc.	$14.49	06/28/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1025271337	CMS
Celgene Corporation	$1.26	06/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400043	CMS
Celgene Corporation	$8.75	06/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400051	CMS
Celgene Corporation	$4.57	06/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400091	CMS
Mirati Therapeutics, Inc.	$20.96	06/22/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1057997119	CMS
Lilly USA, LLC	$25.65	06/21/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1032097871	CMS
Amgen Inc.	$24.83	06/20/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1020055421	CMS
AVEO Pharmaceuticals, Inc.	$13.46	06/15/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049063969	CMS
SERVIER PHARMACEUTICALS LLC	$17.40	06/12/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1055092155	CMS
Celgene Corporation	$4.31	06/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400009	CMS
Celgene Corporation	$14.58	06/07/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400017	CMS
GENZYME CORPORATION	$15.29	06/05/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049822847	CMS
E.R. Squibb & Sons, L.L.C.	$17.93	05/31/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400035	CMS
E.R. Squibb & Sons, L.L.C.	$16.85	05/24/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400123	CMS
Bayer Healthcare Pharmaceuticals Inc.	$30.83	05/23/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1000527598	CMS
Puma Biotechnology, Inc.	$18.06	05/22/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1059047523	CMS
Celgene Corporation	$18.86	05/17/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015400059	CMS
BeiGene USA, Inc.	$13.91	05/15/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1051189963	CMS
Merck Sharp & Dohme LLC	$34.72	05/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048939767	CMS
E.R. Squibb & Sons, L.L.C.	$19.83	05/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1015399985	CMS
PFIZER INC.	$12.05	05/08/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1049388857	CMS
Astellas Pharma US Inc	$23.43	05/04/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1034090869	CMS
Genentech USA, Inc.	$29.65	05/02/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1040503081	CMS
Blueprint Medicines Corporation	$18.91	05/01/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1051267033	CMS
Alexion Pharmaceuticals, Inc.	$17.93	04/27/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1017088039	CMS
Amgen Inc.	$20.93	04/26/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1020055423	CMS
ABBVIE INC.	$19.00	04/25/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	997858477	CMS
Seagen Inc.	$15.81	04/19/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	995726751	CMS
CTI BioPharma Corp.	$15.37	04/17/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1039695061	CMS
SOBI, INC	$20.56	04/13/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1038091251	CMS
Daiichi Sankyo Inc.	$29.23	04/12/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1006342205	CMS
EMD Serono, Inc.	$13.37	04/11/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1032335817	CMS
Merck Sharp & Dohme LLC	$23.97	04/10/2023	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	1048697931	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.