Who Paid My Doc
Peter Mathern
Medical Oncology Flagstaff, AZ Medical Doctor
NPI 1316995699 CMS profile 14268
77 W Forest Ave, Flagstaff, AZ 86001
General payments
$18,069
Research payments
$0
Ownership & investment interest
$0
Through program year 2025, Peter Mathern of Flagstaff, AZ is reported in the CMS Open Payments database as having received $18,069 across 731 general payments and $0 in research payments paid to them.
No combined total General, research and ownership are kept apart. Each is reported under its own rules, and ownership is not money that moved at all but the value of a stake held. A meal, a clinical trial grant and a shareholding do not add up to anything meaningful, so this site does not add them.
General payments for this record sit in the 70th percentile of Medical Oncology profiles with reported payments. Percentile describes the distribution, not the conduct.
By program year
7 rows| Year | Kind | Relative to this record's peak year | Amount | Records |
|---|---|---|---|---|
| 2025 | General | $3,044 | 123 | |
| 2024 | General | $2,977 | 125 | |
| 2023 | General | $2,777 | 142 | |
| 2022 | General | $6,319 | 184 | |
| 2021 | General | $137 | 2 | |
| 2020 | General | $461 | 26 | |
| 2019 | General | $2,354 | 129 |
Beside peers
- Peter Mathern
- Medical Oncology median
- Middle half of Medical Oncology
- National median
In program year 2025, general payments to Peter Mathern were reported at $3,044. Among 3,316 Medical Oncology profiles paid that year, the median was $1,128 and the middle half received between $147 and $5,675.
Show as a table
| Year | Peter Mathern | Medical Oncology median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $2,354 | $968 | $140–$6,658 | $163 |
| 2020 | $461 | $747 | $102–$5,891 | $114 |
| 2021 | $137 | $430 | $50–$4,098 | $132 |
| 2022 | $6,319 | $812 | $127–$4,907 | $149 |
| 2023 | $2,777 | $957 | $144–$5,248 | $160 |
| 2024 | $2,977 | $1,042 | $149–$5,650 | $164 |
| 2025 | $3,044 | $1,128 | $147–$5,675 | $169 |
Breakdown
A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.
Prescribing to Medicare patients
Part D · data year 2024 · 34 drugsPart D claims
1,086
Drug cost
$6,012,631
Branded share of claims
42.4%
| Drug | Type | Relative to their largest | Claims | Drug cost |
|---|---|---|---|---|
| Xtandi Enzalutamide | Brand | 59 | $817,110 | |
| Revlimid Lenalidomide | Brand | 44 | $598,748 | |
| Lenalidomide | Generic | 46 | $498,210 | |
| Venclexta Venetoclax | Brand | 56 | $473,625 | |
| Pomalyst Pomalidomide | Brand | 21 | $417,964 | |
| Lenvima Lenvatinib Mesylate | Brand | 15 | $347,714 | |
| Erleada Apalutamide | Brand | 22 | $324,951 | |
| Tagrisso Osimertinib Mesylate | Brand | 19 | $312,052 | |
| Ibrance Palbociclib | Brand | 19 | $273,749 | |
| Imbruvica Ibrutinib | Brand | 13 | $258,579 |
The 10 drugs with the highest cost, of 34 counted.
Drug cost is what was paid for the drugs at the pharmacy — by Medicare, the patient and others — and is not money to the prescriber. Medicare Part D only: drugs dispensed to Medicare beneficiaries. A drug with fewer than 11 claims for this prescriber is not published, so a missing drug does not mean zero. The medians are for the 3,431 Part D prescribers listed as Medical Oncology; they describe a distribution and say nothing about conduct.
Billing to Medicare
Part B · data year 2024 · 138 billing codesPaid by Medicare
$5,992,932
Medicare patients
651
Services billed
294,906
| Condition among their Medicare patients | Relative to the most common | Share of patients |
|---|---|---|
| High blood pressure | 62% | |
| Cancer | 55% | |
| Arthritis | 36% | |
| Diabetes | 26% | |
| Chronic kidney disease | 22% | |
| Ischemic heart disease | 20% | |
| Osteoporosis | 16% | |
| Atrial fibrillation | 14% |
| Drug given in the clinic | Where | Patients | Services | Paid by Medicare |
|---|---|---|---|---|
| Injection, pembrolizumab, 1 mg J9271 | Office | 18 | 18,800 | $838,566 |
| Injection, daratumumab, 10 mg and hyaluronidase-fihj J9144 | Office | 13 | 20,160 | $790,296 |
| Injection, denosumab, 1 mg J0897 | Office | 46 | 10,860 | $222,332 |
| Injection, pegfilgrastim-pbbk (fylnetra), biosimilar, 0.5 mg Q5130 | Office | 16 | 684 | $107,115 |
| Leuprolide acetate (for depot suspension), 7.5 mg J9217 | Office | 32 | 250 | $34,659 |
| Injection, aprepitant, 1 mg J0185 | Office | 22 | 12,350 | $16,511 |
| Injection, palonosetron hcl, 25 mcg J2469 | Office | 38 | 1,930 | $1,346 |
| Injection, carboplatin, 50 mg J9045 | Office | 12 | 407 | $1,133 |
| Injection, fosaprepitant, 1 mg J1453 | Office | 12 | 7,950 | $945 |
| Injection, zoledronic acid, 1 mg J3489 | Office | 13 | 76 | $287 |
Medicare Part B only: services billed to Medicare. Rows covering fewer than 11 beneficiaries are not published. Only drugs given in the clinic are itemised here; the rest of what this provider billed is in the total above.
Payments and prescribing
First 5 of 76 products · payments 2024Two separate records. The payments come from Open Payments and the claims from Medicare. They are set side by side because they name the same product; they do not show that a payment affected a prescription.
| Product | Paid by | Related payments | Part D claims | Part B services |
|---|---|---|---|---|
| KEYTRUDA |
|
$184 | — | — |
| ENHERTU |
|
$125 | — | — |
| TIVDAK |
|
$112 | — | — |
| VERZENIO |
|
$107 | 16 | — |
| OPDIVO |
|
$102 | — | — |
A dash means Medicare published no figure for this doctor and product — fewer than 11 claims, or the product is not covered under that part — which is not the same as none. Payments are general payments only; one that names several products is split evenly between them, so an amount is payments related to the product, not money paid for it.
See more in the dashboard: 25 with a free account, all 76 with PatronRecords
731 reportedEvery payment, record by record
Date, company, amount, what it was for and the product named — filter by year, kind and company, or download as CSV.
Related records
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Doctors in Arizona
Every practitioner in the state with a reported payment.
How to read this page
What each amount means, and what it does not mean.
What this means
U.S. law requires drug and medical device manufacturers to report payments and transfers of value they make to physicians and teaching hospitals. The Centers for Medicare & Medicaid Services publishes that record each year. This page shows what was reported about this person, and nothing else.
An ownership interest is different from the other two. It is not a payment: it is a stake — shares, options, a partnership holding — that a physician or an immediate family member held in a manufacturer during that year. The figure shown is what the stake was reported to be worth.
Research payments frequently pass through a clinician to the institution running a trial, and rarely represent personal income. They should be read differently from general payments.