Who Paid My Doc
Matthias Kretzler
Nephrology Ann Arbor, MI Medical Doctor
NPI 1710990916 CMS profile 981899
1500 E Medical Center Dr, Ann Arbor, MI 48109
General payments
$70,309
Research payments
$2,250
Ownership & investment interest
$0
Research they led as principal investigator
$7,685,311
Through program year 2025, Matthias Kretzler of Ann Arbor, MI is reported in the CMS Open Payments database as having received $70,309 across 89 general payments and $2,250 in research payments paid to them. Separately, studies naming them as principal investigator received $7,685,311 in research payments, paid to institutions rather than 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. The principal-investigator line is research money paid to institutions for studies they led — not to them — and is not added to anything either.
General payments for this record sit in the 96th percentile of Nephrology profiles with reported payments. Percentile describes the distribution, not the conduct.
By program year
8 rows| Year | Kind | Relative to this record's peak year | Amount | Records |
|---|---|---|---|---|
| 2025 | General | $8,106 | 21 | |
| 2024 | General | $17,423 | 20 | |
| 2023 | General | $1,835 | 8 | |
| 2023 | Research | $2,250 | 1 | |
| 2022 | General | $8,904 | 8 | |
| 2021 | General | $11,550 | 6 | |
| 2020 | General | $13,755 | 10 | |
| 2019 | General | $8,737 | 16 |
Beside peers
- Matthias Kretzler
- Nephrology median
- Middle half of Nephrology
- National median
In program year 2025, general payments to Matthias Kretzler were reported at $8,106. Among 8,186 Nephrology profiles paid that year, the median was $310 and the middle half received between $104 and $880.
Show as a table
| Year | Matthias Kretzler | Nephrology median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $8,737 | $236 | $90–$588 | $163 |
| 2020 | $13,755 | $135 | $46–$364 | $114 |
| 2021 | $11,550 | $202 | $67–$551 | $132 |
| 2022 | $8,904 | $242 | $77–$695 | $149 |
| 2023 | $1,835 | $254 | $84–$766 | $160 |
| 2024 | $17,423 | $300 | $99–$852 | $164 |
| 2025 | $8,106 | $310 | $104–$880 | $169 |
Breakdown
A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.
Records
90 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.
Other Nephrology in Michigan
Related records
Nephrology in Michigan
Practitioners in the same specialty and state, ranked by reported value.
All Nephrology
Everyone recorded under this specialty, nationwide.
Doctors in Michigan
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.