Who Paid My Doc
Timothy Ryken
Neurological Surgery Des Moines, IA Medical Doctor
NPI 1235122359 CMS profile 9891
1215 Pleasant St Ste 608, Ste 280, Des Moines, IA 50309
General payments
$43,777
Research payments
$14,025
Ownership & investment interest
$0
Research they led as principal investigator
$11,420
Through program year 2024, Timothy Ryken of Des Moines, IA is reported in the CMS Open Payments database as having received $43,777 across 72 general payments and $14,025 in research payments paid to them. Separately, studies naming them as principal investigator received $11,420 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 87th percentile of Neurological Surgery 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 |
|---|---|---|---|---|
| 2024 | General | $9,737 | 19 | |
| 2023 | General | $11,411 | 19 | |
| 2022 | General | $17,414 | 27 | |
| 2021 | Research | $1,050 | 2 | |
| 2020 | Research | $1,575 | 2 | |
| 2019 | General | $5,215 | 7 | |
| 2019 | Research | $11,400 | 3 |
Beside peers
- Timothy Ryken
- Neurological Surgery median
- Middle half of Neurological Surgery
- National median
In program year 2025, general payments to Timothy Ryken were reported at $0. Among 5,467 Neurological Surgery profiles paid that year, the median was $596 and the middle half received between $159 and $3,102.
Show as a table
| Year | Timothy Ryken | Neurological Surgery median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $5,215 | $582 | $138–$3,006 | $163 |
| 2020 | $0 | $294 | $76–$2,174 | $114 |
| 2021 | $0 | $387 | $105–$2,432 | $132 |
| 2022 | $17,414 | $542 | $139–$2,989 | $149 |
| 2023 | $11,411 | $534 | $145–$2,697 | $160 |
| 2024 | $9,737 | $574 | $155–$3,046 | $164 |
| 2025 | $0 | $596 | $159–$3,102 | $169 |
Breakdown
A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.
Billing to Medicare
Part B · data year 2024 · 31 billing codesPaid by Medicare
$33,031
Medicare patients
52
Services billed
115
| Condition among their Medicare patients | Relative to the most common | Share of patients |
|---|---|---|
| High blood pressure | 67% | |
| Arthritis | 56% | |
| Atrial fibrillation | 33% | |
| Depression | 29% | |
| Heart failure | 25% | |
| Chronic kidney disease | 25% | |
| COPD | 25% | |
| Diabetes | 23% |
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.
Records
79 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
Neurological Surgery in Iowa
Practitioners in the same specialty and state, ranked by reported value.
All Neurological Surgery
Everyone recorded under this specialty, nationwide.
Doctors in Iowa
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.