Who Paid My Doc
Nicholas Callahan
Oral & Maxillofacial Surgery Chicago, IL Doctor of Dentistry
NPI 1083920227 CMS profile 393998
801 S Paulina St, Chicago, IL 60612
General payments
$6,649
Research payments
$0
Ownership & investment interest
$0
Through program year 2025, Nicholas Callahan of Chicago, IL is reported in the CMS Open Payments database as having received $6,649 across 63 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 87th percentile of Oral & Maxillofacial 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 |
|---|---|---|---|---|
| 2025 | General | $2,614 | 8 | |
| 2024 | General | $390 | 6 | |
| 2023 | General | $1,517 | 19 | |
| 2022 | General | $820 | 10 | |
| 2021 | General | $213 | 3 | |
| 2020 | General | $122 | 4 | |
| 2019 | General | $972 | 13 |
Beside peers
- Nicholas Callahan
- Oral & Maxillofacial Surgery median
- Middle half of Oral & Maxillofacial Surgery
- National median
In program year 2025, general payments to Nicholas Callahan were reported at $2,614. Among 792 Oral & Maxillofacial Surgery profiles paid that year, the median was $184 and the middle half received between $61 and $541.
Show as a table
| Year | Nicholas Callahan | Oral & Maxillofacial Surgery median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $972 | $178 | $56–$584 | $163 |
| 2020 | $122 | $106 | $38–$316 | $114 |
| 2021 | $213 | $165 | $57–$511 | $132 |
| 2022 | $820 | $173 | $63–$494 | $149 |
| 2023 | $1,517 | $184 | $62–$521 | $160 |
| 2024 | $390 | $197 | $65–$603 | $164 |
| 2025 | $2,614 | $184 | $61–$541 | $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 · 44 billing codesPaid by Medicare
$27,982
Medicare patients
79
Services billed
168
| Condition among their Medicare patients | Relative to the most common | Share of patients |
|---|---|---|
| High blood pressure | 70% | |
| Arthritis | 42% | |
| Diabetes | 30% | |
| Depression | 30% | |
| Ischemic heart disease | 27% | |
| Chronic kidney disease | 24% | |
| Heart failure | 16% | |
| COPD | 16% |
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
63 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 Oral & Maxillofacial Surgery in Illinois
Walter Tatch
Oral & Maxillofacial Surgery · Gurnee, IL
Michael Miloro
Oral & Maxillofacial Surgery · Chicago, IL
Matthew Hamedani
Oral & Maxillofacial Surgery · Berwyn, IL
Jonathan Bailey
Oral & Maxillofacial Surgery · Urbana, IL
Michael Han
Oral & Maxillofacial Surgery · Chicago, IL
Ali Al-Qudsi
Oral & Maxillofacial Surgery · Chicago, IL
Related records
Oral & Maxillofacial Surgery in Illinois
Practitioners in the same specialty and state, ranked by reported value.
All Oral & Maxillofacial Surgery
Everyone recorded under this specialty, nationwide.
Doctors in Illinois
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.