Who Paid My Doc
Adnan Siddiqui
Neurological Surgery Williamsville, NY Medical Doctor
NPI 1558325951 CMS profile 25048
40 George Karl Blvd, Williamsville, NY 14221
General payments
$1,513,005
Research payments
$53,895
Ownership & investment interest
$66,382,577
Research they led as principal investigator
$1,774,341
Through program year 2025, Adnan Siddiqui of Williamsville, NY is reported in the CMS Open Payments database as having received $1,513,005 across 400 general payments and $53,895 in research payments paid to them. Separately, studies naming them as principal investigator received $1,774,341 in research payments, paid to institutions rather than to them. They also declared ownership or investment interests valued at $66,382,577 across 25 holdings.
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 99th percentile of Neurological Surgery profiles with reported payments. Percentile describes the distribution, not the conduct.
By program year
20 rows| Year | Kind | Relative to this record's peak year | Amount | Records |
|---|---|---|---|---|
| 2025 | General | $185,609 | 81 | |
| 2025 | Research | $1,900 | 1 | |
| 2024 | General | $110,347 | 77 | |
| 2023 | General | $96,979 | 46 | |
| 2023 | Research | $250 | 1 | |
| 2022 | General | $97,489 | 46 | |
| 2022 | Research | $200 | 1 | |
| 2021 | General | $76,329 | 54 | |
| 2021 | Research | $21,520 | 4 | |
| 2020 | General | $397,059 | 35 | |
| 2020 | Research | $24,525 | 13 | |
| 2019 | General | $549,193 | 61 | |
| 2019 | Research | $5,500 | 3 | |
| 2025 | Ownership | $12,441,139 | 5 | |
| 2024 | Ownership | $11,307,039 | 5 | |
| 2023 | Ownership | $10,042,541 | 4 | |
| 2022 | Ownership | $11,647,771 | 3 | |
| 2021 | Ownership | $14,660,443 | 3 | |
| 2020 | Ownership | $3,449,735 | 3 | |
| 2019 | Ownership | $2,833,908 | 2 |
Beside peers
- Adnan Siddiqui
- Neurological Surgery median
- Middle half of Neurological Surgery
- National median
In program year 2025, general payments to Adnan Siddiqui were reported at $185,609. 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 | Adnan Siddiqui | Neurological Surgery median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $549,193 | $582 | $138–$3,006 | $163 |
| 2020 | $397,059 | $294 | $76–$2,174 | $114 |
| 2021 | $76,329 | $387 | $105–$2,432 | $132 |
| 2022 | $97,489 | $542 | $139–$2,989 | $149 |
| 2023 | $96,979 | $534 | $145–$2,697 | $160 |
| 2024 | $110,347 | $574 | $155–$3,046 | $164 |
| 2025 | $185,609 | $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 · 61 billing codesPaid by Medicare
$165,675
Medicare patients
846
Services billed
1,396
| Condition among their Medicare patients | Relative to the most common | Share of patients |
|---|---|---|
| High blood pressure | 75% | |
| Ischemic heart disease | 50% | |
| Arthritis | 49% | |
| Chronic kidney disease | 41% | |
| Diabetes | 40% | |
| Heart failure | 32% | |
| Atrial fibrillation | 30% | |
| COPD | 28% |
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
2 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 |
|---|---|---|---|---|
| OCTAGAM IMMUNE GLOBULIN (HUMAN) |
|
$20 | — | — |
| PANZYGA |
|
$20 | — | — |
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.
Records
423 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 Neurological Surgery in New York
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Leo Hopkins
Neurological Surgery · Buffalo, NY
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Alejandro Berenstein
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Darryl Lau
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Related records
Neurological Surgery in New York
Practitioners in the same specialty and state, ranked by reported value.
All Neurological Surgery
Everyone recorded under this specialty, nationwide.
Doctors in New York
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.