Who Paid My Doc
Michael Keller
Colon & Rectal Surgery San Antonio, TX Medical Doctor
NPI 1659572824 CMS profile 347855
7950 Floyd Curl Dr Ste 101, Medical Tower I, San Antonio, TX 78229
General payments
$50,312
Research payments
$0
Ownership & investment interest
$0
Research they led as principal investigator
$37,331
Through program year 2025, Michael Keller of San Antonio, TX is reported in the CMS Open Payments database as having received $50,312 across 132 general payments and $0 in research payments paid to them. Separately, studies naming them as principal investigator received $37,331 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 94th percentile of Colon & Rectal 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 | $1,340 | 22 | |
| 2024 | General | $2,416 | 17 | |
| 2023 | General | $1,310 | 10 | |
| 2022 | General | $1,892 | 16 | |
| 2021 | General | $5,009 | 12 | |
| 2020 | General | $153 | 2 | |
| 2019 | General | $38,192 | 53 |
Beside peers
- Michael Keller
- Colon & Rectal Surgery median
- Middle half of Colon & Rectal Surgery
- National median
In program year 2025, general payments to Michael Keller were reported at $1,340. Among 1,481 Colon & Rectal Surgery profiles paid that year, the median was $317 and the middle half received between $109 and $1,248.
Show as a table
| Year | Michael Keller | Colon & Rectal Surgery median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $38,192 | $443 | $125–$2,179 | $163 |
| 2020 | $153 | $167 | $53–$931 | $114 |
| 2021 | $5,009 | $207 | $72–$1,272 | $132 |
| 2022 | $1,892 | $341 | $111–$1,587 | $149 |
| 2023 | $1,310 | $322 | $115–$1,420 | $160 |
| 2024 | $2,416 | $328 | $112–$1,354 | $164 |
| 2025 | $1,340 | $317 | $109–$1,248 | $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 · 6 drugsPart D claims
243
Drug cost
$5,927
Branded share of claims
49.4%
| Drug | Type | Relative to their largest | Claims | Drug cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | Brand | 77 | $4,906 | |
| Diphenoxylate-Atropine Diphenoxylate Hcl/Atropine | Brand | 16 | $370 | |
| Neomycin Sulfate | Generic | 49 | $279 | |
| Acetaminophen-Codeine Acetaminophen With Codeine | Brand | 27 | $176 | |
| Metronidazole | Generic | 61 | $164 | |
| Tramadol Hcl | Generic | 13 | $31 |
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 1,507 Part D prescribers listed as Colorectal Surgery (Proctology); they describe a distribution and say nothing about conduct.
Billing to Medicare
Part B · data year 2024 · 95 billing codesPaid by Medicare
$109,302
Medicare patients
243
Services billed
603
| Condition among their Medicare patients | Relative to the most common | Share of patients |
|---|---|---|
| High blood pressure | 75% | |
| Arthritis | 49% | |
| Cancer | 40% | |
| Diabetes | 38% | |
| Ischemic heart disease | 33% | |
| Chronic kidney disease | 28% | |
| Depression | 22% | |
| Atrial fibrillation | 20% |
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
132 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 Colon & Rectal Surgery in Texas
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Colon & Rectal Surgery · Austin, TX
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Colon & Rectal Surgery · Houston, TX
Bidhan Das
Colon & Rectal Surgery · Sugar Land, TX
Christopher De Jesus
Colon & Rectal Surgery · San Antonio, TX
Farshid Araghizadeh
Colon & Rectal Surgery · Fort Worth, TX
Jefferson Hurley
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Related records
Colon & Rectal Surgery in Texas
Practitioners in the same specialty and state, ranked by reported value.
All Colon & Rectal Surgery
Everyone recorded under this specialty, nationwide.
Doctors in Texas
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.