Dr. Thomas O'Brien, MD
What this data tells you about Dr. O'Brien
Dr. Thomas O'Brien is a critical care medicine specialist in Kissimmee, FL, with 19 years of NPI registration. Based on federal Medicare data, Dr. O'Brien performed 412 Medicare services across 381 unique beneficiaries.
Between the years covered by Open Payments, Dr. O'Brien received a total of $238,282 from 47 pharmaceutical and/or device companies across 806 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in critical care medicine. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. O'Brien is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
110 | $57 | $110 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
106 | $83 | $162 |
| Spirometry test before and after medication A test that measures the amount of air you can exhale and the speed of your breathing before and after taking a medication. |
38 | $26 | $150 |
| Lung volume test using sensors A test that measures the amount of air in the lungs using sensors. |
38 | $38 | $150 |
| Pulmonary gas exchange test A test to examine how well the lungs exchange gases. |
37 | $39 | $150 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
15 | $66 | $165 |
| Artery puncture collection of blood sample | 14 | $20 | $72 |
| Blood gas test with oxygen saturation A test that measures the levels of gases in the blood, including oxygen saturation. |
14 | $75 | $245 |
| Red blood cell concentration measurement A laboratory test that measures the concentration of red blood cells in the blood. |
14 | $2 | $43 |
| Hemoglobin blood test A blood test that measures the amount of hemoglobin, the protein in red blood cells that carries oxygen. |
14 | $2 | $43 |
| Exercise-induced lung stress test A test performed to evaluate how the lungs function during physical exertion. It helps identify breathing difficulties or lung conditions that occur specifically when exercising. |
12 | $16 | $125 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
The majority of payments (92%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in critical care medicine and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 2% for critical care medicine in FL.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. O'Brien is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 2% of FL peers, with 19 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. O'Brien experienced with office visit, established patient (20-29 min)?
Does Dr. O'Brien receive payments from pharmaceutical companies?
How do Dr. O'Brien's costs compare to other critical care medicines in Kissimmee?
What does Data Coverage mean?
Is this data up to date?
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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