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Thoracic Surgery (Cardiothoracic Vascular Surgery) in Knoxville, Tennessee

Data updated monthly · Last refresh September 2026

22 Thoracic Surgery (Cardiothoracic Vascular Surgery) providers practice in Knoxville. Listings are drawn from federal public records and are not endorsements.

Thoracic Surgery (Cardiothoracic Vascular Surgery) providers in Knoxville

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Brent Grishkin, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 769-8635
Dr. Carlo Martinez Torres, MD
Knoxville, TN · $405 in drug and device payments (2025) · Telehealth · (865) 632-5900
Dr. Christian Probst, M.D.
Knoxville, TN · $1,042 in drug and device payments (2025) · (865) 305-2495
Dr. Christina Glenn, MD
Knoxville, TN · $800 in drug and device payments (2025) · (865) 305-2495
Dr. Darryl Weiman, M.D.
Knoxville, TN · $156 in drug and device payments (2025) · (865) 647-3350
Dr. David Graham, MD
Knoxville, TN · $2,311 in drug and device payments (2025) · (865) 632-5900
Dr. Hiroshi Toyohara
Knoxville, TN · No drug or device payments recorded (2025) · (865) 558-1421
Dr. John Hance, MD, MPH
Knoxville, TN · $1,479 in drug and device payments (2025) · (865) 632-5900
Dr. John Mack, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 305-6955
Dr. John Murray, M.D.
Knoxville, TN · $1,076 in drug and device payments (2025) · (653) 056-9558
Dr. Kimberly Linden, MD
Knoxville, TN · $650 in drug and device payments (2025) · (610) 417-9229
Dr. Merideth Geib, MD
Knoxville, TN · $1,058 in drug and device payments (2025) · (865) 305-6955
Dr. Norbert Baumgartner, MD
Knoxville, TN · $904 in drug and device payments (2025) · (865) 632-5900
Dr. Raymond Dieter, MD
Knoxville, TN · $1,088 in drug and device payments (2025) · (865) 305-6955
Dr. Richard Briggs, M.D.
Knoxville, TN · No drug or device payments recorded (2025) · (865) 647-3350
Dr. Robert Helsel, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 373-0820
Dr. Sean Jordan, MD
Knoxville, TN · $1,864 in drug and device payments (2025) · (865) 305-2495
Dr. Thomas Gaines, MD
Knoxville, TN · $35 in drug and device payments (2025) · (865) 305-6955
Dr. Thomas Guy, MD
Knoxville, TN · $14,682 in drug and device payments (2025) · Telehealth · (865) 632-5900
Dr. Vijay Patil, M.D.
Knoxville, TN · No drug or device payments recorded (2025) · (865) 522-3355
Dr. William Mcalexander, MD
Knoxville, TN · $472 in drug and device payments (2025) · (865) 647-3350
Dr. William Walker, MD
Knoxville, TN · $666 in drug and device payments (2025) · (865) 647-3350

Common questions

How many Thoracic Surgery (Cardiothoracic Vascular Surgery) providers are in Knoxville, Tennessee?

There are 22 Thoracic Surgery (Cardiothoracic Vascular Surgery) providers with active NPI records practicing in Knoxville, according to federal NPPES data refreshed monthly.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Knoxville Thoracic Surgery (Cardiothoracic Vascular Surgery) across Tennessee

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.