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Gastroenterology in Knoxville, Tennessee

Data updated monthly · Last refresh September 2026

45 Gastroenterology providers practice in Knoxville, and 67% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Gastroenterology 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. Anabel Rodriguez Loya, DO
Knoxville, TN · $1,908 in drug and device payments (2025) · (865) 305-6570
Dr. Barry Maves, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Benjamin Dalton, MD
Knoxville, TN · $1,831 in drug and device payments (2025) · (865) 305-6570
Dr. Bergein Overholt, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Carlos Rollhauser, MD
Knoxville, TN · $33,357 in drug and device payments (2025) · (865) 305-6570
Dr. Charles O'connor, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Connie Mcmahan, ADVANCED PRACTICE NU
Knoxville, TN · No drug or device payments recorded (2025) · (865) 544-6570
Dr. Dean Conley, M.D.
Knoxville, TN · No drug or device payments recorded (2025) · (865) 531-8294
Dr. Dhruvil Radadiya, MD
Knoxville, TN · $418 in drug and device payments (2025) · (865) 305-6570
Dr. Dushyant Dahiya, MD
Knoxville, TN · $408 in drug and device payments (2025) · (865) 531-4724
Dr. Floyd Porter, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Gary Spiegelman, M.D.
Knoxville, TN · No drug or device payments recorded (2025) · (865) 531-8632
Dr. George Obeng
Knoxville, TN · $948 in drug and device payments (2025) · (865) 305-6570
Dr. Harold Silver, M.D.
Knoxville, TN · $802 in drug and device payments (2025) · (865) 531-4724
Dr. Jason Huffman, M.D.
Knoxville, TN · $587 in drug and device payments (2025) · (865) 588-5121
Dr. Jeffrey Brown, MD
Knoxville, TN · $447 in drug and device payments (2025) · (865) 523-6418
Dr. Jeffrey Gilbert, MD
Knoxville, TN · $2,772 in drug and device payments (2025) · (865) 588-5121
Dr. John Haydek, MD
Knoxville, TN · $239 in drug and device payments (2025) · (865) 588-5121
Dr. John Moore, M.D.
Knoxville, TN · $1,044 in drug and device payments (2025) · (865) 588-5121
Dr. John Stancher, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 305-6570
Dr. Juan Benitez, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 539-5372
Dr. Mahmoud Bayoumi, M.D., M.P.H.
Knoxville, TN · $2,435 in drug and device payments (2025) · (865) 305-6570
Dr. Maria Newman, MD
Knoxville, TN · $1,506 in drug and device payments (2025) · (865) 588-5121
Dr. Mark Anderson, MD
Knoxville, TN · $117 in drug and device payments (2025) · (865) 544-6570
Dr. Mark Jackson, MD
Knoxville, TN · $72 in drug and device payments (2025) · (865) 523-6418
Dr. Meade Edmunds, MD
Knoxville, TN · $2,974 in drug and device payments (2025) · (865) 851-7771
Dr. Morris Barocas, M.D.
Knoxville, TN · No drug or device payments recorded (2025) · (865) 218-7444
Dr. Muhammed Iqbal, MD
Knoxville, TN · $181 in drug and device payments (2025) · (865) 523-6418
Dr. Omar Tageldin, MD
Knoxville, TN · $1,286 in drug and device payments (2025) · (865) 305-6570
Dr. Raj Narayani, MD
Knoxville, TN · $50,764 in drug and device payments (2025) · (865) 588-5121
Dr. Ramanujan Samavedy, M.D.
Knoxville, TN · $1,072 in drug and device payments (2025) · (865) 588-5121
Dr. Ravi Ghanta, M.D
Knoxville, TN · $19 in drug and device payments (2025) · (865) 373-7975
Dr. Raymond Hargrove, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 544-0406
Dr. Richard Farris, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Robert Pollack, MD
Knoxville, TN · $482 in drug and device payments (2025) · (865) 523-6418
Dr. Samuel Purkey
Knoxville, TN · $2,014 in drug and device payments (2025) · (865) 305-9340
Dr. Sangeeta Gulati, MD
Knoxville, TN · $1,527 in drug and device payments (2025) · (865) 305-6570
Dr. Sarkis Chobanian, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Scott Wilhoite, M.D.
Knoxville, TN · $24 in drug and device payments (2025) · (865) 588-5121
Dr. Stanley Miller, MD
Knoxville, TN · No drug or device payments recorded (2025) · (865) 588-5121
Dr. Steedman Sarbah, M.D.
Knoxville, TN · No drug or device payments recorded (2025) · (865) 373-7975
Dr. Steven Bindrim, MD
Knoxville, TN · $428 in drug and device payments (2025) · (865) 588-5121
Dr. Tejal Mistry, MD
Knoxville, TN · $1,081 in drug and device payments (2025) · (865) 588-5121
Dr. Thomas Young, MD
Knoxville, TN · $1,027 in drug and device payments (2025) · (865) 305-9595
Dr. William Ergen, M.D.
Knoxville, TN · $735 in drug and device payments (2025) · (865) 588-5121

Conditions Gastroenterology providers in Knoxville, Tennessee commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Gastroenterology providers are in Knoxville, Tennessee?

There are 45 Gastroenterology providers with active NPI records practicing in Knoxville, according to federal NPPES data refreshed monthly.

How many Gastroenterology providers in Knoxville received drug or device company payments?

30 of 45 (67%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Gastroenterology providers in Knoxville treat?

Gastroenterology providers in Knoxville commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.

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 Gastroenterology across Tennessee

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.