Colon & Rectal Surgery in Houston, Texas
Data updated monthly · Last refresh September 2026
42 Colon & Rectal Surgery providers practice in Houston, and 79% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Colon & Rectal Surgery providers in Houston
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. Aakash Gajjar, M.D.Houston, TX · $395 in drug and device payments (2025) ·
(281) 994-7403 Dr. Abhineet Uppal, M.D.Houston, TX · No drug or device payments recorded (2025) · Telehealth ·
(713) 792-6161 Dr. Anne Le, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 772-1200 Dr. Atif Iqbal, MDHouston, TX · $20 in drug and device payments (2025) · Telehealth ·
(713) 798-4321 Dr. Christina Warner, MDHouston, TX · $111 in drug and device payments (2025) ·
(462) 921-4703 Dr. Craig Messick, M.D.Houston, TX · No drug or device payments recorded (2025) · Telehealth ·
(713) 792-6161 Dr. David Thompson, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 790-9250 Dr. Diego Marines Copado, M.D.Houston, TX · $177,567 in drug and device payments (2025) ·
(281) 737-8465 Dr. Donald Butts, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(281) 440-7495 Dr. Eric Haas, M.D.Houston, TX · $804 in drug and device payments (2025) · Telehealth ·
(713) 441-5155 Dr. Erik Askenasy, M.D.Houston, TX · $14,059 in drug and device payments (2025) ·
(713) 486-4600 Dr. Gary Skakun, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 790-9250 Dr. George Chang, M.D.Houston, TX · No drug or device payments recorded (2025) · Telehealth ·
(713) 792-6161 Dr. H Bailey, M.D.Houston, TX · $269 in drug and device payments (2025) ·
(713) 790-9250 Dr. Jean Knapps, M.D.Houston, TX · $277 in drug and device payments (2025) ·
(815) 831-3002 Dr. Jean Paul Lefave, M.D.Houston, TX · $10,864 in drug and device payments (2025) · Telehealth ·
(713) 790-0600 Dr. Jeffrey Van Eps, M.D.Houston, TX · $727 in drug and device payments (2025) ·
(713) 486-4600 Dr. Jeongyoon Moon, MDHouston, TX · $3,232 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Jorge Zarate Rodriguez, MD Dr. Joseph Cali, M.D.Houston, TX · $857 in drug and device payments (2025) ·
(713) 464-1758 Dr. Joshua Coursey, M.D.Houston, TX · $5,012 in drug and device payments (2025) · Telehealth ·
(713) 790-0600 Dr. Justin Kim, MDHouston, TX · No drug or device payments recorded (2025) ·
(281) 904-0144 Dr. Kelly Gilmore, MDHouston, TX · $80 in drug and device payments (2025) · Telehealth ·
(713) 790-9250 Dr. Konya Keeling-johnson, MDHouston, TX · $258 in drug and device payments (2025) ·
(713) 363-9936 Dr. Lisa Chen, M.D.Houston, TX · $842 in drug and device payments (2025) ·
(281) 440-7495 Dr. Marianne Cusick, MD, MSPHHouston, TX · $5,242 in drug and device payments (2025) · Telehealth ·
(713) 486-4600 Dr. Mark Pidala, M.D.Houston, TX · $803 in drug and device payments (2025) ·
(713) 486-4650 Dr. Matthew Weaver, MDHouston, TX · $1,774 in drug and device payments (2025) · Telehealth ·
(713) 500-7216 Dr. Michael Snyder, M.D.Houston, TX · $942 in drug and device payments (2025) ·
(713) 790-9250 Dr. Omar Madriz, M.D.Houston, TX · $887 in drug and device payments (2025) ·
(713) 486-4680 Dr. Punam Amin, MDHouston, TX · $103 in drug and device payments (2025) · Telehealth ·
(832) 957-6500 Dr. Rachel Ellsworth, M.DHouston, TX · $259 in drug and device payments (2025) · Telehealth ·
(832) 522-3240 Dr. Robert Kress, D.O.Houston, TX · $382 in drug and device payments (2025) ·
(832) 325-7125 Dr. Scott Mcknight, MDHouston, TX · $6,387 in drug and device payments (2025) ·
(713) 790-9250 Dr. Stephen ChiangHouston, TX · $280 in drug and device payments (2025) ·
(832) 220-3016 Dr. Steven Capece, M.D.Houston, TX · $3,247 in drug and device payments (2025) ·
(713) 486-4600 Dr. Tareq Kamal, M.DHouston, TX · $112 in drug and device payments (2025) ·
(832) 522-3240 Dr. Theodoros Voloyiannis, M.D.Houston, TX · $5,780 in drug and device payments (2025) ·
(832) 377-3770 Dr. Tianming Liu, M.D.Houston, TX · No drug or device payments recorded (2025) · Telehealth ·
(713) 790-0600 Dr. Tsuyoshi Konishi, MD, PHDHouston, TX · $23,724 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Common questions
How many Colon & Rectal Surgery providers are in Houston, Texas?There are 42 Colon & Rectal Surgery providers with active NPI records practicing in Houston, according to federal NPPES data refreshed monthly.
How many Colon & Rectal Surgery providers in Houston received drug or device company payments?33 of 42 (79%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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.
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