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Colonoscopy clinicians in Houston, Texas

CMS lists 258 clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice who have billed Medicare for at least one colonoscopy and practice in Houston, Texas (details below).

Colonoscopy volume

Clinician Colonoscopies billed Percentile rank
Ahmad Farooq, MD 1,400 99%
Valeska Balderas, MD 780 99%
Bharat Pothuri, MD 759 99%
Uma Mohan, MD 480 99%
Howard Hamat, MD 294 96%
Peter Lang, MD 259 94%
Muhammad Farooqui, MD 254 94%
Natarajan Bala, MD 236 92%
Hashim Khandwalla, MD 228 92%
Kevin Kline, MD 224 91%
Suresh Rajendran, MD 216 90%
Cole Thomson, MD 216 90%
Matthew Spinn, MD 213 90%
Nizam Meah, MD 210 90%
Darshan Anandu, MD 206 89%
Daniel Darmadi, MD 185 87%
Steven Ugbarugba, MD 181 86%
Vikram Jayanty, MD 175 85%
Jyoti Rao, MD 170 84%
John Dugan, MD 169 84%
Phillip Ge, MD 169 84%
Nadim Jafri, MD 169 84%
James Maher, MD 169 84%
Yassir Ashraf, MD 166 84%
Jigar Patel, MD 163 83%
Altaib Al Yassin, DO 162 83%
Peter Schwarz, MD 158 82%
Michel Kafrouni, MD 153 81%
Frank Meriano, MD 153 81%
Daniel Ball, MD 150 80%
John Clemmons, MD 149 80%
Zeid Karadsheh, MD 148 79%
Gurunath Reddy, MD 147 79%
Katherine Nguyen, MD 146 79%
Ali Aamar, MD 143 78%
Vijaya Kaila, MD 143 78%
Steven Frachtman, MD 141 78%
Mohamed Mahmoud, MD 141 78%
Mouhamad Al-Sabbagh, MD 140 77%
Harry Ojeas, MD 138 77%
Valentine Millien, MD 128 74%
Sridhar Surapaneni 127 74%
Jignesh Shah, MD 126 73%
David Wolf, MD 125 73%
Gowrappala Ramesh, MD 123 72%
Ravi Mani, MD 121 72%
Nagasaranya Addepally, MD 119 71%
Brian Kaplan, MD 118 71%
Matthew Tompson, MD 118 71%
Julien Fahed, MD 115 70%
Thien-Bao Nguyen, MD 115 70%
Krishnamurthy Shivshanker, MD 115 70%
Umair Siddiqui, MD 115 70%
Sunil Dacha, MD 112 69%
Jachi Sun, MD 112 69%
Samir Nath, MD 110 68%
Brian Douglas, MD 109 67%
Tojo Thomas, MD 105 66%
Adrianne Van Norman, DO 102 65%
Shahid Ali, MD 99 64%
Marc Catalano, MD 99 64%
George Triadafilopoulos, MD 99 64%
Prasun Shah, MD 98 63%
Lavanya Viswanathan, MD 97 63%
Sumanth Daram, MD 95 62%
Isaac Raijman, MD 95 62%
Brick Alva, MD 94 62%
Shawn Gurwara, MD 93 61%
Maria Jarbrink-Sehgal, MD 92 61%
Ihsan Al Bayati, MD 91 60%
Gabriel Lee, MD 89 59%
Rashid Khan, MD 88 59%
Ahmad Pacha, MD 88 59%
Samir Ashfaq, MD 86 58%
Prianka Singapura, MD 85 58%
Gottumukkala Raju, MD 84 57%
Dang Nguyen, MD 83 57%
Maninder Guram, MD 80 55%
Yinghong Wang, MD 80 55%
Anam Khan, MD 77 53%
Kashif Khan, MD 77 53%
Neha Mathur, MD 77 53%
Joseph Krill, MD 75 52%
Johanna Chan, MD 74 52%
Mehnaz Shafi, MD 74 52%
Marta Davila, MD 73 51%
Anusha Shirwaikar Thomas, MD 73 51%
Hamza Aziz, MD 72 51%
Manish Rungta, MD 71 50%
Rachel Schiesser, MD 71 50%
Victor Yang, MD 70 50%
Kavin Kanthasamy, MD 68 49%
Shashideep Singhal, MD 68 49%
Nikhil Inamdar, MD 67 48%
Joseph Galati 65 47%
Ahana Sen, MD 64 46%
David Richards, MD 63 46%
Madhav Desai, MD 62 45%
Fernando Urrutia, MD 62 45%
David Nemoto, MD 61 45%
Hani Zamil, MD 61 45%
Dzifaa Lotsu, MD 60 44%
Cristian Dominguez, MD 59 44%
Seifeldin Hakim, MD 58 43%
Rehman Sheikh, MD 58 43%
Shaheer Siddiqui, MD 58 43%
William Ross, MD 57 42%
Abdullah Shaikh, MD 57 42%
Emmanuel Coronel Cordero, MD 56 42%
Madhukar Kaw, MD 55 41%
Thomas McCarty, MD 55 41%
Subhajit Mukherjee, MD 55 41%
George Wahba, MD 55 41%
Alberto Barroso, MD 54 41%
Nanfu Deng, MD 54 41%
Mohammed Alkhero, MD 53 40%
Luigi Ricciardiello, MD 53 40%
Harshinie Amaratunge, MD 52 40%
Jaspaul Azad, MD 52 40%
Saurabh Chandan, MD 52 40%
Selvi Thirumurthi, MD 52 40%
Ethan Miller, MD 51 39%
Sardar Khan, MD 50 38%
Pritesh Mutha, MD 50 38%
Feenalie Patel, MD 48 37%
Wasseem Skef, MD 48 37%
Andrea Duchini, MD 47 36%
Charles Meade, MD 47 36%
Moazzam Sana, DO 47 36%
Farah Harmouch, MD 46 36%
Neeharika Kalakota, MD 46 36%
Ranya Selim, MD 46 36%
Malcolm Irani, MD 45 35%
Thuan Nguyen, MD 45 35%
Richard Robbins, MD 45 35%
Andrew Dupont, MD 44 34%
Ronald Samuel, MD 44 34%
Stalin Subramanian, MD 44 34%
Deepika Satish, MD 43 34%
Suneal Agarwal, MD 42 33%
Syed Jafri, MD 42 33%
Babatunde Adeyefa, MD 41 32%
Victor Ankoma Sey, MD 41 32%
Vincent Nguyen, MD 41 32%
Jordan Sparkman, MD 41 32%
Laith Numan, MD 40 32%
Ronald Colman, MD 39 31%
Farid Abushamat, MD 38 30%
Nabil Mansour, MD 38 30%
Michael Stavinoha, MD 38 30%
David Szafron, MD 38 30%
Muhammad Zafar, MD 38 30%
Manoop Bhutani, MD 37 30%
Mohamad Muayad, MD 37 30%
Tanima Jana, MD 36 29%
Hao Chi Zhang, MD 36 29%
Elizabeth Holt, MD 35 28%
Lan Wang, MD 35 28%
Rollin George, MD 34 28%
Richa Shukla, MD 34 28%
Sudhanshu Gogia, MD 33 27%
Brian Weston, MD 33 27%
Sagar Joshi, MD 32 27%
Bharat Puchakayala, MD 32 27%
Nirav Thosani, MD 32 27%
Jessica Bernica, MD 31 26%
Barani Mayilvaganan, MD 31 26%
Sohaib Faruqi, MD 30 25%
Hari Pokala, MD 30 25%
Waqar Qureshi, MD 30 25%
Shahrooz Rashtak, MD 30 25%
Nizar Ramzan, MD 29 25%
Gabriel Sandoval, MD 29 25%
Chukwuma Egwim, MD 26 23%
Gulchin Ergun, MD 26 23%
Kristeen Ogunsanwo, MD 26 23%
Asha Kuruvila, MD 25 22%
Robert Sealock, MD 25 22%
Nyla Hazratjee, MD 23 21%
Jeffrey Lee, MD 23 21%
Ryan Barrientos, MD 22 20%
Omar Jilani, MD 22 20%
Mohamed Othman, MD 22 20%
Rishi Chadha, MD 21 20%
Reena Chokshi, MD 20 19%
Malan Shiralkar, MD 20 19%
Fred Sutton, MD 20 19%
Bincy Abraham, MD 19 18%
Alan Glombicki, MD 19 18%
Ikenna Emelogu, MD 18 18%
Kalpesh Patel, MD 18 18%
Mustafa Arain, MD 17 17%
Christopher Fan, MD 17 17%
Tugrul Purnak, MD 17 17%
Vaibhav Wadhwa, MD 17 17%
Fares Ayoub, MD 16 16%
Ryan Goldstein, MD 16 16%
Faraz Bishehsari, MD 15 16%
Michelle Jones-Pauley, DO 15 16%
Meera Avila, MD 14 15%
Rawan Dayah, MD 14 15%
Mairin Joseph Talreja, MD 14 15%
Jessica Lin, MD 14 15%
Victor Machicao, MD 14 15%
Angela McGee, MD 14 15%
Shaleen Vasavada, MD 12 14%
Alicia Bordon, MD 11 13%
Roy Davee, MD 11 13%
Wasif Abidi, MD 1-10 13% or below
Pedro Aquino, MD 1-10 13% or below
Willy Aramayo, MD 1-10 13% or below
Pedro Arguello, MD 1-10 13% or below
Maya Balakrishnan, MD 1-10 13% or below
Tamneet Basra, MD 1-10 13% or below
Daniel Burkholder, MD 1-10 13% or below
Sheela Chandra, MD 1-10 13% or below
Terence Chang, MD 1-10 13% or below
Yiu-Ting Chiu, MD 1-10 13% or below
Kati Choi, MD 1-10 13% or below
George Cholankeril, MD 1-10 13% or below
Tushar Dharia, MD 1-10 13% or below
Hashem El-Serag, MD 1-10 13% or below
Steven Fein, MD 1-10 13% or below
Greg Galler, MD 1-10 13% or below
Milena Gould, MD 1-10 13% or below
Ruben Hernaez Rodriguez, MD 1-10 13% or below
Jason Hou, MD 1-10 13% or below
Ayub Hussain, MD 1-10 13% or below
Prasun Jalal, MD 1-10 13% or below
Faiz Javed, DO 1-10 13% or below
Mitzi Jimenez, MD 1-10 13% or below
Jeffrey Juneau, MD 1-10 13% or below
Hyon Kang, DO 1-10 13% or below
Sudha Kodali, MD 1-10 13% or below
Salim Lakhani, MD 1-10 13% or below
Sahil Mittal, MD 1-10 13% or below
Hamidreza Moein, MD 1-10 13% or below
Akshata Moghe, MD 1-10 13% or below
Wasay Mohajir, DO 1-10 13% or below
Yamini Natarajan, MD 1-10 13% or below
Muhammed Nathani, MD 1-10 13% or below
Hung Nguyen, MD 1-10 13% or below
Mayur Parepally, MD 1-10 13% or below
Kavish Patidar, DO 1-10 13% or below
Sheila Rastegari, DO 1-10 13% or below
Hemant Roy, MD 1-10 13% or below
Nayan Shah, MD 1-10 13% or below
Rabia Shakeel, MD 1-10 13% or below
Jennifer Shroff, MD 1-10 13% or below
Homayon Sidiq, MD 1-10 13% or below
Jared Sninsky, MD 1-10 13% or below
Sruthi Kapliyil Subramanian, MD 1-10 13% or below
Mimi Tan, MD 1-10 13% or below
Qingguo Tao, MD 1-10 13% or below
Tony Trang, MD 1-10 13% or below
David Victor, MD 1-10 13% or below
Karen Woods, MD 1-10 13% or below
Daniel Zhang, MD 1-10 13% or below

Sorted by the number of colonoscopies billed to Medicare, highest first, not by quality or skill. CMS suppresses counts between 1 and 10 to protect patient privacy and publishes the range instead.

Reported in previous releases

CMS does not report a colonoscopy volume for these clinicians in the October 2, 2026 release. Their pages show figures from earlier releases.

Understanding CMS Data

CMS's "Colonoscopy" category combines specific billing codes for colonoscopy to calculate the number of times each clinician billed Medicare for a "Colonoscopy." These include screening colonoscopy, diagnostic colonoscopy, and colonoscopy with biopsy or polyp removal. CMS's list also includes flexible sigmoidoscopy and laparoscopic appendectomy, so a clinician's count may include those procedures. CMS counts one procedure per patient per day, so a colonoscopy that included both a biopsy and a polyp removal counts once. CMS reports only procedures that clinicians billed to Original Medicare and Medicare Advantage. Therefore, CMS's procedure volume data does not include procedures that clinicians may have performed on patients who have other health care coverage (e.g., commercial insurance, self-pay, or the VA). Billing variation and coding errors can also affect CMS's data. Therefore, the number of procedures that CMS reports for a clinician may be higher or lower than the actual number of colonoscopies a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice (as reported to Medicare) are presented.

Source: Centers for Medicare & Medicaid Services (October 2, 2026 release).