Colonoscopy clinicians in Dallas, Texas

CMS lists 239 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 Dallas, Texas (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Tsauyu Lin, MD	306	96%
Stephen Hutto, MD	255	94%
Ernesto Guerra, MD	245	93%
Joseph Johnson, MD	230	92%
Richard Seidel, MD	228	92%
David Jones, DO	226	91%
Thomas Dewar, MD	224	91%
George Duvall, MD	209	90%
Natarajan Bala, MD	206	89%
Suresh Rajendran, MD	206	89%
Jeff Bullock, MD	205	89%
William Torres, MD	202	89%
Richard Otero, MD	197	88%
Antonio Serna, MD	185	86%
Umair Sohail, MD	185	86%
Feng Li, MD	180	86%
Kevin Franklin, MD	177	85%
Olusola Olofinlade, MD	177	85%
Daniel Darmadi, MD	174	85%
Harry Ojeas, MD	167	84%
Jyoti Rao, MD	166	83%
Shayne Skarda, MD	166	83%
Kai Xia, MD	163	83%
Shannon Marek, MD	160	82%
Thomas Kepczyk, MD	159	82%
Fayez Seif	159	82%
Perry Lewis, MD	154	81%
Ali Harb, MD	149	80%
John Cluley, MD	144	79%
Rajeev Jain, MD	144	79%
Nabeel Koro, MD	144	79%
Thomas Van Dinter, MD	144	79%
Rafael Amaro, MD	143	78%
Bilal Khan, MD	143	78%
Thuc Quyen Nguyen, MD	140	77%
Viralkumar Patel, MD	132	75%
David Levitan, MD	130	74%
Donna McMyler, MD	130	74%
Elizabeth Odstrcil, MD	130	74%
Angelica Belo, MD	129	74%
Junaid Siddiqui, MD	129	74%
Steven Pearce, MD	128	74%
William Deschner, MD	127	73%
Jignesh Shah, MD	127	73%
Robert Anderson, MD	124	73%
Abrar Ahmed, MD	123	72%
Osvaldo Fajardo, MD	123	72%
Gowrappala Ramesh, MD	123	72%
Sami Arslanlar, MD	122	72%
Dean Ehrlich, MD	122	72%
Syed Sadiq, MD	121	71%
Damien Mallat, MD	119	71%
Shahid Ali, MD	117	70%
Virat Dave, MD	117	70%
Jessica Garner, DO	117	70%
Carol Mallette, MD	114	69%
Michael Nunez, MD	113	69%
Arthi Kumaravel, MD	110	68%
Armond Schwartz, MD	110	68%
Sumanth Daram, MD	109	67%
Imran Sheikh, MD	107	67%
Louie Freeman, MD	105	66%
Josh George, MD	105	66%
Rassa Shahidzadeh, MD	105	66%
Neville Fernandes, MD	104	66%
Eddie Flores, MD	104	66%
Dustin Kiker, MD	104	66%
Vincent Chan, MD	102	65%
Kim Gentry, MD	101	64%
Jeffrey Smith, MD	101	64%
Esmail Elwazir, MD	97	63%
Conway Huang, MD	96	62%
Matthew Eidem, MD	95	62%
Shibu Oommen, MD	95	62%
Noel Snowberger, MD	93	61%
Gurkarminder Sandhu, MD	92	61%
Kimberly Persley, MD	91	60%
Joseph Shelton, MD	91	60%
Aris Tsiakos, MD	88	59%
James Hakert, MD	87	58%
Jachi Sun, MD	87	58%
Ali Akbar, MD	86	58%
Lisa Alvarez	85	57%
Jermaine Clarke, DO	85	57%
Katrina Bassel, MD	84	57%
Raghujit Singh, MD	84	57%
Kumar Gutta, MD	83	56%
Kenneth Yang, MD	83	56%
Xiaotuan Zhao, MD	83	56%
Shehriyar Mehershahi, MD	81	55%
Ravi Chittajallu, MD	80	55%
Jan Prazak, MD	80	55%
Amit Goyal, MD	79	54%
John Alvarez, MD	78	54%
Rajesh Putcha, MD	78	54%
Nandini Nagaraj, MD	77	54%
Joseph Kim, MD	76	53%
Angela Carollo, MD	75	52%
Melvin Lau, MD	75	52%
Sudhir Alampur, MD	74	52%
Clyde Collins, MD	74	52%
Sarita Gayle, MD	74	52%
Randal Macurak, MD	73	51%
Mark Prince, MD	73	51%
Praveen Srungaram, MD	72	51%
Jason Martin, MD	71	50%
Christopher Vesy, MD	71	50%
Sindhu Abraham, MD	70	50%
Sajneet Khangura, MD	70	50%
Michael Weisberg, MD	70	50%
Kenneth Brown, MD	69	49%
Anu Lamba, MD	68	49%
Amy Lo, MD	68	49%
Paul Tarnasky, MD	68	49%
Joseph Krill, MD	67	48%
Savreet Sarkaria, MD	67	48%
Son Do, MD	65	47%
Cristian Dominguez, MD	65	47%
Ben Kahn, MD	64	47%
Rozina Mithani-Kukreja, MD	64	47%
Neha Patel, MD	62	46%
Sangeethapriya Duraiswamy, MD	58	44%
Adnan Badr, MD	57	43%
Magdalena Espinoza, MD	57	43%
Alexander Lee, MD	57	43%
Chinemerem Okwara, MD	57	43%
Ioana Smith, MD	57	43%
Hemangi Kale, MD	56	42%
Andrea Betesh, MD	55	42%
Balu Chandra, MD	55	42%
Sowjanya Kanna, MD	55	42%
Greta Szabo, MD	54	41%
Samar Harris, MD	51	39%
Jeffrey Krieger, MD	51	39%
Rushikesh Shah, MD	49	38%
Meher Sindhoora Mavuram, MD	48	38%
Chenlu Tian, MD	48	38%
Mingjun Song, MD	47	37%
Mohammad Taheri, MD	46	36%
Juan Martinez, MD	45	36%
Kanthi Yalamanchili, MD	44	35%
Moheb Boktor, MD	43	34%
Ahmed Chatila, MD	42	34%
Asha Adams, DO	41	33%
Muhammad Baig, MD	41	33%
Christie Choi, MD	41	33%
Charles Lostak, MD	41	33%
Gerald Isbell, MD	40	33%
Namisha Thapa, DO	40	33%
Jianyi Yin, MD	40	33%
Rathan Reddy, MD	39	32%
Hendrikus Vanderveldt, MD	39	32%
Murali Alloju, MD	38	31%
Venessa Beckman, DO	38	31%
David Lee, MD	38	31%
Daniel Ellis, MD	37	31%
Sravanya Gavini, MD	37	31%
Jiexin Wang, MD	37	31%
Walter Young, MD	36	30%
David Fudman, MD	35	29%
Ravi Pavurala, MD	35	29%
Amisha Ahuja, MD	34	29%
Christopher Ramos	34	29%
Kevin Garza, MD	33	28%
Joshua Immergluck, MD	33	28%
Diana Mosquera Aguirre, MD	31	27%
Hector Nazario, MD	31	27%
Themistocles Dassopoulos, MD	30	26%
Prashant Kedia, MD	30	26%
Diane Nguyen, MD	30	26%
Rekha Reddy, MD	30	26%
Sumana Reddy, MD	30	26%
Bradley Kapten, MD	29	25%
Ali Casey Kassem, MD	29	25%
Hussien Elsiesy, MD	28	25%
Alexander Mantas, MD	28	25%
Tarek Sawas, MD	28	25%
Ernesto Llano, MD	27	24%
Katie Truitt, MD	24	22%
Markus Goldschmiedt, MD	23	22%
Xiaofei Kong, MD	22	21%
George Rateb, MD	22	21%
Emre Turer, MD	22	21%
Christian Mayorga, MD	21	20%
Josephine Ni, MD	21	20%
Neema Saraiya, MD	20	19%
Houston Bogus, MD	18	18%
Marlyn Mayo, MD	18	18%
Anh Nguyen, MD	18	18%
Brooks Cash, MD	16	17%
Sumita Mehta, MD	16	17%
Jay Horton, MD	15	16%
Dawit Jowhar, MD	15	16%
Thomas Tielleman, MD	15	16%
Lafaine Grant, MD	14	15%
Maddie Kubiliun, MD	14	15%
Lisa Vanwagner, MD	14	15%
Rodney Infante, MD	13	15%
Chanakyaram Reddy, MD	13	15%
Shannan Tujios, MD	13	15%
Ariel Aday, MD	12	14%
Parvez Mantry, MD	12	14%
Ezra Burstein, MD	11	13%
Apurva Modi, MD	11	13%
Suraj Patel, MD	11	13%
Amin Amin, MD	1-10	13% or below
Mohammad Ashfaq, MD	1-10	13% or below
Sumeet Asrani, MD	1-10	13% or below
Ranjeeta Bahirwani, MD	1-10	13% or below
Maisha Barnes, MD	1-10	13% or below
Indira Bhavsar-Burke, MD	1-10	13% or below
Jeffrey Browning, MD	1-10	13% or below
Lisa Casey, MD	1-10	13% or below
Vibhu Chittajallu, MD	1-10	13% or below
Byron Cryer, MD	1-10	13% or below
Mario Curubo, MD	1-10	13% or below
Steven Dayton, MD	1-10	13% or below
Ashton Ellison, MD	1-10	13% or below
Saleh Elwir, MD	1-10	13% or below
Manjushree Gautam, MD	1-10	13% or below
Stevan Gonzalez, MD	1-10	13% or below
Connor Griffin, MD	1-10	13% or below
Thomas Kerr, MD	1-10	13% or below
Vani Konda, MD	1-10	13% or below
Maria Lepe-Suastegui, MD	1-10	13% or below
Sarah Lieber, MD	1-10	13% or below
Jeremy Louissaint, MD	1-10	13% or below
Ashwini Mehta, DO	1-10	13% or below
Shivang Mehta, MD	1-10	13% or below
Azeez Osho, MD	1-10	13% or below
Mark Pedersen, MD	1-10	13% or below
Robert Rahimi, MD	1-10	13% or below
Srinivas Ramireddy, MD	1-10	13% or below
Stuart Spechler, MD	1-10	13% or below
Rashid Syed, MD	1-10	13% or below
Anna Tavakkoli, MD	1-10	13% or below
Howard Weiner, MD	1-10	13% or below
Jeffrey Weinstein, MD	1-10	13% or below
Jake Wilson, 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.

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 (August 18, 2026 release).