SurgeryVolume Find a doctor

Colonoscopy clinicians in Atlanta, Georgia

CMS lists 151 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 Atlanta, Georgia (details below).

Colonoscopy volume

Clinician Colonoscopies billed Percentile rank
William Creel, MD 403 98%
David Gryboski, MD 309 96%
John Burney, MD 305 96%
Agnes Han, MD 291 96%
Randy Yanda, MD 284 95%
Michael Galambos, MD 272 95%
Charles Stewart, MD 210 90%
Mark Murphy, MD 203 89%
Booker Dalton, MD 199 89%
Michael Perrino, MD 196 88%
Nandhakumar Kanagarajan, MD 177 85%
Erik Person, MD 171 85%
Kelly Carson, MD 166 84%
Bryan Woods, MD 161 82%
Frank Lopez, MD 154 81%
Karl Mareth, MD 154 81%
David Weinstein, MD 148 79%
Jennifer Curtis, MD 147 79%
Bruce Kalmin, MD 144 78%
Adam Levy, MD 142 78%
David Rudolph, DO 142 78%
Frederick Oni, MD 135 76%
Girish Anand, MD 133 75%
Niraj Khandelwal, MD 131 75%
Martin Gino Prado, MD 130 75%
James Barlow, MD 129 74%
Kiran Kanji, MD 129 74%
Eric Davis, MD 127 74%
David Eskreis 127 74%
Aniruddh Patel, MD 126 73%
William Norris, MD 123 72%
Joyce Peji, MD 117 70%
Steven Carpenter, MD 115 70%
Jawad Ilyas, MD 108 67%
Marc Sonenshine, MD 108 67%
Clara Antoury, MD 102 65%
Lori Lucas, MD 101 65%
Justin Mendel, MD 101 65%
Hetal Karsan, MD 97 63%
Manan Shah, MD 95 62%
Rachel Mepani, MD 92 61%
Christopher Brown, MD 91 60%
Julia Massaad, MD 91 60%
Joel Camilo, MD 89 59%
Harini Naidu 89 59%
Brent Acker, MD 88 59%
Nitin Gupta, MD 87 59%
Mark Edge, MD 84 57%
Virendra Joshi, MD 84 57%
Gordon Robbins, MD 84 57%
Alan Fixelle, MD 83 57%
Ekinadese Aburime 81 55%
Max Shapiro, MD 81 55%
Nikhil Kadle, MD 80 55%
Barry Levitt, MD 79 54%
Osman Ali, MD 73 51%
David Rabin, MD 73 51%
Srinivasa Ayinala, MD 72 51%
Huiming Hon, MD 71 50%
Michael Frist, MD 69 49%
Louellen Gurley, MD 69 49%
Jyotsna Talapaneni, MD 68 49%
Steven Keilin, MD 67 48%
David Quinn, MD 67 48%
Andrew Rhim, MD 67 48%
Luis Galvez, MD 66 47%
Francis Levert, MD 66 47%
Yixi Tu, MD 66 47%
Robert Strauss, MD 65 47%
Nicole Gordon, MD 64 46%
Patrick Marquardt, MD 64 46%
William Tung, MD 64 46%
Srikrishna Patnana, MD 63 46%
Nina Singh, MD 63 46%
Keval Patel, MD 61 45%
Bharat Rao, MD 61 45%
Mahmoud Barrie, MD 59 44%
Jasna Beard, MD 59 44%
Kavya Sebastian, MD 58 43%
Ibrahim Abubakar, MD 57 42%
Sagar Garud, MD 57 42%
Ankita Tirath, MD 57 42%
Steven Chang, MD 56 42%
Alexis Calloway 55 41%
Nikrad Shahnavaz, MD 55 41%
David Finkelman, MD 53 40%
Neal Dharmadhikari, MD 51 39%
Mohammed Razvi, MD 51 39%
Ngozi Okoro 50 38%
Dariush Shahsavari, MD 50 38%
Sobia Mujtaba, MD 49 38%
Karen Weiss-Schorr, MD 49 38%
Celestine Maiki, MD 48 37%
Heba Iskandar, MD 46 36%
Briana Lewis, MD 46 36%
Sonali Sakaria, MD 46 36%
Saurabh Chawla, MD 44 34%
Michelle Clermont 44 34%
Amanda Guentner, MD 44 34%
Douglas Wolf 44 34%
Thomas McGahan 42 33%
Emad Qayed, MD 42 33%
Michael Castillo, MD 41 32%
Sailaja Pisipati, MD 41 32%
Jesus Luevano, MD 38 30%
Robert Eisenband 37 30%
Joseph Gabriel, MD 37 30%
Vamsi Kantamaneni, MD 37 30%
Jung Suh, MD 37 30%
Cynthia Tran, MD 36 29%
Jessica Briscoe, MD 26 23%
Sonya Bhaskar 25 22%
Shana Kothari, MD 25 22%
Anudeep Neelam, MD 25 22%
Camilo Acosta 24 21%
Kavita Kongara, MD 24 21%
Ralph Lyons, MD 24 21%
Iboro Umana, MD 24 21%
Raymond Kim, MD 20 19%
Preeti Reshamwala, MD 19 18%
Naveen Anand, MD 18 18%
Aamir Pervez, DO 16 16%
Tanvi Dhere, MD 15 16%
Field Willingham, MD 15 16%
Anand Jain 13 14%
Bradley Mathers 11 13%
Chaitanya Allamneni 1-10 13% or below
Dimpal Bhakta 1-10 13% or below
Devina Bhasin, MD 1-10 13% or below
Jaydeep Bhat, MD 1-10 13% or below
Charles Bradford, MD 1-10 13% or below
Aamir Dam, MD 1-10 13% or below
Nader Dbouk, MD 1-10 13% or below
Ryan Ford, MD 1-10 13% or below
Walter Guthrie, MD 1-10 13% or below
Valerie Jagiella, MD 1-10 13% or below
Seetha Lakshmanan, MD 1-10 13% or below
Alexander Lemmer, MD 1-10 13% or below
Julia Liu, MD 1-10 13% or below
Rahul Maheshwari, MD 1-10 13% or below
David Meyer, MD 1-10 13% or below
Rahul Nayak, MD 1-10 13% or below
Kim Nguyen, MD 1-10 13% or below
Samir Parekh, MD 1-10 13% or below
Parita Patel 1-10 13% or below
Giorgio Roccaro, MD 1-10 13% or below
Sreekala Satheesh, MD 1-10 13% or below
Lance Stein, MD 1-10 13% or below
Hima Veeramachaneni, MD 1-10 13% or below
Ravi Vora, MD 1-10 13% or below
Michael Yu, 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).