Colonoscopy clinicians in Atlanta, Georgia

CMS lists 152 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	383	98%
John Burney, MD	325	97%
David Gryboski, MD	307	96%
Agnes Han, MD	299	96%
Michael Galambos, MD	276	95%
Randy Yanda, MD	262	94%
Martin Gino Prado, MD	211	90%
Mark Murphy, MD	209	90%
Charles Stewart, MD	196	88%
Booker Dalton, MD	192	87%
Michael Perrino, MD	190	87%
Kelly Carson, MD	183	86%
Nandhakumar Kanagarajan, MD	170	84%
Erik Person, MD	170	84%
David Weinstein, MD	165	83%
Frank Lopez, MD	161	82%
Adam Levy, MD	154	81%
Jennifer Curtis, MD	150	80%
Bruce Kalmin, MD	148	80%
James Barlow, MD	141	78%
Karl Mareth, MD	140	77%
Frederick Oni, MD	138	77%
Bryan Woods, MD	137	76%
Girish Anand, MD	135	76%
David Rudolph, DO	131	75%
Aniruddh Patel, MD	130	74%
Eric Davis, MD	124	73%
David Eskreis	123	72%
Niraj Khandelwal, MD	123	72%
Kiran Kanji, MD	119	71%
Jawad Ilyas, MD	110	68%
Joyce Peji, MD	109	67%
Lori Lucas, MD	106	66%
Manan Shah, MD	104	66%
Steven Carpenter, MD	101	64%
Marc Sonenshine, MD	100	64%
William Norris, MD	99	64%
Hetal Karsan, MD	98	63%
Jyotsna Talapaneni, MD	98	63%
Rachel Mepani, MD	94	62%
Nitin Gupta, MD	91	60%
Ekinadese Aburime	90	60%
Justin Mendel, MD	90	60%
Christopher Brown, MD	87	58%
Joel Camilo, MD	87	58%
Mark Edge, MD	87	58%
Julia Massaad, MD	85	57%
Clara Antoury, MD	84	57%
Max Shapiro, MD	83	56%
Gordon Robbins, MD	82	56%
Srinivasa Ayinala, MD	81	55%
Alan Fixelle, MD	81	55%
Nikhil Kadle, MD	81	55%
Louellen Gurley, MD	79	54%
Brent Acker, MD	77	54%
Michael Frist, MD	77	54%
Virendra Joshi, MD	76	53%
Yixi Tu, MD	76	53%
Luis Galvez, MD	75	52%
Huiming Hon, MD	75	52%
David Rabin, MD	75	52%
Barry Levitt, MD	73	51%
Harini Naidu	69	49%
Steven Keilin, MD	68	49%
Kavya Sebastian, MD	68	49%
Dariush Shahsavari, MD	68	49%
Nina Singh, MD	68	49%
Robert Strauss, MD	68	49%
Osman Ali, MD	67	48%
Nicole Gordon, MD	66	48%
Keval Patel, MD	63	46%
David Quinn, MD	63	46%
Ankita Tirath, MD	63	46%
Celestine Maiki, MD	60	45%
Mohammed Razvi, MD	58	44%
William Tung, MD	58	44%
Sobia Mujtaba, MD	56	42%
Ibrahim Abubakar, MD	55	42%
Mahmoud Barrie, MD	55	42%
Jasna Beard, MD	55	42%
Sagar Garud, MD	55	42%
Sonali Sakaria, MD	54	41%
David Finkelman, MD	53	41%
Bharat Rao, MD	53	41%
Srikrishna Patnana, MD	52	40%
Douglas Wolf	52	40%
Alexis Calloway	51	39%
Patrick Marquardt, MD	50	39%
Nikrad Shahnavaz, MD	50	39%
Steven Chang, MD	49	38%
Amanda Guentner, MD	49	38%
Saurabh Chawla, MD	48	38%
Briana Lewis, MD	48	38%
Thomas McGahan	48	38%
Andrew Rhim, MD	48	38%
Heba Iskandar, MD	46	36%
Ngozi Okoro	46	36%
Michelle Clermont	45	36%
Sailaja Pisipati, MD	42	34%
Neal Dharmadhikari, MD	40	33%
Karen Weiss-Schorr, MD	40	33%
Francis Levert, MD	39	32%
Emad Qayed, MD	39	32%
Robert Eisenband	38	31%
Iboro Umana, MD	37	31%
Vamsi Kantamaneni, MD	36	30%
Joseph Gabriel, MD	35	29%
Cynthia Tran, MD	34	29%
Tanvi Dhere, MD	32	27%
Shana Kothari, MD	29	25%
Jesus Luevano, MD	28	25%
Michael Castillo, MD	27	24%
Ralph Lyons, MD	27	24%
Jung Suh, MD	27	24%
Jessica Briscoe, MD	26	23%
Kavita Kongara, MD	23	22%
Preeti Reshamwala, MD	21	20%
Camilo Acosta	19	19%
Naveen Anand, MD	17	17%
Sonya Bhaskar	17	17%
Raymond Kim, MD	17	17%
Field Willingham, MD	17	17%
Anand Jain	12	14%
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
Richard Blalock, 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
Jai Lal, 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
Bradley Mathers	1-10	13% or below
David Meyer, MD	1-10	13% or below
Rahul Nayak, MD	1-10	13% or below
Anudeep Neelam, 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
Aamir Pervez, DO	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.

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).