Colonoscopy clinicians in Marietta, Georgia

CMS lists 118 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 Marietta, Georgia (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
William Creel, MD	383	98%
Mark Murphy, MD	209	90%
Kelly Grow, MD	190	87%
Muhamad Obideen, MD	185	86%
Mark Stern, MD	174	85%
Nandhakumar Kanagarajan, MD	170	84%
Erik Person, MD	170	84%
Marc Rosenberg, MD	164	83%
Jon Trankina, MD	162	82%
Bradley Shepherd, MD	160	82%
Summar Salim, DO	154	81%
Mark Nyce, MD	151	80%
Bruce Kalmin, MD	148	80%
Charles Nesmith, MD	146	79%
James Barlow, MD	141	78%
Neal Patel, MD	141	78%
Anna Longacre, MD	136	76%
Girish Anand, MD	135	76%
Eric Davis, MD	124	73%
Yasmin Karim, MD	123	72%
Basil Al-Awabdy, MD	113	69%
Jawad Ilyas, MD	110	68%
Joyce Peji, MD	109	67%
Jeffrey Kim, MD	106	66%
Lori Lucas, MD	106	66%
Philip Oppong-Twene, MD	106	66%
Neal Osborn, MD	106	66%
Sohail Asfandiyar, MD	104	66%
Aja McCutchen, MD	103	65%
Karim Gani, MD	102	65%
Muhammad Mansoor, MD	102	65%
Steven Carpenter, MD	101	64%
Hetal Karsan, MD	98	63%
Jyotsna Talapaneni, MD	98	63%
Sachin Goel, MD	97	63%
Judy Oh, MD	91	60%
Priti Pandya, MD	91	60%
Charles Duckworth, MD	90	60%
Justin Mendel, MD	90	60%
Ather Bukhari, MD	89	59%
Christopher Brown, MD	87	58%
Joel Camilo, MD	87	58%
Mark Edge, MD	87	58%
Joshua Foromera, MD	87	58%
Asra Batool, MD	86	58%
Anuj Manocha, MD	84	57%
Madhuri Meka, MD	84	57%
Anish Desai, MD	82	56%
Girish Pore, MD	82	56%
Gordon Robbins, MD	82	56%
Adam Weinberg, MD	82	56%
Srinivasa Ayinala, MD	81	55%
Ahmed Messallam, MD	81	55%
Patricia Sanchez Fermin, MD	79	54%
Brent Acker, MD	77	54%
Michael Frist, MD	77	54%
Earl Campbell, MD	76	53%
Mubashar Munir, MD	76	53%
Luis Galvez, MD	75	52%
Ruth Montalvo, MD	75	52%
Ritesh Shah, MD	74	52%
Barry Levitt, MD	73	51%
Sanjay Parikh, MD	71	50%
Ryan Wanamaker, MD	70	50%
Raja Sappati Biyyani, MD	69	49%
Nina Singh, MD	68	49%
Nicole Gordon, MD	66	48%
Daniel Mullady, MD	65	47%
Leah Katta, MD	64	47%
Umer Malik, MD	63	46%
Keval Patel, MD	63	46%
Ranvir Singh, MD	62	46%
Inder Tandon	60	45%
Suku George, MD	56	42%
Michael Fry, MD	55	42%
Sagar Garud, MD	55	42%
Shanil Harkins	55	42%
Jonathan Kandiah	55	42%
Swaroop Pendyala, MD	55	42%
Donald Pham	55	42%
Michael Grupka, MD	54	41%
Subodh Lal, MD	54	41%
David Finkelman, MD	53	41%
Bharat Rao, MD	53	41%
Douglas Wolf	52	40%
Akit Patel, MD	51	39%
Eric High, MD	50	39%
Ramprasad Jegadeesan, MD	50	39%
Freaw Dejenie, MD	49	38%
Jai Eun Min, MD	49	38%
Ngozi Okoro	46	36%
Xiaowen Fan, MD	45	36%
Alexander Pan, MD	45	36%
Aasim Sheikh, MD	45	36%
Long Nguyen, DO	44	35%
Edward Rydzak, MD	44	35%
Ashish Zalawadia, MD	41	33%
Karen Weiss-Schorr, MD	40	33%
Robert Eisenband	38	31%
Anupama Inaganti, MD	38	31%
Shawn Chaudhary, MD	37	31%
Seema Kumar, MD	34	29%
Jay Garten, MD	32	27%
Jung Suh, MD	27	24%
Elizabeth Craig, DO	26	23%
Alberto Fernandez Bravo, MD	26	23%
Umangi Patel, MD	24	22%
Kavita Kongara, MD	23	22%
George Aragon, MD	21	20%
Kunjal Gandhi, MD	21	20%
Nitin Parikh, MD	21	20%
Neal Patel, MD	18	18%
Khwaja Haq, MD	17	17%
Tagore Sunkara, MD	16	17%
Richard Blalock, MD	1-10	13% or below
Victoria Earl, MD	1-10	13% or below
Sohaib Hassan, MD	1-10	13% or below
Margaret Morrison, 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).