Colonoscopy clinicians in Milwaukee, Wisconsin

CMS lists 68 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 Milwaukee, Wisconsin (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Aaron Baltz, MD	457	99%
John Bosco, MD	173	85%
Brian Moloney, MD	166	84%
Maqsood Khan, MD	165	83%
William Blosky, MD	164	83%
Aboud Affi, MD	162	83%
Steven Lipscomb, MD	145	79%
Nathaniel Jest, DO	142	78%
Erica Samuel	141	78%
Nalini Guda, MD	137	77%
Chetan Mittal, MD	126	73%
Rajesh Sharma, MD	126	73%
Nilay Kumar, MD	125	73%
Alex Ulitsky, MD	124	73%
Srihari Ramanujam, MD	120	71%
Tarun Sharma, MD	118	71%
Hassaan Zia, MD	112	69%
Tarun Kaura, MD	109	67%
Eugene Kligman, MD	106	66%
Vasanth Siddalingaiah, MD	106	66%
Jimmy Kim, MD	104	66%
Sunil Kapur, MD	101	65%
Ricardo Li, MD	100	64%
Daniel Stein, MD	96	63%
Chad Stepke, MD	95	62%
Harjot Sidhu, MD	94	62%
Matthew Mohorek, MD	93	61%
Syed Hussain, MD	91	60%
Jamal Qureshi, MD	90	60%
Jacob Laine, MD	89	59%
Yuchen Wang, MD	83	57%
Julia Leo, MD	76	53%
Sotirios Vasilopoulos, MD	76	53%
Dilpesh Agrawal, MD	74	52%
Adam Van Huis, MD	70	50%
Asad Jehangir	64	46%
Benson Massey, MD	62	45%
Patrick Sanvanson, MD	58	43%
Venelin Kounev, MD	57	42%
Gokulakrishnan Balasubramanian, MD	53	40%
Hanna Bayisa	52	40%
Maurice Chung, MD	50	38%
Peter Stanko, MD	49	38%
Mitchell Manthey, MD	48	37%
Ling Mei, MD	47	36%
Emilie Regner, MD	43	34%
Francis Edeani, MD	42	33%
Kia Saeian, MD	41	32%
Keely Browning, MD	40	32%
W Sobin, MD	39	31%
Abdullah Fayyad, MD	38	30%
Syed Rizvi, MD	37	30%
Poonam Beniwal-Patel, MD	35	28%
Jason Browne, MD	35	28%
Phillip Chisholm, MD	28	24%
Sahibzada Latif, MD	28	24%
Matthew Peller, MD	28	24%
Achuthan Sourianarayanane, MD	28	24%
Abubaker Abdalla, MD	27	23%
Srivats Madhavan, MD	27	23%
Thomas Puetz, MD	25	22%
Kulwinder Dua, MD	20	19%
Rituparna Medda, DO	20	19%
Zachary Smith, DO	14	15%
Jose Franco, MD	1-10	13% or below
Hussam Sabbagh, MD	1-10	13% or below
Reza Shaker, MD	1-10	13% or below
Annie Shergill, 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 (October 2, 2026 release).