Colonoscopy clinicians in Worcester, Massachusetts

CMS lists 38 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 Worcester, Massachusetts (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Kyung Kim, MD	308	96%
Kelly O Callahan, MD	297	96%
Brett Hassan, MD	244	93%
Curuchi Anand, MD	229	92%
John Stagias, MD	204	89%
Brian Moquin, MD	199	89%
Khalid Aziz, MD	187	87%
Parham Safaie Semnani, MD	165	83%
Abbas Rupawala, MD	160	82%
Srikant Muddana, MD	152	80%
Tarun Patel, MD	139	77%
Matthew Petersile, MD	135	76%
Johan Boneschansker, MD	128	74%
Jean Marie Houghton, MD	127	74%
Kyle Kreitman, MD	119	71%
Steven Shields, MD	115	70%
Jonathan Taylor, MD	115	70%
Christopher Marshall, MD	113	69%
Jennifer Coukos, MD	103	65%
Krunal Patel, MD	100	64%
Prashanth Rau, MD	91	60%
Mary Flynn, MD	81	55%
Jaroslav Zivny, MD	81	55%
Savant Mehta, MD	73	51%
Abrahim Hanjar, MD	72	51%
Lauren Feld, MD	57	42%
Anupam Singh, MD	53	40%
Subin Chirayath, DO	52	40%
Javelle Wynter, MD	51	39%
Kanishka Bhattacharya, MD	47	36%
Kristen Moulton, DO	43	34%
Deepika Devuni, MD	39	31%
Neil Marya, MD	39	31%
Curtis Barry, MD	38	30%
Neil Patel, MD	37	30%
Navine Nasser-Ghodsi, MD	23	21%
Anita Krishnarao, MD	20	19%
Michael Choi, MD	13	14%

Sorted by the number of colonoscopies billed to Medicare, highest first, not by quality or skill.

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).