Colonoscopy clinicians in San Jose, California

CMS lists 61 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 San Jose, California (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
David Chui, MD	417	98%
Andy Yu, MD	245	93%
Brian Levitt, MD	241	93%
Khanh Nguyen, MD	202	89%
Alexis Bayudan, MD	198	88%
Jagjit Raju, MD	185	86%
Jenny Yang, MD	174	85%
Hoan Tran, MD	166	83%
Terry Lin, DO	149	80%
Edward Huang, MD	144	79%
Huy Trinh, MD	143	78%
Geeta Kutty, MD	131	75%
Huy Nguyen, MD	130	74%
Harsha Vittal, MD	118	70%
Morgan Wong, DO	109	67%
Geoffrey Spencer, MD	106	66%
Eugenie Shieh, MD	100	64%
Sanya Wadhwa, MD	93	61%
Ann Chen, MD	76	53%
Robert Lerrigo, MD	74	52%
Treta Goyal, MD	70	50%
Elizabeth Hwang, MD	62	46%
Alice Yang, MD	62	46%
Alvaro Davila, MD	61	45%
Andrew Ho, MD	61	45%
David Limsui, MD	60	45%
Jason Williams, MD	52	40%
Irene Sonu, MD	50	39%
Paul Shao, MD	48	38%
Omeed Alipour, MD	47	37%
Angela Hsu, MD	44	35%
Michael Northcutt, MD	39	32%
Abdalla Mohamed, MD	35	29%
David Lin, MD	33	28%
Piyanka Chandra, MD	32	27%
Eduardo Da Silveira, MD	32	27%
Nimeesh Shah, MD	32	27%
Yeong An Sheu, MD	30	26%
Anahita Rezaie, MD	24	22%
Susan Cummings, MD	19	19%
Tahereh Ghaziani, MD	17	17%
Aparna Goel, MD	14	15%
Madhuri Badrinath, MD	12	14%
Renumathy Dhanasekaran, MD	11	13%
Paul Kwo, MD	11	13%
Aijaz Ahmed, MD	1-10	13% or below
Omar Bakr, MD	1-10	13% or below
David Chao, MD	1-10	13% or below
Jenny Chen	1-10	13% or below
Alan Chin, MD	1-10	13% or below
Tami Daugherty, MD	1-10	13% or below
Christopher Do, MD	1-10	13% or below
Deepti Dronamraju, MD	1-10	13% or below
Rasik Kansara, MD	1-10	13% or below
Sundip Karsan, MD	1-10	13% or below
Allison Kwong, MD	1-10	13% or below
Ranjit Makar, MD	1-10	13% or below
Luis Ocampo, MD	1-10	13% or below
Sunita Sood	1-10	13% or below
Raymond Tu, MD	1-10	13% or below
Francis Yao, 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).