Colonoscopy clinicians in Seattle, Washington

CMS lists 104 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 Seattle, Washington (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Pornchai Leelasinjaroen, MD	207	90%
Harry Teicher, MD	171	85%
Michele Pulling, MD	128	74%
Qing Zhang, MD	113	69%
Leslie Price, MD	112	69%
Vikram Anand, MD	108	67%
Gautam Mankaney, MD	99	64%
Nanda Venu, MD	94	62%
Stephen Rulyak, MD	91	60%
Christopher Dire, MD	87	59%
Alina Wong, MD	83	57%
Glen Lutchman, MD	82	56%
Peggy Headstrom, MD	81	55%
Craig Pepin, MD	81	55%
Lulu Iles Shih, MD	80	55%
Samuel Rosenfeld, MD	77	53%
Timothy Zisman, MD	75	52%
Darik Taniguchi, MD	74	52%
Shayan Irani, MD	68	49%
Gregory Bernstein, MD	66	47%
Michael Owens, MD	66	47%
Seyed Jalali, MD	63	46%
Pierre Blais, MD	59	44%
Edward Cuaresma, MD	59	44%
Praveen Guturu, MD	59	44%
Kunjali Padhya, MD	59	44%
Corey Saraceni, MD	59	44%
Justin Goodman, MD	58	43%
Philip Delich, MD	57	42%
Gorav Kalra, MD	54	41%
Wataru Tamura, MD	54	41%
Ashley Thompson, MD	53	40%
Stanley Lee, MD	52	40%
Otto Lin, MD	52	40%
Jasmine Zia, MD	51	39%
Johannes Koch, MD	50	38%
Christopher Damman, MD	49	38%
Jennifer Kennedy, MD	49	38%
Sravanthi Parasa, MD	49	38%
Nina Saxena, MD	49	38%
Naomi Chou, MD	48	37%
Hawwa Alao, MD	46	36%
John Brooling, MD	46	36%
Jason Harper, MD	45	35%
Margaret Eugenio, MD	43	34%
Mitra Barahimi, MD	40	32%
Erik Snider, MD	39	31%
Amar Vedamurthy	39	31%
Blaire Burman, MD	38	30%
Isabel Hujoel, MD	38	30%
Arvind Sangwaiya, MD	37	30%
Elaine Shao, MD	36	29%
Christopher Carlson, MD	34	28%
Richard Tobin, MD	34	28%
Julianna Gardner, MD	33	27%
Randeep Kaur, MD	33	27%
Jennifer Lee	33	27%
Mark Derleth, MD	32	27%
Michael Saunders, MD	32	27%
Anand Baxi, MD	30	25%
Justin Brandler, MD	30	25%
Elizabeth Broussard, MD	30	25%
David Hockenbery, MD	30	25%
Jeffrey Jacobs, MD	30	25%
Bryan Balmadrid, MD	29	25%
Sally Condon, MD	29	25%
Jennifer Ray, MD	28	24%
Anand Singla, MD	28	24%
Neelendu Dey, MD	27	23%
Adam Templeton, MD	27	23%
Bruce Tung, MD	27	23%
Liam Hilson, MD	24	21%
Rex Cheng, MD	23	21%
Erin Cleveland, MD	22	20%
Rachel Issaka, MD	22	20%
Yutaka Tomizawa, MD	22	20%
Aditya Gutta, MD	21	20%
Abhishek Seth, MD	21	20%
Meagan Alvarado, MD	19	18%
Laurens Janssens, MD	19	18%
Cynthia Ko, MD	18	18%
Sing Lam, MD	18	18%
Nicole Kim, MD	16	16%
James Lord, MD	15	16%
Michael Chiorean, MD	13	14%
William Grady, MD	12	14%
Muyi Li, MD	12	14%
Philip Vutien, MD	12	14%
Andrew Feld, MD	11	13%
Nouredin Alebouyeh, MD	1-10	13% or below
Rotonya Carr, MD	1-10	13% or below
David Evans, MD	1-10	13% or below
Calvin Kiani, MD	1-10	13% or below
Rajesh Krishnamoorthi, MD	1-10	13% or below
Charles Landis, MD	1-10	13% or below
Austin Lin, MD	1-10	13% or below
Steven Lin, MD	1-10	13% or below
Pallavi Patel, MD	1-10	13% or below
Meredith Pearson, MD	1-10	13% or below
Christine Pizzute, MD	1-10	13% or below
Abdelhaleem Sideeg, MD	1-10	13% or below
Sophia Swanson, MD	1-10	13% or below
Shie-Pon Tzung, MD	1-10	13% or below
Lei 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.

Reported in previous releases

CMS does not report a colonoscopy volume for these clinicians in the October 2, 2026 release. Their pages show figures from earlier releases.

Ronald Yeh, MD Last reported August 18, 2026

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).