Colonoscopy clinicians in Los Angeles, California

CMS lists 154 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 Los Angeles, California (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Myung Gi Choi, MD	939	99%
Benjamin Basseri, MD	558	99%
Pedram Enayati, MD	429	99%
Ho Bae, MD	414	98%
Omid Shaye, MD	376	98%
Payman Khorrami, MD	317	96%
Jeffrey Sherman, MD	293	96%
Mehrdad Vosoghi, MD	268	94%
Marc Makhani, MD	243	93%
Ariel Malamud, MD	239	93%
Dae Rheem	229	92%
Cameron Sikavi, MD	225	91%
Hamed Nayeb-Hashemi, MD	173	85%
William Katkov, MD	171	84%
James Buxbaum, MD	164	83%
Mitchell Spirt, MD	156	81%
Alireza Sedarat, MD	143	78%
Nicholas Karyotakis, MD	134	76%
Michael Kim, MD	133	75%
Rudolph Bedford, MD	132	75%
Danny Issa, MD	132	75%
Brent Hiramoto, MD	127	73%
Pilsoo Oh, MD	127	73%
Alireza Tabesh, MD	122	72%
Kevin Ghassemi, MD	117	70%
Carey Strom, MD	117	70%
Jonathan Pourmorady, MD	115	69%
Tarek Hassanein, MD	112	68%
Ara Sahakian, MD	104	66%
Andrew Chang, MD	102	65%
Arash Zarimani, MD	101	64%
Benjamin Nulsen, MD	100	64%
Adebambo Ojuri, MD	97	63%
Siamak Tabib, MD	96	62%
Venkataraman Muthusamy, MD	93	61%
Joel Feinstein, MD	89	59%
Sohrab Yamini, MD	87	58%
Mark Ovsiowitz, MD	85	57%
Kareem Sassi, MD	85	57%
Marc Kaneshiro, MD	84	57%
Sarah Sheibani, MD	84	57%
Devin Patel, MD	83	56%
Cynthia Cherfane, MD	82	56%
Bing Zhang, MD	80	55%
Kevork Khadarian, MD	79	54%
Timothy Yen, MD	78	54%
Stephen Kim, MD	73	51%
Adrienne Lenhart, MD	72	51%
Andrew Kim, MD	71	50%
Neel Mann, MD	69	49%
Cyril Anyadike, MD	68	49%
Edward Share, MD	67	48%
Adarsh Thaker, MD	65	47%
Jing Zhou Wang, MD	65	47%
Andres Yarur, MD	65	47%
Morris Silver, MD	63	46%
Priyam Tripathi, MD	61	45%
Alexander Kim, DO	59	44%
Danse Bi, MD	56	42%
Terri Getzug	56	42%
Wendy Ho, MD	56	42%
Alex Chai, MD	55	42%
Thomas Wang, MD	55	42%
Guy Weiss, MD	55	42%
Daniel Brelian, MD	53	41%
Derek Cheng, MD	53	41%
Florence Damilola Odufalu, MD	52	40%
Xin Zheng, DO	51	39%
Rahul Dixit, MD	50	39%
F Otis Stephen, MD	49	38%
Ellie Chen, MD	46	36%
Maurice Elihu, MD	46	36%
Mordecai Solomon, DO	45	36%
Mary Farid, DO	44	35%
Nipaporn Pichetshote, MD	44	35%
Robert Fan, MD	43	34%
Paul Leitner, MD	43	34%
Anthony Myint, MD	40	33%
Jenny Sauk, MD	39	32%
Robert Tamai, MD	32	27%
Jennifer Kolb, MD	31	27%
Yong Lee, MD	30	26%
Dennis Jensen, MD	27	24%
Gaurav Syal, MD	27	24%
Jacques Van Dam, MD	24	22%
Rebecca Slomovic, MD	22	21%
Amanda Krause, MD	21	20%
Anisa Shaker, MD	21	20%
Raymond Moallemi, MD	20	19%
Hartley Cohen, MD	19	19%
Liyun Yuan, MD	19	19%
Berkeley Limketkai, MD	16	17%
Lily Dara, MD	15	16%
Hyosun Han, MD	15	16%
Brian Kim, MD	15	16%
Dorian Mendoza, MD	15	16%
Mina Rakoski, MD	15	16%
Michael Lin, MD	14	15%
Ethelred Carter, MD	13	15%
Aung Kaung, MD	13	15%
Laurie Deleve, MD	12	14%
Mysore Nagaraja, MD	11	13%
Chung-Jyi Tsai, MD	11	13%
Michael Albertson, MD	1-10	13% or below
Walid Ayoub, MD	1-10	13% or below
Firas Bahdi, MD	1-10	13% or below
Saroja Bangaru, MD	1-10	13% or below
Michael Block, MD	1-10	13% or below
Nirupama Bonthala, MD	1-10	13% or below
Yin Chan, MD	1-10	13% or below
Jonathan Chang, MD	1-10	13% or below
Kisuk Cho, MD	1-10	13% or below
Gina Choi, MD	1-10	13% or below
Jennifer Choi, MD	1-10	13% or below
Elizabeth Dong, MD	1-10	13% or below
Amir Ghaffari, MD	1-10	13% or below
Nasir Halim, MD	1-10	13% or below
Hassan Hamandi, MD	1-10	13% or below
John Iskander, MD	1-10	13% or below
James Jung, MD	1-10	13% or below
Ani Kardashian, MD	1-10	13% or below
Saro Khemichian, MD	1-10	13% or below
David Kim, MD	1-10	13% or below
Doeyoung Kim, MD	1-10	13% or below
Hyunseok Kim, MD	1-10	13% or below
Sharon Kim, MD	1-10	13% or below
Karl Kwok, MD	1-10	13% or below
Pei Lim Lee, MD	1-10	13% or below
Xue Jing Li, MD	1-10	13% or below
Kenny Liu, MD	1-10	13% or below
Martha Meza, MD	1-10	13% or below
Vijayamalini Pampati, DO	1-10	13% or below
Jason Pan, MD	1-10	13% or below
Vijay Pandyarajan, MD	1-10	13% or below
Guadalupe Pedrano, MD	1-10	13% or below
Michael Pimienta, MD	1-10	13% or below
Taaj Raasikh, MD	1-10	13% or below
Shadan Safvati, MD	1-10	13% or below
Takeshi Saito, MD	1-10	13% or below
Arnold Savage	1-10	13% or below
Harprett Sekhon, MD	1-10	13% or below
Manav Sewak Sharma, MD	1-10	13% or below
Akshay Shetty, MD	1-10	13% or below
Jasleen Singh, MD	1-10	13% or below
Blair Smart, MD	1-10	13% or below
Robert Venick, MD	1-10	13% or below
Graham Woolf, MD	1-10	13% or below
Bechien Wu, MD	1-10	13% or below
Mingming Xu, MD	1-10	13% or below
Timothy Yoo, MD	1-10	13% or below
Christine Yu, MD	1-10	13% or below
Kali Zhou, MD	1-10	13% or below
Thomas Zikos, MD	1-10	13% or below
Netanel Zilberstein, 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).