Cataract surgery volume in Portland, Oregon

83 clinicians CMS lists under Ophthalmology billed at least one cataract surgery in Portland in the June 2026 release.

Clinicians

Clinician	Cataract surgeries billed	Percentile rank
Oswald Rondon, MD	2,316	99%
Eden Yoon, MD	1,744	99%
David Gano, MD	1,135	99%
Bryan Edgington, MD	1,120	99%
Robert Ford, MD	977	98%
Cheri Leng, MD	520	92%
Rebecca Armour, MD	343	83%
Nathaniel Gebhard, MD	286	78%
David Poulsen, MD	270	76%
Jennifer Lyons, MD	259	75%
Jonathan Kemp, MD	256	75%
Shane Kim, MD	226	71%
Michael Page, MD	224	71%
Nisha Nagarkatti-Gude, MD	207	69%
James Wentzien, MD	204	68%
David Sanders, MD	195	67%
Matthew Kaufman, MD	178	64%
Daniel Holland, MD	162	62%
Jordon Lubahn, MD	152	60%
Sonal Dave, MD	144	59%
Mehrdad Malihi, MD	144	59%
Charles Reeder, MD	140	58%
Tyler Boulter, MD	137	57%
Daniel Lee, MD	135	57%
Lorinna Lombardi, MD	135	57%
Robert Mcglynn, MD	126	55%
Jacqueline Ng, MD	118	54%
Martin Balish, MD	117	54%
Robert Kinast, MD	104	51%
Blake Acohido, MD	101	50%
Michael Straiko, MD	100	50%
Alexander Robin, MD	96	49%
Jennifer Balentine, MD	95	49%
Steven Mansberger, MD	88	47%
Hillary Stiefel, MD	87	47%
Andrea Yonge, MD	82	46%
Sarah Glass, MD	81	46%
Jocelyn Lam, MD	76	45%
Prashanth Vallabhanath, MD	64	42%
Jeffrey Healey, MD	60	41%
Richard Stutzman, MD	60	41%
Andrea Dostroph, MD	59	40%
Stanley Crews, MD	49	37%
Jessica Chen, MD	42	35%
Ashlin Joye, DO	40	35%
Claudine Yee, MD	31	32%
Afshan Nanji, MD	27	30%
Roma Pegany, MD	26	29%
Laura Selby, MD	25	29%
Michael Gale, MD	23	28%
Zoey Stoumbos, MD	20	27%
Zachary Kroeger, MD	19	26%
Kun Ding, MD	17	25%
Mark Terry, MD	16	24%
Winston Chamberlain, MD	14	23%
Sirichai Pasadhika, MD	11	21%
Christopher Aderman, MD	1-10	21% or below
Steven Bailey, MD	1-10	21% or below
Melinda Binkley, MD	1-10	21% or below
Adam Braganza, MD	1-10	21% or below
John Campbell, MD	1-10	21% or below
Ariel Chen, MD	1-10	21% or below
John Clements, MD	1-10	21% or below
Jordan Desautels, MD	1-10	21% or below
Gwendolyn Edeen, MD	1-10	21% or below
Michael Lee, MD	1-10	21% or below
Michael May, MD	1-10	21% or below
Abhiniti Mittal, MD	1-10	21% or below
Apurva Patel, MD	1-10	21% or below
Antony Poothullil, MD	1-10	21% or below
Erick Rivera-Grana, MD	1-10	21% or below
David Simons, MD	1-10	21% or below
Janani Singaravelu, MD	1-10	21% or below
Claire Smith, MD	1-10	21% or below
Aristomenis Thanos, MD	1-10	21% or below
Merina Thomas, MD	1-10	21% or below
Paul Tlucek, MD	1-10	21% or below
Danita Tom, MD	1-10	21% or below
Carlos Torres Quinones, MD	1-10	21% or below
Daniel Tu, MD	1-10	21% or below
Ogul Uner, MD	1-10	21% or below
Paul Yang, MD	1-10	21% or below
Benjamin Young, MD	1-10	21% or below

Sorted by the number of cataract surgeries billed to Medicare, highest first. This is an ordering of one published figure, not a ranking of quality, skill, or outcomes. CMS suppresses counts of 10 and below to protect patient privacy and publishes the range instead, which is not a count of zero; 27 of these clinicians carry that range.

Understanding CMS Data

These figures are based on cataract surgeries billed to Original Medicare and Medicare Advantage as reported by the Centers for Medicare & Medicaid Services (CMS) in their June 2026 data release. The CMS data doesn't include procedures performed for patients who have other health care coverage (e.g., commercially insured, self pay, or VA). Furthermore, CMS sums up specific billing codes that cover lens replacement surgery and YAG laser capsulotomy to calculate the total number of cataract surgeries. Billing variation and coding errors could potentially affect CMS's data. Therefore, the cataract surgery volume data reported by CMS may be higher or lower than the actual total cataract surgeries performed by a clinician. We share the total cataract surgery figures for the clinicians CMS lists under Ophthalmology as CMS publishes them, without alteration.

Source: Centers for Medicare & Medicaid Services (June 2026 release).