Cataract surgery clinicians in Vancouver, Washington

CMS lists 40 clinicians with a primary specialty of Ophthalmology who have billed Medicare for at least one cataract surgery and practice in Vancouver, Washington (details below).

Cataract surgery volume

Clinician	Cataract surgeries billed	Percentile rank
Nathaniel Gebhard, MD	286	78%
David Poulsen, MD	270	76%
Evan Olson, MD	269	76%
Jonathan Kemp, MD	256	74%
Silvio Gurdian, MD	236	72%
Matthew Kaufman, MD	178	64%
Daniel Holland, MD	162	61%
Jordon Lubahn, MD	152	60%
Daniel Lee, MD	135	57%
William Van De Car, MD	134	57%
Robert McGlynn, MD	126	55%
Shauyene Hsieh, MD	114	53%
Richard Bernheimer, MD	97	49%
Theresa Clayton, MD	95	49%
Adam Rasky, MD	89	47%
Hillary Stiefel, MD	87	47%
Corey Batiste, MD	85	47%
Emily Jones, MD	83	46%
Andrea Yonge, MD	82	46%
Stanley Crews, MD	49	37%
Michael Kim, MD	37	33%
Lynn Sun, MD	32	32%
Roma Pegany, MD	26	29%
Zachary Kroeger, MD	19	26%
Mauricio Chavez, MD	17	25%
Christopher Aderman, MD	1-10	21% or below
Adam Braganza, MD	1-10	21% or below
John Campbell, MD	1-10	21% or below
Adam Hanif, MD	1-10	21% or below
Zakary Hoffelt, MD	1-10	21% or below
Michael Lee, MD	1-10	21% or below
Daniel Lee, MD	1-10	21% or below
Michael May, MD	1-10	21% or below
Apurva Patel, MD	1-10	21% or below
Janani Singaravelu, 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
Carlos Torres Quinones, MD	1-10	21% or below
David Valent, DO	1-10	21% or below

Sorted by the number of cataract surgeries 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 "Cataract surgery" category combines specific billing codes for cataract surgery to calculate the number of times each clinician billed Medicare for a "Cataract surgery." These include lens replacement surgery and YAG laser capsulotomy, a laser treatment that can follow cataract surgery. 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 cataract surgeries a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Ophthalmology (as reported to Medicare) are presented.

Source: Centers for Medicare & Medicaid Services (August 18, 2026 release).