Cataract surgery clinicians in Omaha, Nebraska

CMS lists 46 clinicians with a primary specialty of Ophthalmology who have billed Medicare for at least one cataract surgery and practice in Omaha, Nebraska (details below).

Cataract surgery volume

Clinician	Cataract surgeries billed	Percentile rank
Brandon Baartman, MD	1,786	99%
Michael Feilmeier, MD	1,214	99%
Lorraine Provencher, MD	919	98%
Jesse Himebaugh, MD	914	98%
Mark Young, MD	827	97%
Sao Liu, MD	709	96%
Brandon Menke, MD	644	95%
Brent Timperley, MD	425	88%
Brent Bruck, MD	418	87%
Matthew Brumm, MD	418	87%
Patricia Terp, MD	409	87%
Rachel Mercer, MD	385	85%
John Halgren, MD	352	83%
Joseph Townley, MD	342	83%
Thomas Graul, MD	311	80%
Jessica Liu, MD	294	78%
Tania Padilla Conde, MD	264	75%
Daniel Agraz, MD	260	75%
Peter Simone, MD	260	75%
Martin Mizener, MD	215	69%
Carol Drake, MD	187	65%
Michael Dasilva, MD	170	63%
Sao Liu, MD	167	62%
Shane Havens, MD	158	61%
Anne Fitzpatrick, MD	142	58%
Ivey Thornton, MD	139	57%
Drew Dickson, MD	95	49%
Dean Arkfeld, MD	81	46%
Lance Kugler, MD	78	45%
Brian Armstrong, MD	64	41%
Ana Morales, MD	57	40%
John Peters, MD	54	39%
Jill Grennan, MD	53	38%
Bliss O'Bryhim, MD	52	38%
Matthew Appenzeller, MD	48	37%
David Ingvoldstad, MD	26	29%
Pukhraj Rishi	18	25%
Mark Emig, MD	17	25%
Joshua Priluck, MD	17	25%
Stephanie Meyers, MD	13	22%
Vikas Gulati, MD	12	21%
Thomas Hejkal	1-10	21% or below
Ronald Krueger, MD	1-10	21% or below
Edward McGill, MD	1-10	21% or below
William Thomas, MD	1-10	21% or below
Richard Yi, MD	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).