Coronary angioplasty and stenting clinicians in Seattle, Washington

CMS lists 33 clinicians with a primary specialty of interventional cardiology, cardiology and its subspecialties, cardiac or thoracic surgery, or internal medicine who have billed Medicare for at least one coronary angioplasty and stenting procedure and practice in Seattle, Washington (details below).

Coronary angioplasty and stenting volume

Clinician	Coronary angioplasty and stenting procedures billed	Percentile rank
Christopher Brown, MD	328	99%
Kathleen Kearney, MD	116	98%
William Lombardi, MD	105	97%
Lorenzo Azzalini, MD	100	96%
Sidakpal Panaich, MD	74	92%
Peter Demopulos, MD	73	92%
Lucas Fayez Bazi, MD	71	91%
Ivan Medvedev, MD	50	83%
John Edward Blair, MD	47	81%
Wayne Hwang, MD	43	78%
Ming Zhang, MD	40	75%
Alaa Ayyoub, MD	36	71%
Thomas Kawano, MD	33	68%
Drew Baldwin, MD	28	62%
Jorge Betancor, MD	27	60%
Kenta Nakamura, MD	25	58%
David Elison, MD	20	49%
John Petersen, MD	20	49%
Gary Weeks, MD	19	47%
Christine Chung, MD	17	43%
Brandon Barrett, MD	16	41%
Sameer Gafoor, MD	14	36%
Joshua Zimmer, MD	14	36%
Paul Huang, MD	13	34%
Michael Chen, MD	1-10	29% or below
Barbara Danek-Karatasakis, MD	1-10	29% or below
Timothy Dewhurst, MD	1-10	29% or below
Jacob Doll, MD	1-10	29% or below
Creighton Don, MD	1-10	29% or below
Gordon Kritzer, MD	1-10	29% or below
Zachary Steinberg, MD	1-10	29% or below
Anna Subramaniam, MD	1-10	29% or below
Sunu Thomas, MD	1-10	29% or below

Sorted by the number of coronary angioplasty and stenting procedures 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 "Coronary angioplasty and stenting" category combines specific billing codes for treating the arteries of the heart to calculate the number of times each clinician billed Medicare for "Coronary angioplasty and stenting." These include balloon angioplasty, stent placement, plaque removal, and related catheter treatments, which patients often call heart stents or coronary stents. CMS names the category for the group of procedures it covers, not for what each one involved: a procedure counts whether or not it included a stent. 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 coronary angioplasty and stenting procedures a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of interventional cardiology, cardiology and its subspecialties, cardiac or thoracic surgery, or internal medicine (as reported to Medicare) are presented.

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