Breast cancer surgery clinicians in Chicago, Illinois

CMS lists 41 clinicians with a primary specialty of General Surgery or Surgical Oncology who have billed Medicare for at least one mastectomy procedure and practice in Chicago, Illinois (details below).

Breast cancer surgery volume

Clinician	Mastectomy procedures billed	Percentile rank
Nora Hansen, MD	87	98%
Kevin Bethke, MD	80	98%
Denise Monahan, MD	67	96%
Olga Kantor, MD	58	94%
Miraj Shah-Khan, MD	58	94%
Rosalinda Alvarado, MD	54	93%
Nora Jaskowiak, MD	54	93%
Jennifer Gambla, MD	49	91%
Sarah Shubeck, MD	43	89%
Claudia Perez, DO	31	81%
Betty Fan, DO	27	78%
Seema Khan, MD	23	74%
Diane Drugas, MD	22	73%
Andrea Madrigrano, MD	22	73%
Xuanji Wang, MD	20	71%
Stephen Ganshirt, MD	19	70%
Celeste Cruz, MD	17	67%
Cristina Odonoghue, MD	13	61%
Maria Osipova, MD	12	59%
Anna Chichura, MD	11	58%
Nathaniel Reuter, MD	11	58%
Mark Connolly, MD	1-10	58% or below
Giovanni Giannotti, MD	1-10	58% or below
Siddiq Hasan, MD	1-10	58% or below
Anngell Jones, MD	1-10	58% or below
Marius Katilius, MD	1-10	58% or below
Lindsey Klingbeil, MD	1-10	58% or below
Swati Kulkarni, MD	1-10	58% or below
Andrea Lundeen, MD	1-10	58% or below
Elizabeth Marcus, MD	1-10	58% or below
Cecylia Mizera, MD	1-10	58% or below
Atul Nanda, MD	1-10	58% or below
Richard Olen, MD	1-10	58% or below
Krunal Pardiwala, MD	1-10	58% or below
Ken Richards, MD	1-10	58% or below
George Salti, MD	1-10	58% or below
Thomas Smith, MD	1-10	58% or below
Michael Warso, MD	1-10	58% or below
Julie Wecsler, MD	1-10	58% or below
Gabrielle Yee	1-10	58% or below
Phillip Zaret, MD	1-10	58% or below

Sorted by the number of mastectomy 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 "Mastectomy" category combines specific billing codes for breast surgery to calculate the number of times each clinician billed Medicare for a "Mastectomy." These include partial removal of the breast (lumpectomy); removal of the whole breast, with or without underarm lymph nodes; breast reconstruction after mastectomy; implant and implant-capsule procedures; breast lift and reduction; placement of a radiation device during surgery; and surgery for enlarged male breast tissue. 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 mastectomy procedures a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of General Surgery or Surgical Oncology (as reported to Medicare) are presented.

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