The Staff at
The Valley Gamma Knife Center

Our Desired Outcome is the Same as
Yours – Results.

At The Valley Gamma Knife Center, we believe in starting with outcomes. It is with this in mind that we have invested in state-of-the-art technology, exceptional doctors, and a caring staff to provide the best possible outcome. Also, since we’re part of Valley Health System, we put our emphasis on your journey, with a goal of improving outcomes without forgetting how important it is to be human.

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Anthony D'Ambrosio, M.D., FAANS

William Cobb, M.D, Ph.D., FAANS

Radiation Oncologists

Chad M. DeYoung, M.D.

Michael F. Wesson, M.D.

Thomas Kole, M.D., Ph.D.

AVM Specialists

Ahsan Sattar, M.D.

Dorothea Altschul, M.D.


Julie Lo

Steven Johnson

Matthew Worth

Ki Chak

Nurse Navigators

Susan Visco

Kelly LoPresti


Leigh Slagle

Registered Dietitian

Lovinder Kaur

Imaging Access Representative

Deborah Panetta

Director of Radiation Oncology

Suzanne Kaufman

Licensed Social Worker