Our Providers

Providers

Surgical Team

Miroslav P. Bobek, M.D.

Miroslav P. Bobek, M.D.

  • Physician and Surgeon
  • Neurological and
    Spine Surgery
board certified

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David H. Walker, M.D.

David H. Walker, M.D.

  • Physician and Surgeon
  • Neurological and
    Spine Surgery
board certified

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Timothy D. Uschold, M.D.

Timothy D. Uschold, M.D.

  • Physician and Surgeon
  • Neurological and
    Spine Surgery
board certified

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Kathryn Wagner, M.D.

Kathryn Wagner, M.D.

  • Physician and Surgeon
  • Neurological and
    Spine Surgery
board certified

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Jared Brougham, M.D.

Jared Brougham, M.D.

  • Physician and Surgeon
  • Neurological and
    Spine Surgery
board eligible

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Support Providers

Anna Uschold, PA-C

Anna Uschold, PA-C

Anna grew up in Coos Bay, Oregon and travelled to New York to earn her Bachelor of Science degree focusing on Neurobiology and Behavior from Cornell University. She then attended the Duke University Physician Assistant Program and earned her Master of Health Sciences degree and PA certification in 2006. During PA school, she was inducted into the Pi Alpha National Honor Society for Physician Assistants. Anna and her husband have three young children and enjoy spending time outdoors, running, and horseback riding.
Kaitlin Stapleton, NP

Kaitlin Stapleton, NP

Katie received her Bachelor of Science degree in Nursing from Bowling Green State University, where she graduated magna cum laude. She worked as a Neurovascular Intensive Care nurse for several years before returning to get her master’s degree in Nursing in 2017 from the University of Toledo. In her spare time, she enjoys biking, hiking, rollerblading, and spending time with family and friends.
Doreen Yang, PA-C

Doreen Yang, PA-C

Doreen is originally from Tallahassee, Florida. She graduated from Emory University in Atlanta, Georgia in 2019, and later moved to North Carolina to attend Wake Forest University School of Medicine PA Studies. This was where she fell in love with the mountains and chose to pursue grander scenery and moved to Oregon to start her PA career in neurosurgery. In her free time, she enjoys hiking and exploring the outdoors, rock climbing, playing piano and guitar, and spending time with her cat.
Corrie Crump, NP-C

Corrie Crump, NP-C

Lilly McGonegal, PA-C

Lilly McGonegal, PA-C

Lilly grew up in Virginia Beach and Northern Virginia before earning a B.A. in Biology with a minor in Neuroscience from the College of Charleston in 2022. She completed her master’s degree in physician assistant studies at Elon University in 2024, where she was inducted into the Pi Alpha National Honor Society. A lifelong lover of the outdoors, Lilly was inspired by her brother’s move to Utah, where he blossomed and found adventure, motivating her own adventure to head west and begin her career as a neurosurgery PA in Oregon. In her free time, she enjoys snowboarding, hiking, climbing, reading, and spending time with loved ones and her kitten.
Brett Klezmer, PA-C

Brett Klezmer, PA-C

Brett grew up in various cities around Florida. He received his Bachelor of Arts in Biological Science in 2013 from Florida State University. Before becoming a PA, he worked in clinical research in the medical technology and pharmaceutical development space, as well as working as an EMT for a regional trauma service. He then received his Master of Physician Assistant Studies at Utah Valley University and was the chair for community outreach during his time in school. Along with his commitment to serving his community, Brett enjoys spending time with his wife and dog outdoors, hiking, paddleboarding, camping, and snowboarding.
SONSA Common Disorders

Common
Neurosurgical
Disorders
See List

Common
Spine Disorders
See List

SONSA Neurosurgery

What is Neurosurgery




SONSA Specialities

SONSA Specialities:

Skull Based Surgery

Spinal Surgery Complex and Minimally invasive (MAST)

Stereotactic Radiosurgery Consulations

Peripheral Nerve Surgery

SONSA Patient Outcomes

Why ArePatient Outcomes Important?