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St. Luke’s Clinic – Northwest Neurosurgery Associates: Boise, Bannock St.

Our team offers specialized treatments for issues related to the brain, spine, and peripheral nerves. These include minimally invasive spine surgery, brain and spine tumor surgery, peripheral nerve surgery, degenerative and reconstructive spine surgery, stereotactic surgery, deep brain stimulation (DBS), care for spine and cranial vascular disorders and trauma, and more.

Our goal is to find the treatment option that’s best for you to achieve your most successful results and highest possible quality of life.
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Providers

  • Angela L. Apreotesi, PA-C

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

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  • Nita M. Barrelier Verner, NP

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

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  • Donald J. Blaskiewicz, MD

    Neurosurgery

    Biography

    Donald J. Blaskiewicz, MD specializes in caring for people with complex spinal conditions, scoliosis, spinal deformity, and complex pathologies of the cervical spine.

    Dr. Blaskiewicz is a fellow of the Scoliosis Research Society and the American Association of Neurological Surgeons (AANS). He is also a member of several professional organizations, including the Congress of Neurological Surgeons (CNS), the North American Spine Society (NASS), the Society of Minimally Invasive Surgery (SMISS) and the California Association of Neurological Surgeons (CANS).

    In his free time, Dr. Blaskiewicz enjoys surfing, skiing, cycling, hiking, and traveling with his family.


    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

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  • David P. Bray, MD

    David P. Bray, MD

    Neurosurgery

    Biography

    David P. Bray, MD, MSc is a fellowship-trained neurosurgeon specializing in minimally-invasive/endoscopic cranial base and spine surgery, neurosurgical oncology, and pituitary surgery. He works with a multidisciplinary team of oncologists, ENT surgeons, neurologists, and radiation oncologists. He has expertise in treating disorders of the skull base, including pituitary tumors, meningiomas, acoustic/vestibular schwannomas, cranial nerve disorders (trigeminal & glossopharyngeal neuralgia and hemifacial spasm), normal pressure hydrocephalus (NPH), as well as metastases to the brain and gliomas. Dr. Bray has expertise in treating patients with spine tumors and degenerative disease of the spine (neuroforaminal and spinal stenosis). He also performs radiosurgery where benign and malignant tumors of the brain are treated without incisions. 

    Dr. Bray graduated from the University of Notre Dame Magna Cum Laude where he was a double major in pre-medicine and history. When he graduated from medical school, he was an inductee in the Alpha Omega Alpha Honor Medical Society, an honor bestowed upon the highest achieving members of a medical school class. 

    During his fellowship training, he earned a master's degree in clinical research at the Emory Laney Graduate School through a grant issued by the National Institutes of Health (NIH). After residency, he completed a CAST-accredited fellowship in neurosurgical oncology and minimally invasive cranial base surgery at Thomas Jefferson University in Philadelphia. He has published numerous scientific articles in peer-reviewed medical journals and has presented at national neurosurgical meetings. 

    Dr. Bray is a member of the American Association of Neurological Surgeons, the Alpha Omega Alpha Honor Medical Society, the Congress of Neurological Surgeons, the North American Skull Base Society, and the Dr. Tom Dooley Society Medical Alumni of the University of Notre Dame. 

    In his free time, he enjoys reading literature, hiking, skiing, exercising, playing/watching sports, cooking, and spending time with his family.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

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  • Annie I. Campbell, PA-C

    Biography

    Annie Campbell PA-C is a board certified physician assistant experienced in bariatric and general surgery. She has worked in laparoscopic, robotic, and revisional surgery. It has been her life's work to assist patients in improving their health through weight loss, and those patients inspire her daily. 

    Annie earned her bachelor’s degree and master's degree in physician assistant studies both from Idaho State University. In her free time, she enjoys golfing, hiking, painting, and spending time with family.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Edward A. Duckworth, MD

    Neurosurgery

    Biography

    Edward Duckworth, MD, MS, FAANS is an intracranial-focused neurosurgeon, specializing in the treatment of complex cranial disorders. He has expertise in treating many conditions, including cerebrovascular disease and the surgical treatment of stroke; brain tumors, including pituitary tumors; acoustic neuroma; skull base tumors; Chiari malformation; epilepsy; moyamoya; trigeminal neuralgia; arteriovenous malformations, cavernoma; normal-pressure hydrocephalus (NPH); and carotid artery disease. He is the director of St. Luke's Cranial Neurosurgery Program.

    Dr. Duckworth holds the distinction of being "dual-fellowship trained," having completed fellowship training in cerebrovascular and cranial base surgery at Northwestern University and in endovascular neurosurgery and interventional neuroradiology at Semmes-Murphey Neurologic and Spine Institute and the University of Tennessee Health Science Center. He as also earned a subspecialty certification in neuroendovascular surgery from The Society of Neurological Surgeons Committee on Advanced Subspecialty Training (CAST). This depth of expertise allows him to offer the safest and most effective treatments for cerebrovascular conditions, whether that is open surgery or an endovascular technique.

    While working at the Baylor College of Medicine, he held the rank of associate professor and served as the director of cerebrovascular and cranial base neurosurgery.

    Dr. Duckworth is a member of the American Association for Neurological Surgeons and the Congress of Neurological Surgeons. He has published over 50 peer reviewed papers and given more than 40 oral presentations on neurosurgery.

    Surgical Specialties

    • Neurosurgery
    • Cerebrovascular neurosurgery
    • Endovascular neurosurgery
    • Endovascular surgical neuroradiology
    • Neurological skull base surgery

    Availability

    Accepting new patients
     

  • Peyton M. Farrall, PA-C

    Biography

    Peyton Farrall, PA-C has clinical interests in conservative and surgical management of brain and spine conditions, utilizing a team-based approach to facilitate treatment plans, and ensuring patients receive compassionate and individualized care. 

    In her free time, Peyton enjoys reading, hiking, and pickleball. She is originally from Delaware, having moved to Idaho for school where she earned her master’s of physician assistant studies from Idaho State University.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

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  • ""

    Gregory S. Harrison, MD

    Neurosurgery

    Biography

    Gregory S. Harrison, MD, FAANS specializes in complex spine surgery, brain tumor surgery, peripheral nerve surgery, and general neurosurgery. Before moving to Boise, he practiced in both the Minneapolis/St. Paul area and Pocatello, ID.

    Dr. Harrison earned his bachelor's degree at Yale University and completed his medical degree at Loyola University Chicago Stritch School of Medicine, graduating with Alpha Omega Alpha honors. After his neurosurgery residency at Cleveland Clinic Foundation, Dr. Harrison performed his fellowship at the Royal Melbourne Hospital in Australia, with a focus on brain tumors and skull base surgery.

    Surgical Specialties

    • Brain surgery
    • Spine surgery
    • Discectomy
    • Laminectomy
    • Cervical and lumbar fusion
    • Corpectomy

    Availability

    Accepting new patients
     

  • Lauren M. Henken, PA-C

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

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  • Bennett B. Hofmeister, PA-C

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

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  • Nicholas A. Hutt, PA-C

    Physical Medicine and Rehabilitation

    Biography

    Nicholas Hutt, PA-C earned his master's degree in physician assistant studies from Midwestern University and his bachelor's degree in anthropology from Idaho State University.

    Availability

    Accepting new patients
     

  • Cody A. Johnson, PA-C

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Kenneth M. Little, MD

    Neurosurgery

    Biography

    Kenneth M. Little, MD, FAANS is the director of St. Luke's Clinic – Northwest Neurosurgery Associates and the regional director of spine surgery at St. Luke's Boise. His areas of expertise include complex spinal surgery, minimally invasive spinal surgery, brain tumor surgery, peripheral nerve surgery, reconstructive spine surgery, general neurosurgery, and artificial disc replacement. He also specializes in treatment of spinal tumors, cerebrovascular disorders, and degenerative spinal conditions. 

    Dr. Little earned his bachelor's degree in neuroscience from the University of California at Los Angeles where he received the Athletic and Academic Achievement Award. He earned his medical degree from Vanderbilt University where he received the Neurobiology Research Award for his work in neuroplasticity. While completing his neurosurgery training at Duke University, Dr. Little pursued a wide variety of clinical and academic interests. He authored several research papers and book chapters and received the Congress of Neurological Surgeons Stereotactic and Functional Neurosurgery Resident Award for his basic science work in epilepsy.

    Dr. Little also leads quality initiatives at St. Luke’s Health System across the continuum of care including a multidisciplinary outpatient spine clinic. Dr. Little is a member of St. Luke’s Research Advisory Committee and has a particular interest in comparative effectiveness research and novel analytics through mathematical modeling. 

    Surgical Specialties

    • Brain surgery
    • Spine surgery
    • Discectomy
    • Laminectomy
    • Cervical and lumbar fusion
    • Corpectomy

  • Charisse L. Mack, PA-C

    Biography

    Charisse Mack, PA-C earned her bachelor's degree from the University of Denver and her master's degree in physician assistant studies from Idaho State University. She is a member of the American Academy of Physician Assistants and the National Commission of Certification of Physician Assistants.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Sarah C. Maddux, PA-C

    Biography

    Sarah Maddux, PA-C earned her bachelor's degree from Northwest Nazarene University and her physician assistant degree from Trevecca Nazarene University. She is a member of the American Academy of Physician Assistants, and the National Commission on Certification of Physician Assistants.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Derek L. Martinez, MD

    Neurosurgery

    Biography

    Derek Martinez, MD, MS specializes in the treatment of a wide array of complex brain, spine, and peripheral nerve conditions. He has expertise in surgery for brain and spine tumors, complex spine care, radiosurgery, cerebral hemorrhages, artificial disc replacement, normal-pressure hydrocephalus (NPH), and general neurosurgery. He also performs surgery for neuromodulation and the treatment of movement disorders and epilepsy.

    Dr. Martinez is board certified by the American Board of Neurological Surgery. He is also a member of the Congress of Neurological Surgeons, the American Association of Neurological Surgeons, and the American Society for Stereotactic and Functional Neurosurgery. 

    Prior to his medical education, Dr. Martinez earned a bachelor's degree from Brigham Young University-Idaho and a master's degree in neuroscience from Brigham Young University.

    Surgical Specialties

    • Deep brain stimulation (DBS)
    • Epilepsy surgery
    • Stereotactic neurosurgery
    • Brain and pituitary tumors
    • Spine tumors
    • Complex spine surgery
    • Peripheral nerve surgery

    Availability

    Accepting new patients
     

  • Elizabeth S. McDowell, PA-C

    Biography

    Elizabeth McDowell, PA-C earned her bachelor's degree in biology and chemistry from Northwest Nazarene University and her physician assistant degree from Trevecca Nazarene University. She is a member of the National Commission on Certification of Physician Assistants.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile
  • Benjamin McGahan, MD

    Benjamin G. McGahan, MD

    Neurosurgery

    Biography

    Ben McGahan, MD is a highly skilled neurosurgeon, specializing in minimally invasive brain and spine surgery using advanced techniques such as robotic-assisted spinal fusion and endoscopic spine surgery. His expertise encompasses a wide range of spinal conditions, including spinal stenosis, disc herniations, spinal trauma and infections, complex spinal deformities, and spinal tumors. Dr. McGahan also treats brain tumors, traumatic brain injuries, hydrocephalus, facial pain and spasms, and Chiari malformations. 

    Dr. McGahan is known for his patient-centered approach, ensuring that each patient receives personalized, compassionate care tailored to their specific needs. He believes in clear communication and works closely with patients to develop the best treatment plans. Dr. McGahan is also involved in community health initiatives, reflecting his dedication to the well-being of his community. 

    During his residency at The Ohio State University, Dr. McGahan distinguished himself through a high volume of surgeries and significant research contributions. His work on reducing wound infections, improving skull base surgery visualization, and reviewing non-operative back pain management has been published in leading medical journals, underscoring his commitment to advancing the field of neurosurgery. 

    Dr. McGahan lives in Boise with his wife and two children. He values family and understands the importance of work-life balance, which he incorporates into his compassionate care philosophy.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

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  • Alec M. Meyerhoeffer, PA-C

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Jason A. Montgomery, NP

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile
  • Richard K. Osenbach, MD

    Richard K. Osenbach, MD

    Neurosurgery

    Biography

    Richard Osenbach, MD focuses on the neurosurgical treatment of chronic pain disorders as well as the neurosurgical treatment of movement disorders such as essential tremor and Parkinson's disease. He is experienced in a wide array of neurostimulation devices, including the use of spinal cord (dorsal column) stimulation, peripheral nerve stimulation, motor cortex stimulation, and deep brain stimulation.

    Dr. Osenbach is experienced in the implantation of spinal drug delivery devices for the management of chronic pain and spasticity. He also manages pain associated with cancer and other problems like complex regional pain syndrome, pain following brachial plexus avulsion, phantom limb pain, pain following nerve surgery, and craniofacial pain disorders.

    Prior to his medical education, Dr. Osenbach earned his bachelor's degree in biochemistry from Albright College. He served in the U.S. Army as assistant chief of neurosurgery at Walter Reed Army Medical Center, and has served as faculty at the Medical University of South Carolina and Duke University Hospital. He is certified by the American Board of Neurological Surgery.

    Surgical Specialties

    • General cranial surgery
    • Spinal surgery
    • Neurostimulation and functional neurosurgery
    • Peripheral nerve surgery

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

    • Specialties, Conditions & Treatments

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  • Hayley C. Piepmeyer, PA-C

    Biography

    Hayley C. Piepmeyer, PA-C worked in orthopedic surgery prior to taking on her new role in neurosurgery. 

    Hayley earned her degree in physician assistant studies from the Massachusetts College of Pharmacy and Health Sciences, and a master's degree in exercise physiology from the University of Wisconsin-Madison.

    Originally from Boise, Hayley enjoys spending free time with her family, playing sports with her kids, hiking, river rafting, and gardening.


    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Glen A. Pollock, MD

    Neurosurgery

    Biography

    Glen Pollock, MD is a fellowship trained, board certified neurological surgeon who is currently the director of Acute Care Neurosurgery at St. Luke’s Health System in Boise. He has since engaged in cerebrovascular and endovascular neurosurgery, skull-based neurosurgery, spine care, as well as trauma neurosurgery which has made him uniquely qualified to cover a wide range of neurosurgical issues. 

    Prior to medical school, Dr. Pollock attended the University of Florida and the College of Veterinary Medicine at Cornell University. He practiced as a veterinarian prior to changing careers and attending medical school.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

    • Specialties, Conditions & Treatments

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  • Yustina N. Rafla, PA-C

    Physical Medicine and Rehabilitation

    Biography

    Yustina Rafla, PA-C is a member of the American Academy of Physician Assistants and has worked as a clinical research coordinator where she managed and facilitated medical research projects, co-authored abstracts and case studies, and prepared presentations for regional conferences.

    Yustina earned her bachelor's degree in biology from Boise State University and her master's in physician assistant studies from Harding University.

    Availability

    Accepting new patients
     
  • Travis Wahl, PA-C

    Travis S. Wahl, PA-C

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

Procedures & Treatments

  • Back and Spine Surgery

    When conservative treatment isn’t helping, surgery may be an option for resolving your back or spine problems.

  • Deep Brain Stimulation

    Deep brain stimulation (DBS) is a therapy that can improve quality-of-life when medication cannot be further optimized.

Conditions

  • Brain Tumors

    A brain tumor is a mass of abnormal cells inside the brain. St. Luke's offers many treatment options including traditional surgery, chemotherapy, and beyond.

  • Moyamoya

    Moyamoya is a disease marked by constricted or blocked arteries at the base of the brain.

  • Normal-Pressure Hydrocephalus

    NPH is an abnormal increase of fluid in the brain that puts pressure on the brain. It may be caused by a head injury, an infection, a tumor, or by unknown causes.

  • Acoustic Neuroma

    An acoustic neuroma is a noncancerous growth or tumor on the auditory nerve near the inner ear.

  • Trigeminal Neuralgia

    Trigeminal neuralgia is a chronic condition marked by a sudden and severe pain in the face or jaw.

North American Skull Base Society Recognition

North American Skull Base Society Recognition

St. Luke's Neurosurgery a Team of Distinction

St. Luke’s neurosurgery has earned recognition as a Multidisciplinary Team of Distinction from the North American Skull Base Society (NASBS). NASBS recognizes programs like St. Luke’s Neurosurgery that have multidisciplinary skull base surgery teams that include physicians in a variety of specialties.

Learn More about this Recognition

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Access Your Mobile Medical Record Anytime, Anywhere

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There's also an easy-to-use MyChart app available for your mobile devices!

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People are at the heart of great health care. That's why we are committed to delivering compassionate, high-quality care tailored to the communities we serve. 


Together with our community partners and patients, we're building a stronger, healthier future for all Idahoans.

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