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Our Team


Contact information
:
Bassett Medical Center
Department of Neurosurgery
1 Atwell Road
Cooperstown, NY 13326
607-547-3334


Mark J. Hornyak, MDHornyakMarkLR2014.jpg
Division Chief – Neurosurgery

Education: Loyola College - Baltimore, MD - B.S.
                    University of Maryland School of Medicine - M.D.
Internship: New York Medical College - Valhalla, NY - General Surgery
Residency: New York Medical College - Neurosurgery
Fellowship: University of Utah - Salt Lake City - Skull Base Surgery
Certifications: The American Board of Neurological Surgery
Special Interests

  • Brain tumors
  • Skull base neurosurgery
  • Pituitary tumors
  • Defenerative spinal disorders
  • Peripheral nerve disorders
  • Spine tumors
  • Tigeminal neuralgia

Locations:

Bassett Medical Center, Cooperstown - 607-547-3334
Oneonta Specialty Services, Oneonta - 607-547-3400
Oneida Health Center - 315-231-5400


Larry Shannon, MDShannonLarryLR2015.JPG

Education: Case Western Reserve University School of Medicine, Cleveland, OH - M.D.
Fellowship: University of Buffalo Neurosurgery, Buffalo, NY - Neuro-Endovascular
Internship: Rush University Medical Center, Chicago, IL - Department of Surgery
Residency: Rush University Medical Center, Chicago, IL - Department of Neurological Surgery

 Special Interests

  • Minimally invasive surgical treatment of spinal pathology 

Locations:

Bassett Medical Center, Cooperstown - 607-547-3334
Herkimer Health Center - 315-867-2700
Little Falls Specialty Services - 315-823-4506
Sidney Tir-Town Specialty Services - 607-563-7980 


Gregory Frevele, RPA-C
Frevele,Greg2015.JPG
Physician Assistant

Certifications/Memberships: Certified, National Commission on Certification of Physician Assistants
Education: State University of New York at Albany, B.S.
                     Touro College, BS, PA
Residency: Norwalk Hospital/Yale University School of Medicine, Physician Assistant Surgical

 Special Interests

  • Clinical Support for physicians

Locations:

Bassett Medical Center, Cooperstown - 607-547-3334
 

Karen Kelley, PA-CKelleyKarenLR10.JPG

Physician Assistant

Certifications/Memberships: National Commission on Certification of Physician
Education: New York University, BS, Nutrition/Biochemistry
                    Cornell Medical College, New York, NY, Physician Assistant Program

  Special Interests

  • Clinical Support for physicians

Locations:

Bassett Medical Center, Cooperstown - 607-547-3334
Oneonta Specialty Services - 607-433-6433


Margaret Quinton, FNPQuinton,Margaret, FNP_HR2016.JPG
Nurse Practitioner

Education: Berkshire Community College, Pittsfield, MA - B.S.N.

                    Community General Hospital, Syracuse - F.N.P.

Special Interests

  • Certified as a Primary Spine Care provider
  • Navigator for the Spine Care Institute
  • Clinical support for the physicians

Locations:

Bassett Medical Center, Cooperstown - 607-547-3334

 

  • MyHealthy Decisions | Total Ankle Replacement

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    MyHealthy Decisions | Robotic-Assisted Partial Knee Replacement

    James Flannery, of Oneonta, NY, was experiencing knee pain that was holding him back from work and doing the things he loves. After consultation with Dr. Michael Diaz, James opted for robotic-assisted partial knee replacement surgery using A.O. Fox Hospital's state-of-the-art NAVIO system. Watch read more

One Atwell Road Cooperstown, NY 13326

607-547-3456 : 1-800-BASSETT (227-7388)