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Surgical Specialist, Neurological Surgeon
16 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Mark Hornyak is Good. Dr. Hornyak has been reviewed by 4 patients who have provided 2 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 2.3
Promptness 2.3
Courteous Staff 2.3
Accurate Diagnosis 3.0
Bedside Manner 3.0
Spends Time with Me 3.0
Follows Up After Visit 3.0

Specialties & Research

  • He has special expertise in 4 areas:
  • Cancer
  • Craniotomy (Brain Surgery)
  • Neurology
  • Neurosurgical Procedures

Education & Awards

Dr. Hornyak graduated from University of Maryland , Baltimore.


Dr. Hornyak has 14 hospital affiliations:

  • DMC - Sinai-Grace Hospital 
  • Huron Valley-Sinai Hospital 


  • English

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Additional Information
Dr. Mark Hornyak MD is a male Neurosurgeon, has 16 years of experience and practices in Neurological Surgery.
Where does Dr. Mark Hornyak practice?
Dr. Mark Hornyak has 1 office location.
Dr. Mark Hornyak practices Neurological Surgery near Cooperstown, NY.
See Cooperstown Surgeons.