5
5 Ratings with 3 written Reviews
Summary
Dr. Stephen Hornyak is a surgical oncologist with an impressive 52 years of experience treating cancer patients. He earned his medical degree from SUNY Downstate Medical Center College of Medicine and completed his residency at the prestigious Memorial Sloan Kettering Cancer Center, one of the nation's leading cancer treatment facilities. His dual expertise in general surgery and surgical oncology allows him to provide comprehensive care for patients facing complex cancer diagnoses.
Dr. Hornyak practices at Richmond University Medical Center and Staten Island University Hospital in Staten Island, New York. He focuses on treating patients with obesity and weight-related conditions, as well as managing high cholesterol in both adults and young patients. His surgical expertise includes advanced techniques in cancer treatment, and he incorporates physical therapy approaches into patient care when appropriate. Patients consistently rate Dr. Hornyak highly for his care, giving him an …average rating of 5.0.
Read More Read less Dr. Hornyak practices at Richmond University Medical Center and Staten Island University Hospital in Staten Island, New York. He focuses on treating patients with obesity and weight-related conditions, as well as managing high cholesterol in both adults and young patients. His surgical expertise includes advanced techniques in cancer treatment, and he incorporates physical therapy approaches into patient care when appropriate. Patients consistently rate Dr. Hornyak highly for his care, giving him an …average rating of 5.0.
Overview based on verified provider data
Quick Facts
- 52 years of experience
- Memorial Sloan Kettering Cancer Center
- 3 written reviews
- 2 specialties
- 5 areas of expertise
- 3 hospital affiliations
- 2 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Stephen William Hornyak has 2 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Stephen William Hornyak, MD | Gregory F. Dakin, MD | Katherine Hopkins, MD | Lisa S. Wiechmann, MD |
| Surgery | Surgery | Surgery | Surgery |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 52 Years of Experience | 29 Years of Experience | 9 Years of Experience | 27 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks Italian, Spanish | ||
| Staten Island , NY | New York , NY | New York , NY | New York , NY |
| Med School: Suny Downstate Medical Center College Of Medicine | Med School: New York University School Of Medicine | Med School: Icahn School Of Medicine At Mount Sinai | Med School: Universita Degli Studi Di Firenze Scuola Di Scienze Della Salute |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Stephen William Hornyak
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Stephen William Hornyak has the following 2 specialties
Specialty Expertise
Dr. Stephen William Hornyak has the following 5 areas of expertise
Certifications, License, & Education
52 Years Experience
Dr. Stephen William Hornyak holds an expired medical license in the state of New York.
Medical License
Medical Doctor with an expired medical license in the state of New York that expired in 2026.
Education & Training
Residency
Completed their residency at Memorial Sloan Kettering Cancer Center.
Medical School
Graduated from Suny Downstate Medical Center College Of Medicine in 1974.
NPI Number
Dr. Hornyak's NPI number is 1043298581.
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Frequently Asked Questions
- Is Dr. Stephen Hornyak accepting new patients?
- Dr. Stephen Hornyak has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Stephen Hornyak accept my insurance?
- You can see the insurance plans that Dr. Stephen Hornyak accepts on their Vitals profile.
- Which hospitals is Dr. Stephen Hornyak affiliated with?
- Dr. Stephen Hornyak is affiliated with Richmond University Medical Center, Staten Island University Hospital, and Staten Island University Hospital South.
- How can I make an appointment with Dr. Stephen Hornyak?
- You can find contact information for Dr. Stephen Hornyak here on Vitals.
- Does Dr. Stephen Hornyak accept virtual/telehealth appointments?
- Dr. Stephen Hornyak has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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