4.5
6 Ratings
Summary
Dr. Mark Duffy is an ophthalmologist and plastic surgeon who completed his medical degree at the University of Illinois at Chicago College of Medicine. He finished his residency training at Advocate Ravenswood Medical Center and brings 34 years of experience to his practice. Dr. Duffy is fluent in both English and Spanish, allowing him to serve a diverse patient population.
Dr. Duffy practices at multiple locations throughout Green Bay, Wisconsin, including Aurora Baycare Medical Center, HSHS Saint Vincent Hospital, Emplify Health Bellin, and HSHS Saint Marys Hospital Medical Center. His expertise includes treating drooping eyelids and dry eye conditions. He performs comprehensive vision tests and visual field testing to evaluate eye health and function. Patients have given him an average rating of 4.5 stars for his care and service.
Dr. Duffy practices at multiple locations throughout Green Bay, Wisconsin, including Aurora Baycare Medical Center, HSHS Saint Vincent Hospital, Emplify Health Bellin, and HSHS Saint Marys Hospital Medical Center. His expertise includes treating drooping eyelids and dry eye conditions. He performs comprehensive vision tests and visual field testing to evaluate eye health and function. Patients have given him an average rating of 4.5 stars for his care and service.
Overview based on verified provider data
Quick Facts
- 34 years of experience
- speaks English, Spanish
- Advocate Ravenswood Medical Center
- 2 specialties
- 15 areas of expertise
- 2 board certifications
- 4 hospital affiliations
- 6 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. Mark Thomas Duffy has 6 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Mark Thomas Duffy, MD | Dr. Ayman G. Elnahry, MD, PhD | Dr. Steven C. Schmidt, MD | Dr. Charles Hejny, MD |
| Ophthalmology | Ophthalmology | Plastic Surgery | Ophthalmology |
| Accepts New Patients | Accepts New Patients | ||
| 34 Years of Experience | 16 Years of Experience | 37 Years of Experience | 29 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Spanish | Speaks Spanish, Chinese | Speaks English, Spanish | |
| Green Bay , WI | Green Bay , WI | Green Bay , WI | Appleton , WI |
| Med School: University Of Illinois At Chicago College Of Medicine | Med School: University Of Cairo Faculty Of Medicine | Med School: Washington University In St Louis School Of Medicine | Med School: Medical College Of Wisconsin |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mark Thomas Duffy
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Mark Thomas Duffy has the following 2 specialties
Specialty Expertise
Dr. Mark Thomas Duffy has the following 15 areas of expertise
Certifications, License, & Education
34 Years Experience
Dr. Mark Thomas Duffy holds an expired medical license in the state of Wisconsin.
Medical License
Medical Doctor with an expired medical license in the state of Wisconsin that expired in 2025.
Education & Training
Residency
Completed their residency at Advocate Ravenswood Medical Center.
Medical School
Graduated from University Of Illinois At Chicago College Of Medicine in 1992.
NPI Number
Dr. Duffy's NPI number is 1235167537.
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Frequently Asked Questions
- Does Dr. Mark Duffy accept my insurance?
- You can see the insurance plans that Dr. Mark Duffy accepts on their Vitals profile.
- How can I make an appointment with Dr. Mark Duffy?
- You can find contact information for Dr. Mark Duffy here on Vitals.
- Is Dr. Mark Duffy accepting new patients?
- Dr. Mark Duffy has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Mark Duffy accept virtual/telehealth appointments?
- Dr. Mark Duffy has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- What languages does Dr. Mark Duffy speak?
- Dr. Mark Duffy speaks English and Spanish.
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