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Sub Specialty:
Cornea and External Diseases
Refractive Surgery

Hospital Affiliation(s):
UPMC Children's Hospital of Pittsburgh
UPMC Shadyside
UPMC Horizon
UPMC Presbyterian
UPMC Mercy

Patient Satisfaction Ratings:
4.7 Stars
315 Patient
Satisfaction Ratings
Learn About Our Survey


UPMC Eye Center
UPMC Surgery Center at Daugherty Drive
125 Daugherty Dr.
3rd Floor
Monroeville, PA 15146
Office Phone:
(412) 647-2200

UPMC Eye Center, Eye & Ear Institute
203 Lothrop St.
Floor 7
Pittsburgh, PA 15213
Office Phone:
(412) 647-2200


Ophthalmology, American Board of Ophthalmology


MD, Medical College of Georgia , Augusta, GA

Medical College of Georgia,
Augusta, GA

University of Pittsburgh School of Medicine,
Pittsburgh, PA

Appointment Information

New Patients

Appointment Information

Call 1-800-533-UPMC (8762), Monday through Friday between 7 a.m. and 7 p.m. to schedule an appointment OR call the locations listed above to speak with a representative.

Returning Patients

  • Your doctor may participate in scheduling through MyUPMC. If you would like to book online, please log in and visit the Appointments tab.
  • Call the locations listed above to speak with a representative.

Patient Ratings

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Listens Carefully

Spends Enough Time with You

Recommend This Provider to Family/Friends

Shows Respect for Patients

Provides Easy to Understand Information

Explains in a Way You Understand

Patient Comments

At UPMC we believe transparency is critical. Patient comments found on UPMC Find A Doc are not investigated to ascertain truth or validity. Comments are posted in the spirit of providing patient's perceptions of their encounters with their providers.

Patient comments are gathered from our Press Ganey Patient Satisfaction Survey and are displayed in their entirety. Patients are not identified for confidentiality and patient privacy.

June 03, 2019

Dr. Mammen took the time to answer every concern I had. He explained everything in a way that I could understand.

May 20, 2019

would recommend him to everyone

May 16, 2019

the entire staff and especially dr mammen are exceptional ! they are patient and answer all questions !!

May 16, 2019

Dr Mammen has been my corneal specialist for 7 years. He's an excellent doctor and has helped me a lot with my four eye conditions. My only complaint is that many times there's an extremely long wait to see him. I realize he's in great demand as an eye surgeon, but I have sometimes had to wait 3 - 4 hours to be seen by him in the Oakland Eye Center. The Center may be understaffed or porrly organized. I see other UPMC docs within 15 minutes.

May 16, 2019

he didn't explain anything to me about my condition

May 09, 2019

I have repeatedly told Dr. Mammen that I am hard of hearing, but he turns away from me and talks while facing the computer screen. I have asked him to repeat and talk directly to me, but he will not turn to address me. He speaks very softly and I miss most of what he is saying. How many times do I need to ask him to speak so that I can understand him? I have resorted to having my husband sit in the visitor's chair, hoping that he will pick up what Dr. Mammen is saying. How can I follow the doctor's orders if I can't understand what he is saying?

May 09, 2019

Dr Mamman and his are excellent. It was a great experience.

May 09, 2019

Always running late, taken back quickly but a lot of time sitting waiting. Always 2 hour appointments

May 09, 2019

Dr. Mamman is always take very good care of me and explains thing and does what is need to help my complex issue.

May 09, 2019

listened to my concerns, best treatment options...