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Sub Specialty:
Cornea and External Diseases
Refractive Surgery

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

Patient Satisfaction Ratings:
4.6 Stars
282 Patient
Satisfaction Ratings
Learn About Our Survey


University of Pittsburgh Physicians

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

UPMC Surgery Center at Daughtery Drive
125 Daugherty Dr.
3rd Floor
Monroeville, PA 15146
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.

April 13, 2017

they all was very good they are the best in the world.

April 13, 2017

The Dr. was very good.

April 07, 2017

Dr mammen knew exactly what was wrong with my eye as soon as he looked at it. told me what needed done. did the procedure. my eye is now great. never go to another eye specialist but him only. recommended him to many!

March 23, 2017

I would recommend Dr. Mammen to anyone. in fact I have.

March 16, 2017

This was an initial emergency visit with this provider which is why he did not have my records and a few of the questions were difficult to answer as they assume he was my current treating physician. Although doctor did not have my records, he permit me to give him an exhaustive history. Super nice doctor and I have alot of confidence moving forward. Very happy!

March 09, 2017

I have the best eye doctors at UPMC. These doctors have followed my condition for five years and never give up on the best care they can give me. I am so thankful I found them.

March 06, 2017

I think maybe Dr. Mammon is over-booked at times, too many patients in one day makes it difficult for him to stay on schedule. Patients should not have to wait over an hour to be seen.

February 27, 2017

In contrast to a few comments that Dr, Memmon was not responsive to their needs I found the doctor to be friendly, answer clearly, politely and very professional in his demeanor. I wish I could have seen him sooner that having to wait a month. I also wish I had been asked if a student could attend the interview and examine my eyes - I was not asked if that was ok with me!

February 23, 2017

Jennifer was the nurse that took care of me and she was excellent. She was very professional and knowledgeable about my medical concerns. Dr. Mammen was the physician that treated me. He was also excellent. Very professional, knowledgeable about my medical concerns and he explained everything in great detail. He also taught me about my eye problems and showed me how to treat the problem. Very good doctor. As a retired nurse I could tell that he really knows his profession.

February 20, 2017

My appointment was for 820am. I did not see provider until around 11am. Had to have an additional test and did not leave the offices until 1145.