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Internal Medicine

Sub Specialty:

Hospital Affiliation(s):
UPMC Shadyside
UPMC McKeesport
UPMC Presbyterian
UPMC Mercy
UPMC Magee-Womens Hospital

Language Spoken:

Patient Satisfaction Ratings:
4.6 Stars
44 Patient
Satisfaction Ratings
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Digestive Disorders Center (DDC) - Primary Patient Center
UPMC Presbyterian
200 Lothrop St.
Digestive Disorders Ctr., 3rd Floor
Pittsburgh, PA 15213
Office Phone:
(412) 647-8666


Gastroenterology, American Board of Internal Medicine


MD, University of Patras Medical School, Patras, Greece

Egion Community Hospital,
, Greece

Albany Medical College,
Albany, NY

Mayo Clinic,
Rochester, MN

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.

August 21, 2018

Always a comfortable experience always well informed of what is going on and what red flags to watch for down the road I really can't say enough good about this doctor and staff and hospital.Excellent care and respectThanks

August 21, 2018

I was a good experience overall. A very comfortable atmosphere.

August 07, 2018

I had a relatively good experience today. No complaints.

July 24, 2018

I would give this Dr a 10 plus.i

June 26, 2018

Dr. Papachristoi is outstanding. He is the best physician I have ever had.

May 15, 2018

The entire office was very courteous and helpful The doctors provided me with the best possible care any one could ask for very caring and compassionate

May 01, 2018

dr Popocristo is close to my heart if it wasn't for him I don't think I would be here todayI was real sick and getting sicker I was in CLeveland for a long time my daughter got ahold of umpc dr Popocristo and made an app. went from hospital to see him he admitted me and started to help me get better and understanding ty again blessings to u all and staff ty

May 01, 2018

The doctor was extremely friendly and approachable. He took his time to talk to me and I felt comfortable with him even though this was my first time meeting him. I would absolutely recommend him.

April 24, 2018

Very knowledgeable about my condition. The Dr. was patient and answered all my questions. I have a great deal of trust in his ability to resolve my problems.

April 17, 2018

I could not be happier with the care I have been given.