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Sub Specialty:
Surgical Oncology
Bloodless Medicine

Hospital Affiliation(s):
UPMC St. Margaret
UPMC Hamot
UPMC Northwest
UPMC Shadyside
Magee-Womens Hospital of UPMC
UPMC Horizon
UPMC Mercy
UPMC Passavant
UPMC Presbyterian

Language Spoken:

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


University of Pittsburgh Physicians

Liver Cancer Center
Womancare Center of UPMC Horizon (UPMC Liver Cancer Center at UPMC Horizon)
875 N. Hermitage Rd.
Hermitage, PA 16148
Office Phone:
(412) 748-6454

UPMC Hamot The Regional Cancer Center
2500 W. 12th Street
Erie, PA 16505
Office Phone:
(412) 748-6454

UPMC Butler
104 Technology Dr.
Suite 202
Butler, PA 16001
Office Phone:
(412) 748-6454

UPMC Northwest
100 Fairfield Dr.
Seneca, PA 16346
Office Phone:
(412) 748-6454

UPMC Passavant - McCandless (UPMC Passavant Cancer Center)
9100 Babcock Blvd.
Pittsburgh, PA 15237
Office Phone:
(412) 748-6454

UPMC Montefiore
3459 Fifth Ave.
Liver Cancer Center
Pittsburgh, PA 15213
Office Phone:
(412) 692-2001


Surgery, American Board of Surgery


MD, Northwestern University - Feinberg, Chicago, IL

University of Pittsburgh School of Medicine,
Pittsburgh, PA

University of Pittsburgh School of Medicine,
Pittsburgh, PA

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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Patient Comments

Patient comments are gathered from our Press Ganey Patient Satisfaction Survey and are displayed in their entirety. Patients are de-indentified for confidentiality and patient privacy.

August 10, 2016

So glad my ins. pd. for me to see Dr. Geller. He has taken the worry away,I know I am in good hands for my treatment.Answered all my questions.Both nurses in his office very good also.

August 03, 2016

the best!!!

August 01, 2016

All Nurses, Doctor's, and administrative staff were very professional and courteous. I was treated like family and not just like a number. Every experience I have had with my follow-up visits at Doctor Geller's office has been positive and with compassion and excellent professional care.! God has truly blessed me with the level of concern and care I always receive from Doctor Geller and his entire staff!!

August 01, 2016

I just love Dr. David Gellar and his staff. I've been through alot and they are wonderful, caring individuals.

July 13, 2016

Dr. Geller and his staff are among the friendliest and professional staff I've had to pleasure to go to

July 06, 2016

we had a productive discussion about the plan of treatment. it was evident they had reviewed the record. however the revisit questionnaire that had be completed on the computer had not been pulled up.

June 29, 2016

Doctor Geller and his team are extremely professional and competent. I could not be in better hands.

June 23, 2016

Although my wait time was more than 15 minutes at this particular visit, this was not the normal situation for Dr.Gellar and his staff. In over 3 years of seeing him, this was the first time I ever had to waitHe apologized immediately when we got in the room and explained the reason for the wait. I had to add that in because I know that on surveys, you only see numbers and I think you should know that this pareticular day was the exception to the well-oiled machine of an office that Dr. Gellar has, both at Montefiore and when he comes to Northwest.

June 20, 2016

Dr. Geller has been my doctor, as it relates to my liver, from the very beginning. My concern is...if BC/BS and UPMC does not come to an agreement, I'll have to go to someone else and I don't want to do that. He knows my case and I'm extremely comfortable with him. I hope these two "giant's" (UPMC and BC/BS) can work it out in order for me and others associated with BC/BS will not be forced to change.

June 20, 2016