Search for a UPMC doctor near you

Narrow your search:

To speak with an appointment scheduler, call 1-800-533-UPMC between 7 a.m. and 7 p.m. Monday through Friday.

Note: We can schedule appointments for many — but not all — UPMC doctors and locations at this number.

Verify Your Insurance

Please call the physician's office to verify insurance coverage prior to scheduling an appointment.


Internal Medicine

Sub Specialty:

Hospital Affiliation(s):
UPMC Shadyside
UPMC Passavant
UPMC Presbyterian
UPMC Mercy
UPMC St Margaret

Patient Satisfaction Ratings:
5 Stars
184 Patient
Satisfaction Ratings
Learn About Our Survey


UPMC Heart and Vascular Institute
UPMC Presbyterian
200 Lothrop St.
Suite 5B
Pittsburgh, PA 15213
Office Phone:
(412) 647-6000

UPMC St. Margaret - Medical Arts 200
200 Delafield Rd.
Suite 3010
Pittsburgh, PA 15215
Office Phone:
(412) 781-4860

50 Berry Rd.
Washington, PA 15301
Office Phone:
(724) 222-1125


Advanced Heart Failure and Transplant Cardiology, American Board of Internal Medicine
Cardiovascular Disease, American Board of Internal Medicine


MD, Columbia University Hospital, New York, NY

Massachusetts General Hospital,
Boston, MA

Massachusetts General Hospital,
Boston, MA

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

Rate the Provider

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.

February 04, 2019

good experiences

January 16, 2019

very impressed with this portion of my care for the FIRST time in a long time I am truly optimistic about my ongoing health

January 14, 2019

Dr. Mathier and his staff were great. I can't say enough how the experience was much more than I expected from a "typical" doctor visit. The nurses, P.A. and Dr. Mathier were all kind, respectful, easy to speak to and I felt as if they genuinely cared about my condition. There was an upbeat and warm feeling among the staff that is contagious.

January 11, 2019

Went in trying to be angry with provider because they blew my appt. off twice. But after meeting with him I changed my mind and have a great deal of respect for him

January 07, 2019

I really like Dr. Matthier. He is very knowledgeable, professional, he is also very caring and compassionate.

January 02, 2019

Very concerned for my health and willing to explore other options.

December 20, 2018

Dr. Mathier is like the rest of the care team I have for my heart. They are the BEST any one could ask for. I will stay with and ask for UPMC always, I couldn't be happier with my treatments and care. God Bless them ALL.

December 19, 2018

Excellent experience.

December 06, 2018

As I have had a heart condition since I was 32, at that time at heritage valley I was told if I made it 2 years I would be lucky, I am now 64, this is all because of the care from upmc and my doctors.

December 06, 2018

De Mathier spent as much time with me as I expect and explained my condition thoroughly in terms that I understand.