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Internal Medicine
PCP (Primary Care Physician)

Hospital Affiliation(s):
UPMC Mercy

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


Pittsburgh Internal Medicine Associates - UPMC
UPMC West Mifflin
1907 Lebanon Church Rd.
Suite 101
West Mifflin, PA 15122
Office Phone:
(412) 653-8440

UPMC Mercy Greentree
969 Greentree Rd.
Pittsburgh, PA 15220
Office Phone:
(412) 920-0700

UPMC Mercy Brentwood
4190 Brownsville Rd.
Pittsburgh, PA 15227
Office Phone:
(412) 885-0100


Internal Medicine, American Board of Internal Medicine


MD, Drexel/Hahnemann University College of Medicine, Philadelphia, PA

UPMC Mercy Hospital,
Pittsburgh, PA

Appointment Information

New Patients

Book Your Appointment NowIf you are a new patient, you can schedule your appointment online now 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.

October 29, 2019

I told Dr. Zimmerman about the problems that I am having with my eye for the past six months. He was more sympathetic than the eye doctors I have been seeing. He was very concerned and helpful.

October 29, 2019

Dr. Zimmerman is very personable and a pleasure to deal with. He understands my medical history which makes each visit easier. Always offering tips and suggestions for medical tests that I should be considering given my age.

October 29, 2019

I am fortunate to have Dr. Zimmerman as my healthcare provider. He is an excellent physician and person.

October 28, 2019

all good

October 28, 2019

I have had excellent health care from Dr Zimmerman for over 25 years. I won't see another Dr. No one else had given me the attention and good medical advice the he has. Caring, compassionate, and a great bedside manner. Highly recommend him.

October 25, 2019

Dr. Zimmerman is an excellent doctor. He takes the time to understand me as a patient. He is thorough in his efforts and communication.

October 24, 2019

Dr Zimmerman is absolutely the BEST !!

October 22, 2019

feel good about how Dr Zimmerman talked with me

October 17, 2019

dr Zimmerman is the best provider.

October 17, 2019

everyone was very helpful and polite