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Internal Medicine
PCP (Primary Care Physician)

Hospital Affiliation(s):
UPMC Passavant
UPMC Shadyside

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


Greater Pittsburgh Medical Associates - UPMC
4490 Mount Royal Blvd.
Suite 1002
Allison Park, PA 15101
Office Phone:
(412) 487-8891

20630 Rte. 19
Cranberry Twp, PA 16066
Office Phone:
(724) 779-5005

193 43rd St.
Pittsburgh, PA 15201
Office Phone:
(412) 621-5227


Internal Medicine, American Board of Internal Medicine


DO, Philadelphia College of Osteopathic Medicine, Philadelphia, PA

St Francis Medical Center,
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.

March 06, 2018

I have been a patient of Dr. Lamb for over 20 years. I feel very comfortable with him and the time and care that he extends to my health.

March 06, 2018

I feel I am in good hands with Dr. Lamb.

March 05, 2018

Dr. William Lamb is an excellent Physician who always answers my questions and provides excellent care.

March 01, 2018

Dr. Lamb & staff are the best.

February 27, 2018

wm lamb is always the BEST

February 27, 2018

dr lamb was polite and apologetic for below details

February 26, 2018

Dr. Lamb is a very caring and a good doctor.

February 20, 2018

Dr Lamb is a very kind, caring and compassionate man. He is always very respectful and professional with his care and service. I would definitely recommend him to my family and friends.

February 19, 2018

Dr. Lamb is fantastic. I felt like he was attentive to all my concerns and never felt rushed.

February 14, 2018

Dr. Lamb knows me and my medical history very well. I trust his medical advice. He is very responsive to my emails (through MyUPMC), test results, and face to face visits. I am grateful to have him as my PCP.