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Internal Medicine
PCP (Primary Care Physician)

Hospital Affiliation(s):
UPMC Hamot

Patient Satisfaction Ratings:
4.9 Stars
168 Patient
Satisfaction Ratings
Learn About Our Survey


Greenfield Internal Medicine
300 State St.
Suite 103A
Erie, PA 16507
Office Phone:
(814) 877-8540


Internal Medicine, American Board of Internal Medicine


MD, Indiana University School of Medicine, Indianapolis, IN
MS, University of Pittsburgh School of Medicine, Pittsburgh, PA

University of Pittsburgh School of Medicine,
Pittsburgh, PA

VA Medical Center - Highland Drive,
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.

April 02, 2019

I was greeted and welcomed as a new patient. Receptionists were all aware of me and took excellent care. My provider was pleasant and welcoming. She gave me more time than I have ever had with a provider and offered ways to contact her easily. Invited me to call with any problem at any time.

April 02, 2019

Dr. M Benson is an incredible doctor, I was so fearful to see a new physician but her genuine concern and professionalism is a warm surprise! as a disabled RN it is such a blessing to have a new doctor who cares and immediately knows your needs faster than I realize my own medical needs.

March 25, 2019

She is excellent and professional.

March 18, 2019

l like my doctor.very happy with her.

March 04, 2019

My health care provider listened to my concerns and worked on a strategy to help me. She was very attentive and compassionate.

February 28, 2019

This was my first visit with this health care provider. She was excellent. Explained and asked me a number of questions about my health.

February 25, 2019

I had a great experience with my appointment. Thank you

February 11, 2019

Dr. Maggie Benson, my internist at UPMC, is fantastic to have to care for me!!! She is very thorough in every aspect of my personal care at UPMC!!!! She is a caring doctor; I know I am in good hands!!!! I just started with her as my internist!!! UPMC is lucky to have her; she comes well qualified!!!!! You could not ask for anything more. I'm grateful for her in caring for me!!! I've chosen the best! My visit was very beneficial!!!! I have a great feeling about the care I'm given!!!!!

February 11, 2019

Like this doctor very down to earth and caring.

February 08, 2019

Very good