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 Magee-Womens Hospital
UPMC Presbyterian
UPMC Shadyside

Patient Satisfaction Ratings:
4.8 Stars
71 Patient
Satisfaction Ratings
Learn About Our Survey


UPMC Endocrinology and Diabetes Center
Falk Medical Building
3601 Fifth Ave.
Suite 562
Pittsburgh, PA 15213
Office Phone:
(412) 586-9700


Endocrinology, Diabetes & Metabolism, American Board of Internal Medicine


MD, Columbia University Hospital, New York, NY

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

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

Mara Horowitz is an excellent doctor and listened to my health concerns and gave me good clear answers. She is also very nice!

October 22, 2019

Dr. Horwitz is an excellent doctor and is very thorough in her exam. She is a kind and caring person and I trust her expertise in helping me to deal with my osteoporosis.

October 15, 2019

I appreciate Dr. Horwitz's thoroughness, caring manner and direct answers to my questions. She is a highly knowledgeable and skilled physician and I will continue under her care.

October 15, 2019

Respect her knowledge and insight

October 08, 2019

always treats me with respect and seems to care about me

July 09, 2019

great doctor

July 02, 2019

Mara Horwitz, MD is an excellent physician. The staff at the Falk Center, Endocrinology Division is also very good and follows up if I have questions or if they have questions about my health or medication.

July 02, 2019

wonderful and responsive doctor and office helpers!!

June 11, 2019

Dr. Horwitz makes me feel that she cares about my health.

June 04, 2019

Dr. Horwitz is outstanding in her field. She makes me feel that she definitely cares about my well being.