Our first priority is the health, wellness and safety of everyone who walks through our doors.

Bryn Mawr Medical Specialists Association is open for medically necessary office visits and procedures only. BMMSA as a corporation is taking all necessary precautions and following public health safety guidelines in regards to the COVID-19 pandemic.

TeleMedicine appointments are now available. Please contact your physicians office for eligibility, additional information, and with any concerns or questions.

If you are scheduled for an appointment with one of our doctors, we request that you call our office to reschedule your appointment if the answer is yes to any of the following questions:

  • Do you have a cough?
  • Do you have a fever?
  • Do you have any flu-like symptoms?
  • Do you have diarrhea?
  • Have you have traveled internationally in the past 14 days?
  • Have you had close contact with anyone who has traveled internationally in the past 14 days?

We encourage all of our patients to visit the CDC website and Main Line Health COVID-19 Response website to read more about everyday preventative measures and for the most up to date guidance regarding the Coronavirus (COVID-19). If you are concerned that you may have the Coronavirus (COVID-19), please contact your local Health Departments.

If you have any questions regarding our policy and your appointment, please call your doctor’s office.

Catherine A. Riley, M.D.

Pulmonary/Critical Care


  • Sleep Medicine

    Board Certified in October 2013
  • Critical Care Board

    Certified in October 2009
  • Pulmonary Medicine

    Board Certified in October 2008


Bryn Mawr Medical Arts Pavilion
825 Old Lancaster Road
Suite 420
Bryn Mawr, PA 19010

Phone: (610) 527-4896
Fax: (610) 525-4089

Education & Training

Medical School

Medical College of Pennsylvania/Hahnemann School of Medicine (Drexel University College of Medicine), Philadelphia, PA


Lankenau Medical Center, Wynnewood, PA


Thomas Jefferson University Hospital, Philadelphia, PA

Clinical/Dept Titles

Attending Physician

Publications & Presentations

  • May 2008 Poster presentation on “Alveolar macrophages obtained after allergen challenge in a murine asthma model regulate collagen metabolism in cultured fibroblasts: at the American Thoracic Society International Conference, Toronto, Canada.
  • December 2008 Riley, C, Kane, G. Approach to the Pulmonary Nodule. TheHospital Physician Board Review Manual: Volume 12 (part 4).
  • May 2006 Small group presentation on “Single Drug Therapy for the Treatment of MAI Infection” at the American Thoracic Society International Conference, San Diego, CA.

Profession & Society Memberships

  • 2009-Present – American Academy of Sleep Medicine
  • 2007-Present – American Thoracic Society
  • 2007-Present – American College of Chest Physicians
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