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.

As per order of the Commonwealth of Pennsylvania, any person entering our office building is required to wear a face mask at all times. Patients will not be permitted to enter the building without a face mask.

All patients should expect to be phone screened by Bryn Mawr Medical Specialists Association staff for COVID-19 symptoms or exposures prior to their appointment and again upon arrival. Patients should also expect to be temperature screened upon arrival in the office.

If your answer to any of the following questions is “Yes”, we ask that you call to reschedule your appointment.

In the past 14 days, have you developed any fever, cough or shortness of breath?
In the past 14 days, have you developed any of the following new symptoms?

  • Body aches or muscle pains?
  • Chills or repeated shaking with chills?
  • Headache?
  • Sore throat?
  • New loss of taste or of smell?
  • Have you, or anyone you have close contact with, been recently referred for COVID-19 testing?

In the past 14 days, have you traveled outside of PA? If “Yes”, please call the office to notify us of travel BEFORE your appointment. Patients recently returning from travel restricted states or countries will be asked to reschedule their appointment.

For the safety of our staff and other patients, patient family members or companions are not permitted at this time to accompany patients to their appointments (unless medically necessary or the patient is a minor). Bryn Mawr Medical Specialists Association respectfully asks family members or companions to wait outside or safely in their vehicle.

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.

Clarke U. Piatt, M.D.

Pulmonary/Critical Care


  • Internal Medicine

    Board Certified in 1998
  • Pulmonary Medicine

    Board Certified in 2000
  • Critical Care Medicine

    Board Certified in 2003
  • Sleep Medicine

    Board Certified in 2003


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

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

Areas of Clinical Interest

  • Asthma
  • COPD
  • Advanced Ling Disease
  • Pulmonary Fibrosis
  • Lung Cancer
  • Interstitial Lung Disease
  • Mycobacterial Lung Disease
  • Obstructive Sleep Apnea
  • Advanced Home Respiratory System
  • Support with NIPPV/Ventilator Systems
  • Sarcoidosis
  • Pulmonary Rehabilitation

Education & Training

Medical School

Temple University School of Medicine


Temple University Hospital


Temple University Hospital


  • Bryn Mawr Hospital – On staff since 2001
  • Lankenau Hospital – On staff since 2001
  • Paoli Hospital – On staff since 2001

Clinical/Dept Titles

Medical Director, Critical Care, Bryn Mawr Hospital

Recent Clinical Studies Published

  • Kurello-Katany S.E., Piatt C.U. and Katlic M.R.: “Trichobezoar: A Missed Diagnosis”, Surgical Rounds. 18 103-104, 1995.
  • Piatt C.U. and O’Brien GU. “Parenchymal Injury and Inflammation.” Pulmonary Pathophysiology. Ed. Criner, G. Fence Creek Publishing. 1998.
  • Piatt. C.U., Travaline, J.: “Smoking Cessation in COPD Patients.” Advances in Respiratory Care. May 2000
  • Piatt C.U., “Critical Care Endocrinology.” Critical Care. Ed. Criner, GU. Fence Creek Publishing. 1999. (publication pending).
  • Piatt C.U., Martin U., Criner GJ. “Principles of Mechanical Ventilation.” Critical Care. Ed. Criner, GU. Fence Creek Publishing. 1999. (publication pending).
  • Piatt C.U, O’Brien, GU., Boiselle P., Criner, GJ, “Pulmonary Nodules in Asymptomatic Severe COPD: Pathologic Findings and Radiographic Correlations.” (abstract ATS 2000, article submitted for publication 1/2001 to Chest).
  • Piatt C.U., Criner GJ., “Measurement of Native Lung Hyperinflation in Patients with Single Lung Transplant for COPD with CT Chest” (abstract for presentation ATS 2001/goal for publication 2001).

Recent Honors, Awards, Citations

Current Memberships & Activities

  • American Medical Association
  • American Thoracic Society
  • Amercian College of Chest Physicians
  • American Academy of Sleep Medicine
  • Pennsylvania Medical Society
Browse available departments: