Thomas Jefferson UniversitySidney Kimmel Medical College

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For Patients

Who We Are

  • Ross Summer, MD, Associate Professor of Medicine, physician-scientist who specializes in treatment of interstitial lung disease and engages in laboratory investigation to better understand the molecular mechanisms driving the development of lung fibrosis.
  • Sandra Weibel, MD, Assistant Professor of Medicine, specializes in treatment of interstitial lung disease and has been a leader in treatment of scleroderma lung disease at Thomas Jefferson University for over 15 years.
  • Michael Scharf, MD. Associate Professor of Medicine, specializes in treatment of pulmonary hypertension and has extensive experience with treatment scleroderma-related PAH.
  • Mani Kavuru, MD, Professor of Medicine, has recognized expertise in several disorders including sarcoidosis and pulmonary alveolar proteinosis.
  • Sergio Jimenez, MD, Professor of Medicine, Director of the Scleroderma Center has been committed to the study of Scleroderma and to the treatment of patients with Scleroderma for over 30 years.
  • Fabian A. Mendoza-Ballesteros, MD, Assistant Professor of Medicine, Department of Rheumatology, specializes in treatment of all aspects of scleroderma.
  • Jennifer Sloan, MD - Assistant Professor of Medicine, Department of Rheumatology, specializes in treatment of all aspects of connective tissue diseases.
  • Joel Rosenbloom, PhD- Professor of Medicine, renowned leader in area of fibrosis research.
  • Achala Donuru, MD. – Instructor, Highly experienced chest radiologist
  • John Farber, MD.– Professor of Pathology, world-renowned expert in lung pathology.
  • Scott Cowan, MD. – Thoracic surgeon
  • Nate Evans, MD. Thoracic surgeon

How to Schedule an Appointment

Call 1 800-JEFFNOW and ask the operator to schedule a new patient visit with Dr. Summer or Dr. Weibel for an evaluation of ”interstitial lung disease”.  Alternatively, one can either call our pulmonary offices directly by dialing (215) 955-5161, option 2 or by e-mailing one of our physicians at or

How to Get Here

Your Initial Evaluation

The first step for patients referred to our clinic is to undergo a comprehensive evaluation to determine the cause and the best course of treatment for their disease. This involves a multidisciplinary discussion with teams of physicians and nurses specializing in Pulmonary, Rheumatology, Pathology and Radiology.  The goal of this team is to firmly establish a diagnosis and to outline clear treatment objectives.

Diagnostic Tests, Procedures and Clinical Activities Available:

The workup and management of interstitial lung disease is often complicated and involves an array of diagnostic tests and procedures

  • Evaluation of potential inciting factors, such as medications, collagen vascular disease, occupational or other inhalational exposures
  • Pulmonary function testing
  • High resolution lung CT scan
  • Flexible fiberoptic bronchoscopy or video assisted lung biopsy
  • Review of all of these studies to determine the type of interstitial lung disease
  • Use of immunosuppressive or immunomodulatory therapy
  • Innovative therapies for refractory disease
  • Referral for lung transplant evaluation
  • Referral to lung rehabilitation programs
  • Right heart catheterization