Linus John H Santo Tomas, MD, MS

Associate Professor


  • Moorland Reserve Health Center
  • 4805 S. Moorland Road
  • New Berlin, WI 53151


  • Critical Care Medicine
  • Pulmonary Disease

New & Established Patients Call

I seek to listen and understand. To cure if we can; and treat for comfort if we can't. To care, always.

Voted one of the Best Doctors in America®


Diseases and Conditions

  • Asthma
  • Chronic Cough
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Emphysema
  • Interstitial Lung Disease (ILD)
  • Occupational Lung Disease
  • Pneumonia
  • Tuberculosis

Treatments and Services

  • Bronchoscopy
  • Critical Care Medicine
  • Pulmonary Function Interpretation
  • Virtual Visit

Patients Ages Seen

  • Adult
  • Senior


  • Filipino
  • English

Hospital Affiliations

  • Froedtert Hospital – Milwaukee

Board Certifications

  • Internal Medicine
  • Pulmonary Disease
  • Critical Care Medicine

Clinic Locations


Since joining the Froedtert & the Medical College of Wisconsin in 2002, Dr. Santo Tomas has led teams tasked to improve patient care and outcomes for hospital and clinic patients. Though he sees a wide variety of respiratory diseases, colleagues in pulmonary medicine have particularly sought his assistance and second opinion on patients with work-related lung disease, interstitial lung disease and pulmonary complications in hematopoietic stem cell transplant patients. He has been voted by his peers to the Best Doctors list every year since 2005.

Education and Training

Doctor of Medicine - University of the Philippines College of Medicine - Manila (1991)
Residency in Internal Medicine - Cleveland Clinic - Cleveland, OH (1993-1996)
Fellowship in Pulmonary and Critical Care Medicine - Medical College of Wisconsin - Milwaukee, WI (1996-1999)
Master of Science - Medical College of Wisconsin - Milwaukee, WI (1999)