Linus John H Santo Tomas, MD, MS

Critical Care Medicine, Pulmonary Disease
Associate Professor
Accepting New Patients

Call for an appointment

New & Established Patients Call 414-805-6633
Call for an appointment
Accepting New Patients
Call for an appointment
New & Established Patients Call 414-805-6633

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

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


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.


Diseases & Conditions

Chronic Cough
Chronic Obstructive Pulmonary Disease (COPD)
Interstitial Lung Disease (ILD)
Occupational Lung Disease
Pulmonary Embolism

Treatment & Services

Critical Care Medicine
Pulmonary Function Interpretation
Virtual Visit

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Hospital


Moorland Reserve Health Center Pulmonary Medicine - Center for Advanced Care - Froedtert Hospital

Education & Training

University of the Philippines College of Medicine - Manila - Doctor of Medicine - (1991)

Cleveland Clinic - OH - Residency in Internal Medicine - (1993-1996)

Medical College of Wisconsin - Milwaukee - Fellowship in Pulmonary and Critical Care Medicine - (1996-1999)

Medical College of Wisconsin - Milwaukee - Master of Science - (1999)

Board Certifications

Critical Care Medicine
Internal Medicine
Pulmonary Disease

Patient Reviews

The comments are submitted by patients (or their caregivers) and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of the Froedtert & the Medical College of Wisconsin health network. Learn more about our survey.*


* Due to high volume, only the most recent 30 comments are displayed for a selected value.

Love Dr. Santo Tomas.very kind,easy to talk with,expert in his field.
Dr Tomas is a very Dr, he listens to your concerns and explains what needs to be done and orders tests that he feels would give answers to problems.
Dr. Santo-Tomas was superior with care & explanations. Entire experience was fine
Listened well to my concerns. Had my information right at hand.
It was nice that the doctor did not prescribe a very expensive drug that I did not need. He was very nice about explaining why the drug could be prescribed, but didn't feel I was ready for it
Dr provided very good advice- very insightful
Dr. Santo Tomas is very thorough and makes sure I understand before we disconnect.
Dr. Paruchuri has been nothing short of excellent in the 5+ years I've been under her care. No other physician I've had prior, cared more about my well being and health. She is an asset to the Froedtert Family.
I always look forward to my appts with Dr. Santos. He has excellent listening skills. He hears all items on my agenda, asks questions and then makes caring decisions and explanations of all. Excellent clinician!
All of the staff do a great job
He agreed that I did not need to come and see him again in 6 months when I suggested a year would be better. So I will call to schedule for a year from now.
Dr Santo Tomas is a wonderful listener, excellent doctor. I would/have happily recommended him to others
Dr. Santos and the whole staff is a class act.
Doctor had gone back to a previous functional test from several years ago, and that information as well as his assuring statements regarding the current function test left me confident that at present, there was no cause for concern. He really listened as well, in spite of my admitted tendency to go on at length at times. Would strongly recommend this provider.
Dr. Santo Tomas has been a very thorough and caring physician.
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