Linus John H Santo Tomas, MD, MS

Photo of Linus Santo Tomas
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.


Treatment & Services

Critical Care Medicine
Pulmonary Function Interpretation
Virtual Visit

Diseases & Conditions

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

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 - WI - Fellowship in Pulmonary and Critical Care Medicine - (1996-1999)

Medical College of Wisconsin - Milwaukee - WI - 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.

Everyone was very caring and treated me well
He seemed a bit rushed that day but is so good about answering all questions. I trust him. That means a lot.
Dr Tomas Very helpful answered all questions I asked and took action to provide me support needed from other sources.
Wonderful experience and concern about my priblemst
This was my first office visit with pulmonologist Dr. Santo Tomas & first encounter with the Froedtert-MCW health system. My Aurora pulmonologist retired and Dr. Santo Tomas was "suggested" as a highly qualified physician which agreed with my independent prior research. Dr. Santo Tomas had detailed understanding of my background and we discussed appropriate medications & doses going forward. He thankfully realized that dosage was low/inappropriate for a key medication I had just started days before the office visit. I feel very confident that Dr. Santo Tomas will help address some of the issues I have been experiencing and improve my health.
Dr. Santo Tomas is monitoring me very carefully for my lung issues. He is thorough and very good at seeing the whole picture to best guide my treatment.
First visit was extremely satisfying. Tests were set up and initial treatment was established
Dr. Tomas is great all around. I always ask lots of questions and he listens and answers. He is very patient with me. I talk a lot.
A very smooth process!
Care & concern provided by Dr. Thomas & staff is always courteous pleasant & professional.
I was very impressed with Dr. Tomas. I look forward to working with him.
Postive experiencem
Dr. Santo Tomas is wonderful. He carefully reviewed my history and explained things clearly. I am very satisfied with the level of care I receive from Dr. Santo Tomas and highly recommend him.
My care at Froedtert is always outstanding
Dr. Santo Tomas is outstanding. Takes time with his patients. Very caring, knowledgeable, professional, and has a genuine interests in his patients.
Very pleased
Dr. Thomas was a knowledgeable and kind doctor to work with. We came to a mutual understanding of my overall health in this area and have concluded our visits. It was a pleasure to work with him.
Dr Tomas is a very thorough DR, he explains everything and suggests more testing to see if more could be done.
Dr Santo Tomas paid attention to my previous hospitalization and my concerns, and worked with me to develop a plan. Since we are not generally Froedtert patients Dr Santo Tomas left it to us to continue under his care or follow up with a Prohealth pulmonologist. We were very comfortable with Dr Santo Tomas and after consulting with our primary care doctor we are choosing to stay with Froedtert for this concern, following his suggestions.
Dr Linus Santo-Tomas is EXCELLENT with great bedside manner . I wish he could follow me to my next location.
Dr. Tomas was very concerned and explained all my issues clearly and a level I understood. The staff from check - in to just before the doctor entered was outstanding. I also wanted to address the help given once I entered the hospital from parking- excellent! People all over the hallways to direct us who are not familiar with such a big hospital.
Very happy with Dr Tomas
Received my normal thorough professional care. Totally satisfied with all aspects of my visit.
It's wonderful to have a Dr. That seems to care and connects with my other specialist to do things to help me!
I enjoyed my visit
What a wonderful facility!
Very knowledgeable and attentive doctor.
Dr. Santo Tomas was extremely professional in demeanor and appearance, yet personable and friendly. He is knowledgeable and instills complete confidence in his judgement. Very happy to have him for my doctor!
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