Mark Barash, DO

Critical Care Medicine, Pulmonary Disease
Assistant Professor
Accepting New Patients

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Pulmonary Medicine Clinic 414-805-6633
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Medicine is a delicate intersection of science and art. Fundamental to good patient care is the acknowledgement that the ‘right’ decision is the one obtained through mutual agreement, respect and share decision making. As a clinician, my job is to give you sound, evidence-based and compassionate advice and find ways to align my recommendations with your goals in health and well-being.

Medicine is a delicate intersection of science and art. Fundamental to good patient care is the acknowledgement that the ‘right’ decision is the one obtained through mutual agreement, respect and…
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I completed medical school in Chicago and went on to complete internal medicine residency and pulmonary and critical care medicine fellowship at the Medical College of Wisconsin. I take care of critically ill patients in the ICU and also practice pulmonary medicine in the outpatient setting. In the latter, my interests focus on the diagnosis and management of patients with scarring conditions of the lung (Interstitial lung disease). I am also interested in pulmonary complications of hematopoietic stem cell transplant (HSCT) as this group of lung disorders shares many characteristics of interstitial lung disease. I am passionate about medical education and take part in the mentoring of medical students, residents and fellows. Born in Russia, I speak the language fluently. Outside of work, I enjoy travelling, good food and being in nature. Having been an urban planning/Global change major in undergrad, I am fascinated by how our built environment can influence health outcomes.


Treatment & Services

Advanced Bronchoscopy
Post-COVID Pulmonary
Pulmonary Function Interpretation
Pulmonary Function Tests
Virtual Visit

Diseases & Conditions

Chronic Obstructive Pulmonary Disease (COPD)
Interstitial Lung Disease (ILD)
Interstitial Pulmonary Fibrosis (IPF)
Lung Disease Associated with Autoimmune Diseases
Pulmonary Complications of Hematopoietic Stem Cell Transplant
Pulmonary Embolism

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Hospital
Froedtert Menomonee Falls Hospital
Pulmonary Medicine - Center for Advanced Care - Froedtert Hospital

Education & Training

Chicago College of Osteopathic Medicine - Downers Grove - IL - Doctor of Osteopathic Medicine - (2014)

Medical College of Wisconsin - Milwaukee - Internship & Residency in Internal Medicine - (2014-2017)

Medical College of Wisconsin - Milwaukee - Fellowship in Pulmonary and Critical Care - (2017-2020)

Board Certifications

Internal Medicine
Pulmonary Disease
Critical Care Medicine

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.*


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I feel I'm very safe and in capable hands with Dr. Barash on my team. I can feel the legitimacy of his support and compassion with my current state, and he's very thorough in regards to explanation of medications/care plans and makes sure I'm 100% understanding and on board with what to expect before moving forward. He's honest and no-nonsense but in the best and most caring way possible. I couldn't ask for a better doctor.
Walk in at 7:45 am, everyone was happy and smiling. Made me feel good.
I was very happy with all that I met and worked with. Dr Barash was very good and was extremely happy with him.
Dr. Barash had been recommended to me by a friend, and I was very pleased with his thoroughness, kindness, and patience explaining things in the best way possible for me to comprehend.
I was very impressed with the doctor and feel Im in good hands. Very professional, educated and very well dressed.
Wonderful! I felt very validated and encouraged
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