Department Pulmonary Medicine
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages Arabic, English, French
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Long-Term Ventilator Care
  • Mechanical Ventilation
  • Oxygen Therapy
  • Polysomnogram
  • Positive Airway Pressure Titration (cpap; Bilevel Pap Titration)
  • Pulmonary Function Testing
  • Sleep Medicine
  • Sleep Studies
  • Treating Asthma With Bronchodilators
View all 9 Treatment & Services +

Specialty in Diseases & Conditions

  • Amyotrophic Lateral Sclerosis (ALS)
  • Asthma
  • Bronchitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Cough
  • Emphysema
  • Neuromuscular Disease
  • Pneumonia
  • Pulmonary Disease
  • Sleep Apnea
View all 10 Specialties +


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About Loutfi Aboussouan, MD

Loutfi S. Aboussouan, MD, FCCP, was born in Beirut, Lebanon. He has been a Staff Physician in the Respiratory Institute of the Cleveland Clinic since 2003, and additionally in the Neurological Institute since 2007.

He is board-certified in pulmonary disease, critical care medicine and sleep medicine. His interests include general pulmonary medicine, chronic obstructive pulmonary disease, neuromuscular diseases, sleep medicine, long-term ventilator care and teaching. He has been the Director of Pulmonary Curriculum for the second-year class of the Cleveland Clinic Lerner School of Medicine since 2006.

Dr. Aboussouan received College Teaching Awards at Wayne State University in Detroit, Mich., in 1999 and 2003, and received the CCLCM preclinical Kaiser Award for Excellence in Teaching in 2014. He has been elected by his peers as one of the Best Doctors in America since 2001. He has been listed in the "Top Docs" issue of Cleveland magazine since 2006.

He has several publications in the fields of pulmonary, neuromuscular, and sleep medicine, and is a reviewer for several scientific journals.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Cleveland Clinic
Critical Care Medicine
Cleveland, OH USA

Fellowship - Cleveland Clinic
Pulmonary Disease
Cleveland, OH USA

Residency - Good Samaritan Hospital of Maryland
Internal Medicine
Baltimore, MD USA

Residency - Good Samaritan Hospital of Maryland
Internal Medicine
Baltimore, MD USA

Internship - American University of Beirut
Internal Medicine
Beirut, Lebanon

Medical Education - American University of Beirut
Beirut, Lebanon

Undergraduate - American University of Beirut
Beirut, Lebanon

Professional Highlights

  • Director of Pulmonary Curriculum for the second-year class of the Cleveland Clinic Lerner School of Medicine since 2006.


  • Internal Medicine - Pulmonary Disease
  • Internal Medicine - Critical Care Medicine
  • Internal Medicine - Sleep Medicine

Specialty Interests

Asthma, bronchitis, Chronic Obstructive Pulmonary Disease (COPD), Cough, emphysema, pulmonary disease, neuromuscular disease, sleep medicine

Awards & Honors

  • College Teaching Awards, Wayne State University, Detroit, Mich.,1999, 2003

    CCLCM preclinical Kaiser Award for Excellence in Teaching, 2014


  • Fellow, American College of Chest Physicians
  • Fellow, American Academy of Sleep Medicine
  • American Thoracic Society
  • American College of Physicians
Research & Publications

Research & Publications

See publications for Loutfi Aboussouan, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 1/17/2019, Dr. Aboussouan has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

146 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Listens 5
Courtesy, Respect & Concern 4.9
Knows Medical History 4.6
Time Spent with Patient 4.8
Patient Rating of Doctor 4.9

29 Patient Comments

Reviewed on Oct 2, 2019

doctor arranged visit when appts said none available

Reviewed on Oct 1, 2019

I was able to get an appointment because of a cancellation. For any Sleep Therapist at the Clinic the wait for an apportionment was months. You need more doctors or longer hours.

Reviewed on Sep 23, 2019

I wish I could have Dr. A as my physician in each area of expertise that I attend. He has such a gentle and caring spirit! He listens, asks questions and allows you to respond. He takes his time and even though I'm sure he has many patients, at that moment he makes you feel that you are his main concern at that time. You don't feel rushed. I'm only 51 years old but have been going to doctors over more than half my life. I have come by all types that you can allow your imagination to think of! My husband and I both felt the same way as we spoke about Dr. A and the appointment as we left the office. This was a nice experience for a change, thank you!

Reviewed on Sep 16, 2019

all did a great job. Doctor very caring

Reviewed on Sep 16, 2019

Doctor L spent a great deal of time, was very thorough, and explained everything clearly.

Reviewed on Sep 4, 2019

Dr. Aboussouan was outstanding. He took the time to listen to whole history of what was going on. He was the first doctor to be able to answer my questions and give me a explanation of why the symptoms may be happening. He gave me a few different options of possible treatments and what he thought about them

Reviewed on Aug 5, 2019

Dr. Aboussuan is the best physician at the clinic. He is outstanding. Always dignified, courteous, professional, respectful and everything good anyone hopes for in a physician.

Reviewed on Jul 10, 2019

Dr Aboussouan is exceptional thourough as is Dr Heresi

Reviewed on Jun 4, 2019

I love Dr. Aboussouan and the nurse LaTonya. Both are wonderful!

Reviewed on Jun 3, 2019

I travel 4 hrs. one way to see *Dr. Aboussouan. I trust his judgment. He is thorough and knowledgeable.

Reviewed on Jun 3, 2019

As always love seeing this doctor as he is very informative

Reviewed on May 15, 2019

Dr. L is wonderful. He listens intently, asks helpful questions and makes sure I understand and participate in my own care.

Reviewed on May 15, 2019

It took a long time to get the first appointment. They were booked way out a few months. Everyone was great and the doctor was very helpful, asked me alot of questions and entered all info . He took his time and was very thoural.

Reviewed on May 1, 2019

Awesome Doctors! Smart and very inquisitive.

Reviewed on Apr 15, 2019

Dr. Aboussouan is a very outstanding doctor. If I ever moved from Cleveland I would come back to keep him as my pulmonologist. Can't say enough about his skills and attitude.

Reviewed on Apr 12, 2019

I have the utmost respect for Dr. Aboussasan. I look forward to having him evaluate my condition and to take his recommended advice.

Reviewed on Apr 10, 2019

Dr. Pioro is amazing in every aspect, but I didn't have time to ask my questions in person.

Reviewed on Apr 10, 2019

Appropriate time alloted with all other team members. Dr. Pioro's wisdom and importance to my case after several months (and dramatic changes in my health) caused me concern at feeling squeezed for time.

Reviewed on Mar 13, 2019

Dr. Aboussouan is really a patient and understanding with his patients. Great listener and he explains everything so clearly.

Reviewed on Mar 11, 2019

My situation is a little complicated and I get overwhelmed. Dr Aboussouan was and is very patient in helping me understand next steps.

Reviewed on Mar 5, 2019

Dr. Aboussouan was so remarkable in that he rearranged his schedule to see us, when we had made a mistake with scheduling.

Reviewed on Feb 20, 2019

Dr. was very patient and thorough. Listened and reviewed progress since last visit. I would recommend him to others.

Reviewed on Feb 1, 2019

*Dr. Aboussouan and his staff were caring, thoughtful, thorough, and professional. I couldn't have asked for better!

Reviewed on Jan 25, 2019

I am very confident in my Dr and the staff they take very good care of me. I feel that they all have my best interest. Thank you

Reviewed on Jan 8, 2019

Dr contacted me immediately through my chart and dealt with all problems.

Reviewed on Jan 8, 2019

Dr is extremely caring, and a very good listener. He asked all necessary questions to get more information from me

Reviewed on Nov 15, 2018

The physician was attentive and very caring, and extremely knowledgeable. Although he typed while we talked he looked at me the entire time-wonderful eye contact. Gracious manner, compassionate.

Reviewed on Oct 24, 2018

Best Doctor's visit I have ever had. He knew everything about me before I got in the room

Reviewed on Oct 5, 2018

Confirmed appointment with Doctor for 1.30pm. Finally met with him at 3.45pm!! Spent more than 2 hours in waiting area after completion of breathing test waiting to see doctor!

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