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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 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

Fellowship - Cleveland Clinic
Pulmonary Disease
Cleveland, OH

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

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

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 - 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 1/16/2024, 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

155 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 4.7
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

23 Patient Comments

Reviewed on Jun 11, 2024

Excellent Doctor! Very knowledgable and communicates well with his patients.

Reviewed on May 24, 2024

My provider seemed genuinely concerned about me

Reviewed on May 17, 2024

Dr.was very through and at no time did I feel rushed or not the focus of his attention.

Reviewed on May 14, 2024

Both Doctor and fellow were excellent

Reviewed on Mar 16, 2024

Excellent doctors, very helpful!

Reviewed on Mar 8, 2024

Dr Loutfi Aboussouan and his secretary are the best !

Reviewed on Mar 8, 2024

The best doctor

Reviewed on Feb 21, 2024

I'm Very glad Dr. Aboussouan is my Dr. He is SO thorough and attentive!

Reviewed on Feb 9, 2024

Dr A explained my test results taken earlier that day. Since my lungs did not appear to be the reason behind my shortness of breath, Dr A went back through my records and looked at other medical possibilities. He made clear suggestions as to what actions I should consider next. Very pleasant and helpful.

Reviewed on Dec 15, 2023

The doctor arranged appointment for me less than 24 hours after I requested it. The virtual visit is a godsend.

Reviewed on Dec 8, 2023

Dr always ask if I have any other questions. I appreciate that I never feel rushed.

Reviewed on Dec 6, 2023

Scheduling all of our tests and Dr. Appointments went very well. We were able to get numerous tests and Dr visits scheduled inn a week time frame.

Reviewed on Nov 17, 2023

Dr. Aboussouan is very thorough with his examination and understanding of a patient's condition. I am always amazed at how completely he reviews and knows the patient's medical records, and history. He never rushes an office visit and completely explains the medicine and answers all questions. A remarkably prepared and dedicated doctor.

Reviewed on Oct 16, 2023

Dr. Aboussouan is knowledgeable, compassionate and thorough. I would highly recommend him to anyone in need of a pulmonologist.

Reviewed on Oct 11, 2023

Dr. Aboussouan is excellent.

Reviewed on Sep 25, 2023

Great Doctor!

Reviewed on Sep 18, 2023

Initially had trouble setting up the appointment via phone calls, but once I contacted Dr. Aboussouan via my chart had an appt quickly.

Reviewed on Sep 11, 2023

As I mentioned, we had nothing to really discuss at this visit, as I hadn't had the tests yet. Dr Aboussuan did speculate about what we would find (and he was correct), so it made making any concrete plans during the actual visit difficult.

Reviewed on Aug 23, 2023

I was thoroughly impressed with Dr A. He took the time to evaluate me and explained in an easy to understand way my issues and what we might to do help the situation. His "bedside manner" was one of the best I have ever encountered in my 71 years

Reviewed on Aug 8, 2023

I am 100% very pleased with my appointment with the doctor and his assistant.

Reviewed on Aug 2, 2023

Dr. A was very professional. He put my mind at ease in the manner in which he explained what was going on with me. It was not hard to get an appointment and once at the office, the atmosphere was clean and welcoming. Dr. A took the time to personally review my results and give me feedback before the day was over.

Reviewed on Jul 12, 2023

Dr A is so professional and listens. Very caring Dr.

Reviewed on Jul 11, 2023

The both the doctor and nurse were polite and respectful. They answered my questions thoroughly.

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