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Department Center for Pediatric Pulmonary Medicine
Primary Location Cleveland Clinic Main Campus
Type of Doctor Children & Adolescents Only
Languages English
Surgeon No
Locations Specialties & Treatments

Treatment & Services

  • Bronchoscopy
  • Center for Pediatric Pulmonology
  • Diagnosing Asthma
  • Exhaled Breath Analysis
  • Pulmonary Function Testing
  • Spirometry
  • Treating Asthma with Bronchodilators
View all 7 Treatment & Services +

Specialty in Diseases & Conditions

  • Acute Sinusitis
  • Aerodigestive Tract Disorders
  • Asthma
  • Asthma Causes and Triggers
  • Breathing Complaints
  • Bronchiectasis
  • Bronchiolitis Obliterans
  • Bronchitis
  • Bronchopulmonary Dysplasia
  • Chronic Cough
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Cough
  • Croup
  • Cystic Fibrosis
  • Dyspnea
  • Exercise-Induced Asthma
  • Interstitial Lung Disease (ILD)
  • Lung Disorders
  • Muscular Dystrophy
  • Pediatric Airway Disorders
  • Pediatric Allergic Conjunctivitis
  • Pediatric Allergic Rhinitis
  • Pediatric Allergies
  • Pediatric Asthma
  • Pediatric Asthma, Occupational
  • Pediatric Bronchiolitis
  • Pediatric Croup
  • Pulmonary Alveolar Proteinosis (PAP)
  • Pulmonary Arterial Hypertension (PAH)
  • Pulmonary Disease
  • Pulmonary Hypertension
  • Pulmonary Insufficiency
  • Radiation Fibrosis - Lung
  • Respiratory Failure
  • Respiratory Illness
  • Respiratory Syncytial Virus (RSV)
  • Respiratory Viruses
  • Rheumatoid Lung Disease
  • Sinusitis - Chronic
  • Spinal Muscular Atrophy
  • Upper Respiratory Tract Infections
  • Vocal Cord Dysfunction
View all 42 Specialties +


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About Nathan Kraynack, MD

Nathan C. Kraynack, M.D. was appointed to Cleveland Clinic Children’s in 2013 to the Pediatric Institute and Center for Pediatric Pulmonary Medicine. He is the Director of the Cleveland Clinic's accredited Cystic Fibrosis Center and the Director of the Pediatric Cystic Fibrosis Program at Cleveland Clinic Children's. 

He has been board-certified in pediatrics and pediatric pulmonary medicine. He cares for children and young adults with all forms of pediatric lung conditions such as asthma, bronchopulmonary dysplasia, chronic lung disease of prematurity, chronic respiratory failure, and those children requiring technological assistance to breathe effectively. In particular, he has a keen interest in children with Cystic Fibrosis, other forms of bronchiectasis, end stage lung disease, and children and young adults with pulmonary disease as a complication of bone barrow and stem cell transplant. 

Serving as the head of a large accredited Cystic Fibrosis Center for almost ten years, he has a wealth of experience in caring for these patients with their complex medical needs. He and his team realized that inconsistent care for this condition across Cystic Fibrosis Care Center was prevalent and may be contributing to variable outcomes1. Heading a multidisciplinary team of caregivers, his team developed standardized protocols for cystic fibrosis care that had not previously been used and were associated with dramatic improvement in patient outcomes at their center. These protocols have since been adopted at other care centers nationally and internationally on at least three continents. His passion for standardized care has extended to nutritional protocols for patients with cystic fibrosis, non-cystic fibrosis bronchiectasis, inpatient management for patients with cystic fibrosis, asthma, and those patients with chronic respiratory failure and lung transplantation. 

Dr. Kraynack has been named one of the Best Doctors in America since 2009. He has been a principal investigator of translational research trials and a number of multicenter clinical trials for patients with Cystic Fibrosis.  As an Associate Professor of Pediatrics at the Cleveland Clinic Lerner College of Medicine and Case Western University and the Northeast Ohio Medical University (Rootstown, OH), he is active in medical education of medical students and pediatric resident physicians.

An invited lecturer at national and international medical meetings, Dr. Kraynack is a recognized expert in the field of Cystic Fibrosis and the implementation of Quality Improvement programs to improve patient outcomes.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Rainbow, Babies & Children University Hospitals
Pediatric Pulmonology
Cleveland, OH

Residency - Rainbow, Babies & Children University Hospitals
Cleveland, OH

Medical Education - Georgetown University School of Medicine
Washington, DC

Undergraduate - University of Pennsylvania
Philadelphia, PA


  • Pediatrics - Pediatric Pulmonology
Research & Publications

Research & Publications

See publications for Nathan Kraynack, 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 7/5/2023, Dr. Kraynack 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

48 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
5 out of 5
Explains 5
Courtesy, Respect & Concern 5
Time Spent with Patient 5
Patient Rating of Doctor 5

13 Patient Comments

Reviewed on May 15, 2024

Dr Kraynak is booking pretty far out

Reviewed on May 15, 2024

WE absolutely LOVE DR Kraynack!! He is so professional, kind and explains the disease process in detail. He spends his time explaining all of it and then waits patiently for any questions. We always leave feeling better then we came in and he does his best to assure us at every turn. We are so happy we found him!! Please, tell him.

Reviewed on Feb 27, 2024

Although we were not able to get in right away to see the doctor they did a great job of supporting our needs and connecting us with someone who could help.

Reviewed on Feb 27, 2024

Dr. K was extremely helpful and explained current research and options in a way that was easily understood. He provided options and talked in a way with my daughter that gave her the autonomy to express her needs and input on treatment plan moving forward.

Reviewed on Feb 23, 2024

Doctors nurse and himself were very kind and understanding.

Reviewed on Feb 21, 2024

We are so happy with this Physician

Reviewed on Jan 12, 2024

Dr. Kraynack was very attentive to a difficult to diagnose problem - He spent a lot of time explaining to us and following up.

Reviewed on Jan 12, 2024

Dr Kraynack has just been amazing to work with and I am so happy we found him. My son was having real difficulties with a constant cough and Phillips pediatrician was just on the fence about things so she referred us over to pulmonary. From the time that Dr Kraynack walked in the exam room to the time we left, we just felt so at ease. His knowledge base coupled with his expertise just means the world to us. Thank you so much!!! I cannot say enough good things about DR Nathan Kraynack!!!

Reviewed on Jan 12, 2024

Great job to Dr Kraynack and his staff. He has helped my son so much and the ease at which this was done, no complaints. Superb care!!

Reviewed on Dec 20, 2023

Dr Kraynack is always very thorough and so good at explaining what is going on, how the medicines work, etc. He always encourages me to call with any questions or concerns even on nights and weekends. He and his staff are the best!

Reviewed on Dec 8, 2023

Dr. Kraynack spent more than 40 minutes with us explaining my daughter's condition and giving complete, easily - understood rationales for his treatment recommendations.

Reviewed on Sep 8, 2023

Dr Kraynak has taken care of my child through the good and bad. He has built a fantastic relationship with him and know if we have a problem he will definitely help.

Reviewed on Aug 9, 2023

Dr. Kraynack is consistently thorough at explaining everything and preparing us. He is always open to answering questions and explaining everything. He makes my daughter feel comfortable going to the doctor. He is so knowledgeable about his specialty and keeping up with pertaining current issues to help us prepare. So thankful he was the doctor that was on call during our hospital visit.

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