Deb Lonzer, MD


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Deb Lonzer, MD
Department: Community Pediatrics
Department Chair
Location: Willoughby Hills Family Health Center
Mail Code WH-10
2570 SOM Center Road
Willoughby Hills, OH 44094
Deb Lonzer, MD
Department: Pediatric Institute
Vice Chair of Outpatient Operations
Location: Cleveland Clinic Main Campus
Mail Code WH-10
9500 Euclid Avenue
Cleveland, OH 44195
Type of Doctor:
Children & Adolescents Only

Biographical Sketch

Deb Lonzer, MD, is a board-certified pediatrician and the Chair of the Department of Community Pediatrics for the Cleveland Clinic Children’s Hospital. She is an Assistant Professor of Pediatrics at (CWRU) School of Medicine and is active in training medical students and residents.
Dr. Lonzer began practicing pediatrics at Willoughby Hills Family Health Center in 1995.  She is listed in “Best Doctors in America” and has won awards for her teaching and her research.  She is involved in developing multimedia educational programs for kids and their parents, beginning with the topic of potty training.  Dr. Lonzer previously co-hosted You The Radio Show with Dr. Mike Roizen and is a frequent guest on a variety of local and national news programs.  She is also frequently quoted by print and web-based health information outlets.
Dr. Lonzer is a graduate of The Hershey Medical Center of the Pennsylvania State University and completed her training in pediatrics at Cleveland Clinic Children’s Hospital.  Her areas of clinical practice interest include preventive healthcare for kids of all ages, comprehensive asthma care, treatment of injuries like minor fractures and lacerations, and comprehensive general pediatric and adolescent healthcare.

Professional Highlights

  • Chair, Department of Community Pediatrics
  • Interim Chair, Department of Pediatric Hematology/Oncology
  • Co-Director, Leading in Healthcare, Cleveland Clinic
  • Assistant Professor of Pediatrics, CWRU
  • Member, Cleveland Clinic Board of Governors, 2011-
  • President, Cleveland Clinic Medical Staff, 2010-11
  • Involved in education of patients and families, see

Education & Fellowships

Residency - Cleveland Clinic
Cleveland, OH USA
Internship - Cleveland Clinic
Cleveland, OH USA
Fellowship - Penn State Geisinger-Milton S. Hershey Medical Center
Hershey, PA USA
Undergraduate - Bucknell University
Lewisburg, PA USA


  • Pediatrics

Specialty Interests

ADHD, ADHD/School Failure, Adolescent Issues, Adolescents, Asthma, Asthma Care, Attention Deficit Disorder, Breastfeeding, Child Development, General Pediatric Health, Infectious Diseases, Healthy Newborn Care, Menstrual Disorders, Newborn Care, Newborns, Pediatric Infectious Disease, pediatrics, and other Toddler Behavior Issues, Preventive Pediatrics, Respiratory Illness, Young Child Care

Awards & Honors

Best Doctors in America

Additional Training

  • Leadership courses through Cleveland Clinic Center for Leadership and Learning
  • MMM courses through ACPE

Innovations & Patents

Developing a dual track learning system for parents and their kids to better understand health issues that affect children


  • Fellow of the American Academy of Pediatrics
  • American College of Physician Executives
  • American Medical Group Association

Treatment & Services

Specialty in Diseases and Conditions

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. The 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, the Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 11/18/2014, Dr. Lonzer 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 the Cleveland Clinic. To learn more about the 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.

Languages Spoken

  • English