Highlights
Age Groups Seen
- Child
- Adolescent
- Adult
Languages
- English
Gender
MaleEducation & Board Certifications
Education
- Fellowship: University of Virginia School of Medicine, 2018
- Residency: Eastern Virginia Medical School, 2016
- Internship: Eastern Virginia Medical School, 2014
- Medical Education: Eastern Virginia Medical School, 2013
Board Certifications
- Allergy and Immunology: American Board of Allergy and Immunology, 2020
- Internal Medicine: American Board of Internal Medicine, 2016
Research & Publications
See publications for this provider. (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
Cleveland Clinic physicians and scientists collaborate with industry to advance medical breakthroughs. These partnerships help commercialize discoveries for public benefit while maintaining scientific integrity. To ensure transparency and minimize potential bias, Cleveland Clinic reviews these relationships and publicly discloses when physicians/scientists receive significant compensation for consulting, serve in fiduciary roles, receive royalties, or hold equity interests related to their work. We manage potential conflicts through approval processes, annual reporting, and targeted management plans.
As of 2026-04-13, Dr. Preston 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.
Insurances Accepted
Video
Ratings & Reviews
5 out of 5
124 ratings, 54 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 4/13/2026
My 2nd time coming to see Dr. Preston & have no complaints! Love the friendliness I receive from any staff I encounter! Love that I feel welcomed here & taken serious! Dr. Preston is easy to talk to, listens, & doesn''t hesitate to speak what he suggests is in my best interest! Appreciate the hospitality & professionalism both times I''ve visited!
- 5 out of 5 starsReviewed on 3/23/2026
Dr. Preston is a fantastic provider and I feel very lucky to have found him.
- 5 out of 5 starsReviewed on 3/23/2026
Dr. Preston is an incredible person and caregiver. I have Alpha Gal Syndrome and the Cleveland Clinic and Dr. Preston understood the disease more than any caregiver I have gone to. Dr. Preston was extremely caring of me and the state of my medical condition. The treatment plan that he prescribed is healing my skin lesions and making me much more comfortable.
- 5 out of 5 starsReviewed on 3/11/2026
Dr. Preston was excellent. He took the time to listen to my concerns and had great bedside manner. I loved him!
- 5 out of 5 starsReviewed on 2/27/2026
Very impressed with this doctors bedside manner. Engaging, informative, and calm demeanor.
- 5 out of 5 starsReviewed on 2/24/2026
I was very impressed with doctor.
- 5 out of 5 starsReviewed on 2/16/2026
Dr. Preston is the best provider I've ever encountered. His thoroughness, patient-centered treatment helped me rule out allergies as the source of my complex health conditions. Singlehandedly saved me months of other appointments and searching for answers in immunology. He is so incredibly easy to talk to and isn't afraid to show his human side.
- 5 out of 5 starsReviewed on 2/5/2026
Doctor was incredible! Very patient answering questions, and thorough explaining everything.
- 5 out of 5 starsReviewed on 2/5/2026
Dr. Preston was very thorough and explained everything clearly. I did not feel rushed and he listened to my concerns. After leaving I felt a sense of relief about my situation.
- 5 out of 5 starsReviewed on 2/3/2026
Dr preston is so caring and informative. I always feel comfortable and confident in his care.
- 5 out of 5 starsReviewed on 2/3/2026
Dr. Preston made me feel instantly at ease. He recognized my comprehension of the problem and addressed the conversation in that manner. Dr. Peston conveys his vast knowledge, professionalism , kindness and concern in a calm and precise way. Not only my questions but also my husband's questions were answered without an impression of annoyance. Dr. Preston made me feel as though I was his only patient on that day. He arranged for me to see his colleague in Amherst with whom I am equally pleased. Dr. Preston is an extraordinary gentle, gentleman. I would highly recommend him as your choice for an Allergist.
- 5 out of 5 starsReviewed on 12/29/2025
Absolutely best office staff and Md experience
- 5 out of 5 starsReviewed on 12/29/2025
Best care provider. Did not feel rushed
- 5 out of 5 starsReviewed on 12/2/2025
Dr Preston was informative, pleasant and personable. I would recommend him highly.
- 5 out of 5 starsReviewed on 11/21/2025
He made sure every question and concern I had was addressed in addition to educating me on some things I hadn't even considered. He's clearly passionate about what he does and is very knowledgeable with excellent bedside manner-I've already recommended him to several friends.
- 5 out of 5 starsReviewed on 11/10/2025
Dr. Preston is one in a million! His personality and knowledge together make him a unique and caring human. I've already recommended him to several friends and family members.
- 5 out of 5 starsReviewed on 10/21/2025
Dr Preston is very thorough and spent quite a bit of time with me in explaining my concerns/condition. He has a wonderful personality and makes you feel at ease immediately. I would definitely recommend him
- 5 out of 5 starsReviewed on 10/21/2025
Dr Preston has a very professional practice. His staff is very professional also. All practices should be like his.
- 5 out of 5 starsReviewed on 10/21/2025
Dr Preston is the best. He is smart, listens gives appropriate explanations and is so kind. His practice and staff should be the example of how all patients should be treated and cared about. When Dr Preston talks and listens to me I feel cared about and what I have to say is very important.
- 5 out of 5 starsReviewed on 10/13/2025
Dr. Preston is a wonderful doctor. He is very knowledgeable and compassionate about my medical care.
- 5 out of 5 starsReviewed on 10/13/2025
Dr Preston is excellent. Extremely knowledgeable, Personable- overall a stellar provider.
- 5 out of 5 starsReviewed on 10/6/2025
Dr Preston is thorough, spent time listening to my concerns and was very responsive on how to help
- 5 out of 5 starsReviewed on 9/25/2025
I highly recommend Dr. Preston. He engages me in meaningful conversations that help guide treatment .
- 5 out of 5 starsReviewed on 9/15/2025
The care provider was one of the best I have seen in a long time.
- 5 out of 5 starsReviewed on 8/28/2025
It's always a good experience with Dr. Preston
- 5 out of 5 starsReviewed on 8/21/2025
Dr. Preston took time and described the entire process thoroughly. He was kind and recognizing my anxiety, was very calming. The nurse was extremely caring and kind. It was truly a great experience
- 5 out of 5 starsReviewed on 8/21/2025
Dr Preston is one of the most outstanding doctors I have dealt with. He has gone above and beyond to deal with difficult conditions, has dealt with insurance issues and communicated with other doctors. He has treated both of my children and myself. He treats us all with dignity, respect, compassion and answers any and all aQuestions. He has outstanding bedside manners and addresses my kids when he senses they are uneasy. He is a gem!
- 5 out of 5 starsReviewed on 8/20/2025
Best doctor by leaps and bounds!
- 5 out of 5 starsReviewed on 8/19/2025
Dr. Preston was professional .very thorough .
- 5 out of 5 starsReviewed on 8/12/2025
Dr Prestin is the nicest dr I've ever had. He not only fixes the problems I have, he also makes sure I totally understand what is going on and why it is necessary. I highly recommend him and think he definitely goes above and beyond.
- 5 out of 5 starsReviewed on 8/12/2025
Excellent doctor
- 5 out of 5 starsReviewed on 8/12/2025
Dr Preston was the best doctor I've ever seen. He literally listened to my every word and saved my life
- 5 out of 5 starsReviewed on 8/5/2025
Dr.Devon very professional and understanding.Im very happy to meet Him
- 5 out of 5 starsReviewed on 7/22/2025
LOVE DR PRESTON. Best doctor I have ever had. Thank you for everything you do
- 5 out of 5 starsReviewed on 7/22/2025
Doctor was excellent
- 5 out of 5 starsReviewed on 7/22/2025
This was hands down, the best experience I've ever had with a doctor/staff in a hospital or doctors office setting. Dr. Preston is very knowledgeable and his passion is evident. He very clearly and thoroughly explained things to me and went above and beyond with details. Every nurse took extra care during check in, my scratch test, and my blood draw. I don't do well with needles and they made above and beyond accommodations to make it as painless as possible for me. I cannot recommend this team enough and will be referring anyone I can!
- 5 out of 5 starsReviewed on 7/15/2025
Dr. Preston is a very caring, intelligent, and thoughtful allergist. He will help you get the answers you need and treats you and your child with respect.
- 5 out of 5 starsReviewed on 7/15/2025
Dr. Preston engages me in meaningful and very productive conversations about my care. He is a wonderful doctor.
- 5 out of 5 starsReviewed on 6/16/2025
Could not ask for a better doctor! So thorough and explained things so well so my teenager could also understand. Very engaging and so knowledgeable, it was almost fun being at the doctor!
- 5 out of 5 starsReviewed on 6/16/2025
AWESOME WE LOVE DR PRESTON!
- 5 out of 5 starsReviewed on 6/10/2025
Dr. Preston is a phenomenal physician. Very knowledgeable and personable. Thankful for his care
- 5 out of 5 starsReviewed on 6/10/2025
First visit to this practice. Dr. Preston and team exemplary. Thank You!
- 5 out of 5 starsReviewed on 5/29/2025
Extremely GOOD LISTENING DOCTOR and SHOW the CARE
- 5 out of 5 starsReviewed on 5/29/2025
GOOD DOCTOR
- 5 out of 5 starsReviewed on 5/23/2025
Dr. Preston makes himself available to his patients!
- 5 out of 5 starsReviewed on 5/23/2025
Dr. Preston is a very intelligent, caring professional who makes it clear that he enjoys taking care of his patients. He is very good at problem-solving with his patients and makes very helpful suggestions as to how to manage their symptoms.
- 5 out of 5 starsReviewed on 5/21/2025
Dr. Preston is one of the best physicians I have seen. He is so caring and thorough. He explains everything. He has messaged me at least 3 times since my visit. My husband and I were so impressed with his care. He is exceptional.
- 5 out of 5 starsReviewed on 5/21/2025
Dr. Preston is a strong patient advocate.
- 5 out of 5 starsReviewed on 5/21/2025
The best care - what a team You can tell how much they respect Dr. Preston.
- 5 out of 5 starsReviewed on 5/20/2025
We engaged in a thorough conversation about pros and cons of treatment options. He is a wonderful physician who cares deeply about his patients.
- 5 out of 5 starsReviewed on 5/13/2025
I appreciate all everyone does to make this a good experience as registering for an appt, having a virtual with Dr. Preston and the follow-up with his office was a very good experience. Everyone was very helpful, knowledgeable and kind. Your staff deserves to be credited for the wonderful job that they do.
- 5 out of 5 starsReviewed on 5/13/2025
Dr. Preston is a top-notch professional who is very knowledgeable in his field. He took the time with me to explain my care and what I needed to do at home. He always gives you a feeling you are in good hands and a great representative of the Cleveland Clinic. I would highly recommend him and his staff to others. They are an exceptional group of professionals with a very kind, caring and helpful attitude. I can't say enough good about them and believe they should be recognized for their professionalism and respect for others.
- 5 out of 5 starsReviewed on 5/5/2025
Dear Dr Devon Preston at Cleveland Clinic Lakewood Family Health Center,I wanted to take a moment to express my heartfelt gratitude for the exceptional care I've received at your office. Dr. Preston has single handedly been a beacon of hope, a true blessing during one of the most challenging times in my life. His passion for medicine and dedication to his patients is truly remarkable.From our very first appointment, it was clear that Dr. Preston genuinely cares about his patients' well-being. His thorough explanations and compassionate approach made all the difference as I navigated through my illness. I truly appreciate the time he took to ensure I understood my treatment options and felt supported every step of the way.Thank you for all that you do. I feel incredibly fortunate to have Dr. Preston as my doctor.With all my gratitude,Audrey S
- 5 out of 5 starsReviewed on 4/29/2025
Dr. Preston was very informative... Explained my issues an treatments... Great doctor...