What patients are saying
Overall rating
4.74
Average wait time
4.58
Bedside manner
4.72
“Dr. Bielory and his Nurse Lydia were two of the best I’ve ever seen in general . This was my first time ever seeing an allergist and they both were sincere , kind and explained everything . I felt beyond comfortable . The patients coming in out from what I can see and noticed were treated life family . Hands down one of the offices and staff . ”
Kristi F.December 11, 2023
“The staff and provider were friendly and helpful. The only thing I suggest is that because there is an extensive history questionnaire it should be given prior to the visit either mailed or on a online app.”
Barbara C.September 7, 2023
About Dr. Leonard Bielory
*Our friendly staff will call you before confirming your appointment time.*
Dr. Bielory earned his Doctor of Medicine from Rutgers, The State University of New Jersey. He completed his residency at the University of Maryland and pursued fellowships in Allergy and Immunology at the National Institutes of Health, National Institute of Allergy and Infectious Diseases, as well as in Hematology at the National Heart, Lung, and Blood Institute.
Previously, Dr. Bielory served as the director of the UMDNJ Asthma and Allergy Research Center and has consistently been selected as one of New Jersey and New York's "Top Docs" in metropolitan area surveys for the past 20 years.
He has been involved in various clinical trials and is presently focusing his interests on Climate and Allergic Airway Disease. His current EPA-funded research examines modeling the impact of allergies from pollen-producing plants such as trees, weeds, and grasses over the next 50 years. This work studies the effects of different temperatures and CO2 concentrations on the growth of ragweed, grasses, and other weeds, as well as evaluating their allergenic pollen content through immunological and biological assays, including electron microscopy.
Dr. Bielory serves on the ACAAI Website Editorial Board and is an active member of the Annual Program Committee, Conference Online Allergy Committee, Continuing Medical Education Committee, Medical Informatics Committee, and Scientific Council. He chairs the Joint Task Force Practice Parameters on Allergic Eye Disease. Additionally, he has served on several boards and trustees, including the JCAAI, and was president of the NJMS University Physician Associates Board of Directors.
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Office locations
1 of 2
Education and background
Practice names
Hospital affiliations
- Overlook Hospital
- Robert Wood Johnson University Hospital
- Saint Barnabas Medical Center
- Robert Wood Johnson University Hospital at Rahway
Board certifications
- American Board of Internal Medicine
- American Board of Allergy and Immunology
Education and training
- Medical School - Rutgers, The State University of New Jersey, Doctor of Medicine
- University of Maryland (Residency)
- National Institutes of Health, National Institute of Allergy and Infectious Diseases, Fellowship in Allergy and Immunology
- National Institutes of Health, National Heart, Lung, and Blood Institute, Fellowship in Hematology
- Lehigh University (Master's)
Professional memberships
- American Academy of Allergy, Asthma & Immunology
Awards and publications
- Castle Connolly Top Doctor
- 1985 American College of Allergy, Asthma and Immunology - Fellows Award
- 1985 American College of Allergy, Asthma and Immunology - von Pirquet Award
Languages spoken
- English
Provider's gender
Male
NPI number
1154352987
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.74
Wait time
4.58
Bedside manner
4.72
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
171 reviews
Most relevant
Dr.B is awesome. Thorough and super knowledgeable. The nurse practitioner is friendly and together they make a great team.
September 17, 2021Steven G.Verified patient
Dr. Bielory and his nurse practitioner were wonderful. Very nice, welcoming, fast and efficient. I highly recommend.
May 17, 2019Carlee P.Verified patient
The doctor was very knowledgable & knew exactly how to treat me. I've been feeling better since seeing Dr Bielory.
More than 1 year agoDC
He is excellent! He explained to us everything that he was going to do and why. I highly recommend him !
January 1, 2022Thomas M.Verified patient
Made me laugh, extremely knowledgeable, explained things to me like I was an equal. Highly recommended
November 3, 2020Jaclyn H.Verified patient
My experience was friendly and informative. Still going to find other allergies I may have.
September 25, 2023Jonathan C.Verified patient
Great visit. The doctor takes his time to completely understand what your concerns are
May 2, 2023Robert A.Verified patient
Everyone was warm, friendly and professional. I felt like the doctor understood my journey.
May 2, 2022Mary A.Verified patient
Very friendly and professional. Explained things very clearly and developed a plan of action
August 9, 2018Marcia K.Verified patient
Very friendly, knowledgeable, and calming. Easy to talk to and made things understandable.
July 9, 2021Joshua H.Verified patient
Dr. B is an expert in the field of immunology! I highly recommend him to all patients.
February 14, 2022Dawn S.Verified patient
Leonard was extremely helpful and clearly an expertise in the field. I highly recommend.
December 13, 2016Rachael R.Verified patient
Dr. Bielory is exceptional. I travel a great distance to see him & highly recommend him.
More than 1 year agoDB
Very professional staff. Everything was explained to me and I was very comfortable
October 2, 2020Sandy T.Verified patient
The office staff and the physician assistant rude and leaves much to be desired.
October 11, 2016Initials hidden
Friendly staff and Dr was very nice. I felt very welcome and comfortable.
February 25, 2023Claire H.Verified patient
Very nice visit. Doctor helped very much and had a great experience with him.
More than 1 year agoInitials hidden
Very good ... great staff and Dr was awesome ... thank you again !!
June 6, 2017Mary K.Verified patient
Very nice doctor and staff. Would definitely recommend!
April 17, 2023Claire H.Verified patient
Listened to us, and explained things well. Highly recommended.
July 23, 2019Zoe H.Verified patient
Very personable and takes time to explain the situation.
August 22, 2020Danielle C.Verified patient
Yes, I found this doctor and I highly recommend him ,
November 9, 2021Maria R.Verified patient
Dr. Bielory and his Nurse Lydia were two of the best I’ve ever seen in general . This was my first time ever seeing an allergist and they both were sincere , kind and explained everything . I felt beyond comfortable . The patients coming in out from what I can see and noticed were treated life family . Hands down one of the offices and staff .
December 11, 2023Kristi F.Verified patient
Great
October 15, 2023Marc C.Verified patient
The staff and provider were friendly and helpful. The only thing I suggest is that because there is an extensive history questionnaire it should be given prior to the visit either mailed or on a online app.
September 7, 2023Barbara C.Verified patient
What a wonderful doctor. He really took his time with me and seemed to truly care about my concerns. He answered all my questions. One of the best doctors I have ever experienced!
July 5, 2023Gina R.Verified patient
I would recommend visiting them because they are professional and they’re willing to go above and beyond to help you with your allergies.
June 8, 2023Jean Jael Eliazard S.Verified patient
It took a long time to be seen, when I finally was I was told I need to reschedule for next week because they cannot perform the exam since I am on medication for my issue. They should have told me not to take my medication or have rescheduled me immediately instead of having me wait around
May 31, 2023Mark P.Verified patient
Dr B is fantastic and he whole office team is delightful! They were patient, kind, and so helpful. I could tell we were in good hands.
May 11, 2023Jack K.Verified patient
Dr. Bielory is a rarity in today's society. He actually takes the time to listen to the patient, address any concerns and always has a great sense of humor.
I told him today that his is never able to retire unless he can find me a replacement that is equally as qualified as he is, which is something I believe will be impossible.
I came to Dr. Bielory with a rare condition, not only was he highly aware of the condition, he knew exactly how to treat it and saved my remaining hearing. He has been with me on this lengthy journey and the years since it has gone into remission. Thank you Dr. Bielory for being the wonderful doctor, human and friend.
His staff from Anita and his other staff are always friendly and courteous. They go out of their way to assist you. I highly recommend Dr. Bielory.
February 8, 2023Dianne S.Verified patient
I would definitely go back and I would definitely recommend this doctor. He makes you relax very funny. The staff is family very nice very insightful. Definitely will recommend.
January 24, 2023Louis G.Verified patient
the Dr. was great with my 5 year old son.
December 16, 2022Ngozi A.Verified patient
Wonderful staff. The dr. Was so warm and attentive. Listened to me and my concerns. I have been to two other doctors who were the opposite. Great experience!
December 14, 2022Leon V.Verified patient
The doctor was great in allowing me enough time to ask questions and gave me plenty of feedback and advice. He prescribed and recommended a number of things that I hope will help me!
August 11, 2022Initials hidden
Excellent service and very professoal
December 14, 2021Richard G.Verified patient
This doctor was curt and unfriendly when speaking directly with me, and was inappropriately using swear words with his staff within earshot of the patient room to express his frustration with my treatment. Very rude and demoralizing.
More than 1 year agoInitials hidden
Doctor B provided great advice and was very personable and thorough.
I would highly recommend him. The ladies in the office were pleasurable as well.
May 14, 2021Chloe P.Verified patient
Friendly, informative and very helpful!
May 4, 2021Matt C.Verified patient
I have been incredibly worried about my health, esp knowing I have a bunch of autoimmune things going on. Not only did the doctor look annoyed as I continuously spoke about my health and my past issues to explain my timeline the best I could. Mid way thru, he left. . He gave off the vibe that anything I said was something he’d either challenge, disagree with, roll his eyes/ huff and puff, as if I was wasting his time for trying to be insanely thorough. When he asked about my job, as I started saying what I do, he starts asking me how it is possible and yet again, seeming to undermine me. He did not even listen to a thing I said and he did not remotely try to. Yes, I have a lot going on - but that’s also why I went there. I bit my tongue esp when medicine and issues I’ve had since childhood, he was telling me “no,that is not what this is”or yet again, seemingly very condescending and rude. He couldn’t be bothered. He did not want to hear me, he wanted to hear himself. There was 0 help. I felt uncomfortable and rushed. I did not leave feeling confident or hopeful. I did not leave feeling anything but more stressed out because it felt like this was “too challenging “. I’m very confused by the “amazing bed side and listener” reviews. Never again.
More than 1 year agoInitials hidden
More than 1 year agoInitials hidden
Staff was very friendly and the doctor was professional. Dr. Bielory explained everything thoroughly and I had a pleasant time.
More than 1 year agoChristian L.Verified patient
Excellent visit. Clear explanations
More than 1 year agoInitials hidden
Extraordinary
More than 1 year agoInitials hidden
Arrived about 20 minutes early and were taken before our scheduled appointment time. Found Dr. Bielory and his staff to be courteous, knowledgeable and welcoming. Dr. Bielory was very thorough with going over my daughter's medical history while recommending what I believe is the proper treatment plan for her condition(s).
August 14, 2020Evelyn M.Verified patient
Everything was excellent! I would only suggest to bring more help on his team, but over all I am glad I made the right decision to go see him! Thank you Doctor Bielory and staff! :-)
October 19, 2018Sheena A.Verified patient
Dr. Bielory was very professional and helpful in testing my allergy to an immunization. He was thorough and willing to help me test additional allergies in the future.
June 6, 2017Gregory D.Verified patient
Great doctor. He was extremely thorough with testing me which I really appreciated. Make sure you definitely have a sense of humor also, he has a great one. This wouldn't be an honest review if I didn'tcomment on the wait time. For both my original appointment and my followup I waited about an hour!. So yes he is thorough but you have to make sure you clear a good chunk of your day for this visit. Definitely not a visit that will have you in and out. All that considered, I would go back!!
More than 1 year agoImani L.Verified patient
Although Dr. Bielory can be a bit rough around the edges and his bedside manner is not the greatest, I absolutely appreciate his thoroughness. I've been to many doctors who merely treat symptoms. Dr. Bielory works to get to the root of the problem and that's really what I care about most.
More than 1 year agoInitials hidden
Office staff is lazy and rude to say the least.
October 1, 2015Adrian L.Verified patient
very informative
September 10, 2015Trinity S.Verified patient
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How soon can I make an appointment with Dr. Leonard Bielory?
Generally, Dr. Leonard Bielory has appointments available on Zocdoc within 1 week. You can see Dr. Bielory's earliest availability on Zocdoc and make an appointment online.
Is Dr. Leonard Bielory accepting new patients?
Dr. Leonard Bielory generally accepts new patients on Zocdoc. You can see Dr. Bielory's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Leonard Bielory accept my insurance?
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Can I make an appointment with Dr. Leonard Bielory online?
Yes, you can make an appointment online with Dr. Bielory using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Leonard Bielory affiliated with?
Dr. Leonard Bielory is affiliated with Overlook Hospital, Robert Wood Johnson University Hospital, and Saint Barnabas Medical Center.
What practice does Dr. Leonard Bielory work with?
Dr. Leonard Bielory works with STARx Allergy & Asthma Center LLC.
Where is Dr. Leonard Bielory's office located?
Dr. Leonard Bielory has 2 office locations, including in Springfield and Wall Township, view full addresses on Dr. Bielory's profile.
Which board certifications does Dr. Leonard Bielory have?
Dr. Leonard Bielory is certified by American Board of Internal Medicine and American Board of Allergy and Immunology.
What are common reasons for patients to see Dr. Leonard Bielory?
Dr. Leonard Bielory frequently sees patients for Allergy Consultation, Allergy Testing, Rash, Sinus Problems / Sinusitis, and Sore Throat. You can see other visit reasons for Dr. Leonard Bielory on their profile.
What languages does Dr. Leonard Bielory speak?
Dr. Leonard Bielory speaks English.
How do patients rate Dr. Leonard Bielory in reviews?
171 patients have reviewed Dr. Leonard Bielory. The overall rating for this doctor is 4.74/5. They have a 4.72/5 rating for bedside manner and a 4.58/5 rating for wait time. You can read individual reviews and ratings on their profile.