Dear Patients,

It is with sadness and anticipation that I am announcing my retirement from Allentown Asthma and Allergy. It has been one of the joys of my life to be able to care for and develop relationships with each and every one of you over the last 25 years. However, it is now time for me to move to the next stage of life. I would not feel comfortable retiring, if I were not leaving the office in the hands of Dr. Zemble and our amazing staff. Dr. Zemble and I have worked together for the past 10 years and I have complete confidence that he will continue to treat you with the same caring and expertise with which I have attempted over my time at Allentown Asthma and Allergy. I am also excited to welcome Rachel Fulmer PA-C to our office.  I wish the best for all of you and will dearly miss the privilege of being your physician.



Howard A. Israel, M.D.

Helpful Links

We provided a list of informational websites that talk about Allergy, Asthma and Immunology.

Check here for any changes in hours due to inclement weather.  You may also visit our Facebook page or


Weather Alerts


We see patients of all ages and specialize and treat a wide variety of conditions.

Offering Food Oral Immunotherapy (OIT)


See our Injection Hours and know about our requirements when visiting for an injection. 

Important Office

Our Doctors have the most up-to-date knowledge on conditions to better treat our patients.


Learn more about  Dr. Robert Zemble. Also, meet our highly qualified Nurses.

e-Prescribing Made Easy

Our office offers e-prescribing! Your prescription will be sent electronically - much quicker and more efficient! Please allow 24 hours for prescriptions to be forwarded to your pharmacy. Written prescriptions may be picked up or you may prefer to provide us with a self-addressed stamped envelope.


Providing you with the best doctors for the best care

Robert M. Zemble, M.D.,

Robert Zemble, M.D. joined our practice in July 2009 and sees patients of all ages.  He is board certified in Adult and Pediatric Allergy and Immunology as well as Internal Medicine. Dr. Zemble received his training in Allergy and Immunology through the Hospital of the University of Pennsylvania and the Children's Hospital of Philadelphia.  He received his training in Internal Medicine at Columbia University's hospital, New York Presbyterian Hospital. He attended medical school at Temple University School of Medicine where he was a member of Alpha Omega Alpha Honor Society and received his undergraduate degree from Duke University where he graduated magna cum laude and was elected to the Phi Beta Kappa Honor Society.  Dr. Zemble is the current Chief of the Division of Allergy at Lehigh Valley Hospital.  In his free time, Dr. Zemble enjoys hiking with his wife Susanna, son Leo, daughter Eden.

Rachel B. Fulmer PA-C

Rachel Fulmer, PA-C will be joining our practice in June 2019.  She is a board-certified physician assistant. She graduated with honors from the PA program at Arcadia University in 2016. Rachel also graduated Summa Cum Laude in 2014 with a Bachelor of Arts in Biology from Arcadia University. She brings with her experience working as a physician assistant in both the emergency department and later as a physician assistant in ENT and allergy. As a PA, Rachel believes in the importance of working closely with other members of the healthcare team to provide patients with the best care possible. She is a very caring provider who is sensitive to the needs of her patients. In her free time, Rachel is an avid equestrian.

The Staff

The Staff of Allentown Asthma & Allergy consists of highly qualified and experienced Registered Nurses, Medical Assistants and front office personnel.  Please do not hesitate to ask any one of us your questions - we are here to help!

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