Sher Allergy Specialists

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11200 Seminole Blvd Ste 310
Largo, FL 33778
Sher Allergy Specialists (SAS) is led by Board-Certified Allergy & Immunology Specialists Drs. Mandel Sher & Johana Castro Wagner who are dedicated to diagnosing & treating Food Allergies (often an underlying cause of stomachaches, anxiety, & more), Skin & Nasal Allergies, Hives, Sinus, Asthma, Cough & all allergic conditions in children, teens & adults. SAS accepts most insurance and offers In-Office, Telehealth & Same Day Appointments for allergy testing & cutting edge treatment: allergy shots, oral immunotherapy, biologics & clinical trials. In 2023, Dr. Sher was awarded Tampa's Doctor of the Year and voted 2023 Top Doctor by peers. SAS serves patients from Largo, Seminole, St. Petersburg, Clearwater, Belleair, Pinellas Park & more.
Skin Allergies? We offer safe & effective testing.

Reviews

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4.57 reviews
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Toni T.
6/5/2025

Excellent care and service by Dr CASTRO WAGNERs team with JENNY at front desk, CATHY medical assistant and P.A. LYNETTE. They provided scratch allergy testing and patch allergy testing to help me...

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Summer Q.
3/1/2024

I saw Dr. Castro Wagner yesterday, and she was helpful, thorough, and caring. She listened to me well and explained everything well. She gave me a sample of Trelegy Ellipta and after just one...

Jack J.
4/26/2024

Hands down the best Allergist in the world. Dr. Sher and his staff are compassionate, friendly, and knowledgeable. I enjoyed my experience there despite getting poked during every visit.

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Neal Z.
10/17/2022

Dr. Sher has been a great help to me. I have had an issue for years. Dr. Sher diagnosed the issue quickly and most Importantly accurately. Give Stars for sure.

Melinda N.
9/24/2021

I have been having a reaction for several weeks while traveling, and it's been challenging to find a thorough doctor. I have several health conditions which are interfering with treatment, so it's...

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