Johana Castro Wagner, MD Allergy & Immunology and Allergist/immunologist

Johana Castro Wagner, MD

Allergy & Immunology and Allergist/immunologist
Largo, FL 33778
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Patients’ Perspective

  • Easy scheduling
  • On-time appointments
  • Trusted diagnosis

About Johana Castro Wagner MD

Johana Castro Wagner, MD is a health care provider primarily located in Largo, FL. She has 13 years of experience. Her specialties include Allergy & Immunology and Allergist/immunologist.


Sher Allergy Specialists 11200 Seminole Blvd #310 Largo, FL 33778


Johana Castro Wagner has the following 2 specialties

Specialty Expertise

Johana Castro Wagner has the following 37 areas of expertise

  • Allergic Reaction & Anaphylaxis
  • Angiodema
  • Asthma
  • Chronic Cough
  • Contact Dermatitis
  • Eczema
  • Eye Allergy
  • Food Allergy
  • Gastrointestinal Allergy
  • Headaches
  • Hives
  • Immunodeficiency
  • Nasal Allergy/Allergic Rhinitis
  • Peanut and Tree Nut Allergy
  • Pediatric Allergy and Asthma
  • Penicillin Allergy
  • Recurrent Infections
  • Sinusitis and Upper Respiratory Infection
  • Throat Clearing
  • Allergy Shots
  • Allergy Testing
  • Biologic Drug Treatment
  • Clinical Trials
  • Contact Patch testing
  • Cough Counter
  • Leicester Cough Questionnaire
  • Lung Function Test
  • Non-Pharmacologic Therapies
  • Oral Immunotherapy
  • Patient Education & Training for Sustainable Success
  • Peanut and Food Allergy Testing
  • Peanut Oral Immunotherapy (OIT)
  • Penicillin and Drug Testing
  • Pulmonary Function Test
  • Rhinoscopy
  • Skin Allergy Testing
  • Spirometry


13 Years Experience

Universidad Central De Venezuela

Graduated in 2009

University of South Florida Johns Hopkins All Childrens Hospital

Graduated in 2017

University of Texas

Graduated in 2015

Johana Castro Wagner Accepts the Following Insurance

  • Cigna
    • Cigna
  • Medicare
    • Medicare

More about Johana Castro Wagner

Dr. Johana Castro Wagner is an experienced Allergy, Asthma, & Immunology specialist double board-certified in Allergy/Immunology & Pediatrics. She joins Dr. Mandel Sher at top-rated Sher Allergy Specialists after 3 years with South Florida's largest allergy specialty group. Dr. Castro Wagner is a Pediatric & Adult Allergist specializing in Food Allergy, Asthma, Eczema, and Pediatric Allergic & Immune conditions. She leads the Oral Immunotherapy Clinic for Peanut Allergy at Sher Allergy Specialists, known for its personalized & cutting-edge treatment. Dr. Castro Wagner is fluent in Spanish & English. She is accepting new patients at Sher Allergy Specialists located in Largo, Fl. Telehealth, Same-Day, & In-Office appointments available.

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