Alexander N. Greiner, MD photo

Alexander N. Greiner, MD

Allergy & Immunology

Dr. Alexander Greiner has been making full strides in the Field of Allergy and Immunology since he graduated from Winthrop University Hospital in New York. After completing his fellowship with the University of California in San Diego, he joined as an Assistant Clinical Professor in the Department of Medicine at the University of California, San...

Languages Spoken

  • › English

Board certifications

  • › American Board of Internal Medicine
  • › American Board of Allergy and Immunology

Hospital affiliations


  • › State University of New York (SUNY) - Upstate
  • › Winthrop-University Hospital
  • › University of California San Diego Medical Center

Memberships & associations

  • › John F. Aloia award for academic achievement, scholarship and clinical excellence
  • › Long Island Allergy and Asthma Society; American Board of Internal Medicine; American Academy of Allergy Asthma and Immunology; American Board of Allergy and Immunology
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