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Allergy & Immunology Specialist, Internist
33 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Diana Marquardt, MD is board certified in Allergy & Immunology and Internal Medicine.

  • She has special expertise in 4 areas:
  • Anaphylaxis
  • Asthma
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Nasal Allergy (Rhinitis)

Education & Awards

Dr. Marquardt graduated from Washington University at St. Louis, Saint Louis. She has 2 awards.

Bridges to Excellence Recognition
Physician Office Systems Recognition (2016 - 2018)
Level III
NCQA Physician Practice Connections - Patient Centered Medical Home (2016 - 2019)


Dr. Marquardt has 3 hospital affiliations:

  • Scripps Mercy Hospital San Diego 
  • Children's Hospital - San Diego 
  • Sharp Grossmont Hospital 


  • Spanish

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Additional Information
Dr. Diana Lee Marquardt MD is a female Allergist & Immunologist, has 33 years of experience and practices in Allergy & Immunology and Internal Medicine.
Where does Dr. Diana L. Marquardt practice?
Dr. Diana Marquardt has 1 office location.
Dr. Diana Marquardt practices Allergy & Immunology and Internal Medicine near San Diego, CA.
See San Diego Allergists and San Diego Internists.