Allergy & Immunology Specialist, Internist
28 years of experience
Video profile
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).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Joseph Diaz is Good. Dr. Diaz has been reviewed by 16 patients who have provided 3 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 4.5
Courteous Staff 4.3
Accurate Diagnosis 4.6
Bedside Manner 4.3
Spends Time with Me 4.6
Follows Up After Visit 4.2

Specialties & Research

Dr. Joseph Diaz, MD is board certified in Allergy & Immunology and Internal Medicine.

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

Education & Awards

Dr. Diaz graduated from The University of Texas at Galveston. He has 1 awards.

On-Time Doctor Award (2014)


Dr. Diaz has 11 hospital affiliations:

  • University Hospital - San Antonio 
  • St Luke's Baptist Hospital 


  • Spanish

> > > > Dr. Joseph Diaz, MD

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Additional Information
Dr. Joseph David Diaz MD is a male Allergist & Immunologist, has 28 years of experience and practices in Internal Medicine and Allergy & Immunology.
Where does Dr. Joseph D. Diaz practice?
Dr. Joseph Diaz has 2 office locations.
Dr. Joseph Diaz practices Internal Medicine and Allergy & Immunology near San Antonio, TX.
See San Antonio Internists and San Antonio Allergists.