> > > > Dr. Dionisio Fernandes, MD
Dr. Dionisio A Fernandes MD is a male Allergist & Immunologist, has 42 years of experience and practices in Allergy & Immunology and Pediatrics.
Video profile
Dr. Dionisio Fernandes has 3 office locations.
Allergy Consultants Med GRP
20055 Lake Chabot Rd
Ste 220
Castro Valley, CA 94546

Phone Number
Locations and availability (3)
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).

Learn more about Dr. Dionisio Fernandes:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

  • Currently 3 of 4 stars
Patient comments (1)

The overall average patient rating of Dr. Dionisio Fernandes is Good. Dr. Fernandes has been reviewed by 6 patients who have provided 1 comments. The rating is 3 out of 4 stars.

Patient Ratings
Ease of Appointment 3.5
  • Currently 3.5 of 4 stars
Promptness 4.0
  • Currently 4 of 4 stars
Courteous Staff 4.0
  • Currently 4 of 4 stars
Accurate Diagnosis 3.4
  • Currently 3.4 of 4 stars
Bedside Manner 3.4
  • Currently 3.4 of 4 stars
Spends Time with Me 3.4
  • Currently 3.4 of 4 stars
Follows Up After Visit 3.3
  • Currently 3.25 of 4 stars

Specialties & Research

Dr. Dionisio Fernandes, MD is board certified in Allergy & Immunology and Pediatrics.

  • He has special expertise in 7 areas:
  • Allergy
  • Asthma
  • Atopic Dermatitis
  • Eczema
  • Food Allergy (Hypersensitivity)
  • Nasal Allergy (Rhinitis)
  • Pulmonology

Education & Awards

Dr. Fernandes graduated from Armed Forces Medical College, Pune.


Dr. Fernandes has 17 hospital affiliations:

  • Sutter Tracy Community Hospital 
  • St. Rose Hospital 


  • Hindi
  • Portuguese
  • Spanish
  • Vietnamese

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Additional Information
Where does Dr. Dionisio A. Fernandes practice?
Dr. Dionisio Fernandes practices Allergy & Immunology and Pediatrics near Castro Valley, CA.
Additional practice locations include: Tracy, CA.
See Castro Valley Allergists and Castro Valley Pediatricians.