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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 (5)

The overall average patient rating of Dr. Grant Olson is Good. Dr. Olson has been reviewed by 8 patients who have provided 5 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 4.7
Courteous Staff 5.0
Accurate Diagnosis 3.7
Bedside Manner 4.3
Spends Time with Me 3.7
Follows Up After Visit 4.2

Specialties & Research

Dr. Grant Olson, MD is board certified in Allergy & Immunology and Pediatrics.

  • He has special expertise in 3 areas:
  • Asthma
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Nasal Allergy (Rhinitis)

Education & Awards

Dr. Olson graduated from University of Colorado, Denver. He has 2 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)
Compassionate Doctor Recognition (2014)


Dr. Olson has 14 hospital affiliations:

  • Centura Health Littleton Adventist Hospital 
  • Exempla Inc Saint Joseph Hospital 

> > > > Dr. Grant Olson, MD

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Additional Information
Dr. Grant C Olson MD is a male Allergist & Immunologist, has 28 years of experience and practices in Pediatrics and Allergy & Immunology.
Where does Dr. Grant C. Olson practice?
Dr. Grant Olson has 2 office locations.
Dr. Grant Olson practices Pediatrics and Allergy & Immunology near Denver, CO.
Additional practice locations include: Brighton, CO.
See Denver Pediatricians and Denver Allergists.