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Otolaryngologist (ear, nose, throat)
31 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).

Learn more about Dr. Oscar Alonso:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (5)

The overall average patient rating of Dr. Oscar Alonso is Good. Dr. Alonso has been reviewed by 18 patients who have provided 5 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.4
Promptness 4.0
Courteous Staff 3.6
Accurate Diagnosis 3.7
Bedside Manner 3.3
Spends Time with Me 3.3
Follows Up After Visit 3.0

Specialties & Research

Dr. Oscar Alonso, MD is board certified in Otolaryngology.

  • He has special expertise in 2 areas:
  • Laser Surgery
  • Sleep Disorders

Education & Awards

Dr. Alonso graduated from Rush Medical College, Chicago.


Dr. Alonso has 4 hospital affiliations:

  • Advocate Good Samaritan Hospital 
  • Elmhurst Memorial Hospital 


  • Italian
  • Spanish

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Additional Information
Dr. Oscar Luis Alonso MD is a male Otolaryngologist, has 31 years of experience and practices in Otolaryngology.
Where does Dr. Oscar L. Alonso practice?
Dr. Oscar Alonso has 1 office location.
Dr. Oscar Alonso practices Otolaryngology near Downers Grove, IL.
See Downers Grove Otolaryngologists.