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Allergy & Immunology Specialist, Pediatrician
36 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. Sean O'Brien:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Sean O'Brien is Good. Dr. O'Brien has been reviewed by 8 patients who have provided 2 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.2
Promptness 3.9
Courteous Staff 4.2
Accurate Diagnosis 4.5
Bedside Manner 4.5
Spends Time with Me 4.7
Follows Up After Visit 3.7

Specialties & Research

Dr. Sean O'Brien, 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. O'Brien graduated from University of Chicago. He has 1 awards.

Compassionate Doctor Recognition (2011)


Dr. O'Brien has 1 hospital affiliations:

  • Sinai Hospital Of Baltimore 

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Additional Information
Dr. Sean Robert O'Brien MD is a male Allergist & Immunologist, has 36 years of experience and practices in Allergy & Immunology and Pediatrics.
Where does Dr. Sean R. O'Brien practice?
Dr. Sean O'Brien has 1 office location.
Dr. Sean O'Brien practices Allergy & Immunology and Pediatrics near Baltimore, MD.
See Baltimore Allergists and Baltimore Pediatricians.