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. John O'Brien:
View the full profile to get information on:
- What's important to you
View full profile
The overall average patient rating of Dr. John O'Brien is Good.
|Ease of Appointment||
|Spends Time with Me||
|Follows Up After Visit||
Specialties & Research
Dr. John O'Brien, MD is board certified in Pediatrics.
- He has special expertise in 2 areas:
- Adolescent Medicine
Education & Awards
Dr. O'Brien graduated from University of Vermont, Burlington.
Dr. O'Brien has 4 hospital affiliations:
- York Hospital
- Memorial Hospital York
Similar doctors nearby
- Additional Information
- Dr. John O'Brien MD is a male Pediatrician, has 16 years of experience and practices in Pediatrics.
- Where does Dr. John O'Brien practice?
- Dr. John O'Brien has 4 office locations.
Dr. John O'Brien practices Pediatrics near Shrewsbury, PA.
Additional practice locations include: York, PA and Ottumwa, IA.
See Shrewsbury Pediatricians.