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. William 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. William O'Brien is Good.
|Ease of Appointment||
|Spends Time with Me||
|Follows Up After Visit||
Prepare before visiting Dr. O'Brien
Eating Disorders Patient Education Read all about treatments and doctors to see for various eating disorders by reading our Vitals patient education guides.Before Visiting Dr. O'Brien Learn More
Specialties & Research
- He has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. O'Brien graduated from Nova Southeastern University , Davie.
Dr. O'Brien has 3 hospital affiliations:
- St. Mary Medical Center - Langhorne
- Frankford Hospital
- Temple Lower Bucks Hospital
Similar doctors nearby
- Additional Information
- Dr. William O'Brien DO is a male General Practitioner, has 20 years of experience and practices in General Practice.
- Where does Dr. William O'Brien practice?
- Dr. William O'Brien has 7 office locations.
Dr. William O'Brien practices General Practice near Levittown, PA.
Additional practice locations include: Bensalem, PA and Philadelphia, PA.
See Levittown Primary Care Doctors.