Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William O'Brien, DDS

Individual provider Periodontics · NPI 1285851634

Dr. William O'Brien, DDS is a Periodontics in Slidell, Louisiana. Licensed in Louisiana. Registered with an NPI since 2007.

Licensed in
LA
In the registry since
2007
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2790 Gause Blvd E Ste 1
Slidell, LA 70461-4246
Phone: (985) 649-9359
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Periodontics (primary) Taxonomy 1223P0300X · Licence 3185 (LA)

Record details

NPI number1285851634
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedApril 19, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Slidell