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

Dr. William Joseph O'Brien, DDS

Individual provider Prosthodontics · NPI 1285657957

Dr. William Joseph O'Brien, DDS is a Prosthodontics in Milwaukee, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
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.

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Practice location Address checks out

5900 N Port Washington Rd Ste B262
Milwaukee, WI 53217-4503
Phone: (414) 332-7450
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Prosthodontics (primary) Taxonomy 1223P0700X · Licence 4279 - 15 (WI)

Record details

NPI number1285657957
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESJuly 8, 2007
Mailing address5900 N Port Washington Rd, Suite B262, Milwaukee, WI 53217-4503

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