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

Dr. William John Costello III, DMD

Individual provider General Practice Dentistry · NPI 1417052556

Dr. William John Costello III, DMD is a General Practice Dentistry in Philadelphia, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2006.

Licensed in
PA
In the registry since
2006
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

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Practice location Address checks out

7215 Passyunk Ave
Philadelphia, PA 19142-1525
Phone: (215) 336-8478
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence DS036827 (PA)

Record details

NPI number1417052556
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorNo
NPI enumeratedSeptember 13, 2006
Last updated in NPPESJuly 8, 2007

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