Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Stephen Masaji Hashioka, DDS

Individual provider Dentist · NPI 1659409555

Dr. Stephen Masaji Hashioka, DDS is a Dentist in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
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.

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Practice location Address checks out

55 E Washington St Ste 1807
Chicago, IL 60602-2103
Phone: (312) 263-7661
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X (IL)

Record details

NPI number1659409555
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedMarch 1, 2007
Last updated in NPPESJuly 8, 2007

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