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

Dr. Leonard Walter Ostrowski III, DDS

Individual provider Dentist · NPI 1225276504

Dr. Leonard Walter Ostrowski III, DDS is a Dentist in Tustin, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
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

13721 Newport Ave Ste 1
Tustin, CA 92780
Phone: (714) 368-1400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 58004 (CA)

Record details

NPI number1225276504
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJanuary 26, 2009
Last updated in NPPESJanuary 26, 2009

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