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

Diane Costandi, DDS

Individual provider Periodontics · NPI 1053791046

Diane Costandi, DDS is a Periodontics in Seal Beach, California. Licensed in California. Registered with an NPI since 2015.

Licensed in
CA
In the registry since
2015
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 →

Practice location Address checks out

2999 Westminster Ave Ste 108
Seal Beach, CA 90740-5368
Phone: (562) 431-9739
Show map & directions

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

Specialties & licences

Periodontics (primary) Taxonomy 1223P0300X · Licence 61630 (CA)

Record details

NPI number1053791046
Entity typeIndividual (Type 1)
GenderFemale
Credentials DDS
Sole proprietorNo
NPI enumeratedJune 4, 2015
Last updated in NPPESJune 4, 2015
Mailing address2999 Westminster Ave, Suite 108, Seal Beach, CA 90740-5368

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