Diane Costandi is a Seal Beach, California based Periodontics who is specialized in
Periodontology. She may accept the Medicare-approved amount. Patients may be billed for more than the Medicare deductible and coinsurance. Her current practice location is
2999 Westminster Ave, Suite 108, Seal Beach. Patients can reach her at
562-431-9739.
Diane Costandi is specialized in that branch of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
Complete Profile:
Diane Costandi speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Name: | Diane Costandi |
| Specialization: | Periodontics |
| Gender: | Female |
| Credentials: | DDS |
| Accepts Medicare Assignment: | May Accept |
| Practice Address: | 2999 Westminster Ave, Suite 108, Seal Beach,
California, 90740-5368 |
| Phone: | 562-431-9739 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 1850686734 |
| Enrollment ID: | I20160817002389 |
| NPI Number: | 1053791046 |
| NPI Enumeration Date: | 04 Jun, 2015 |
| NPI Last Update On: | 04 Jun, 2015 |
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 2999 Westminster Ave, Suite 108
Seal Beach, California |
| Zip: | 90740-5368 |
| Phone Number: | 562-431-9739 |
Patients can reach Diane Costandi at
2999 Westminster Ave, Suite 108, Seal Beach, California or can
call to book an appointment on 562-431-9739.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on
08 December, 2025.