Dr. John P. Ducar, DDS

Practice details

Specialty: Periodontics
Credential: DDS
Address: 4201 Torrance Blvd Ste 450, Torrance, CA 90503
Phone: (310) 540-1415
NPI: 1720083397
NPI record since 2005

Frequently asked questions

Where is Dr. John P. Ducar, DDS’s office?

The NPI registry lists the practice address as 4201 Torrance Blvd Ste 450, Torrance, CA 90503.

What is Dr. John P. Ducar, DDS’s specialty?

The registered NPI taxonomy is Periodontics.

Is Dr. John P. Ducar, DDS licensed?

Dr. John P. Ducar, DDS is listed in the federal NPPES registry under NPI 1720083397 with the Periodontics taxonomy and a practice location in California. An NPI is an identifier, not a license, so confirm the current dental license with the California dental board and check the record on the NPPES NPI Registry.

When was Dr. John P. Ducar, DDS’s NPI issued?

According to the NPPES record, the NPI was first issued in 2005.

Verify NPI 1720083397 on the NPPES NPI Registry

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About periodontics: Periodontists treat the gums and the bone that supports the teeth. Their work includes managing gum disease, deep cleanings, gum grafts and, in many practices, placing dental implants.

Torrance has 568 dental listings in our directory, about 40.7 per 10,000 residents (population 139,576, 2024 Census estimate). This provider’s NPI was first issued in 2005.

Other dental providers in ZIP 90503

Sharon Phamduong, DDS, MS, INC. – Periodontics (same address)
Dr. Ahmad Z. Karimi, DMD – General Dentistry
Dr. Alicia J. Wolf, DMD – General Dentistry
Allied Dental Care – General Dentistry
Dr. Alyssa Alysson Ochiai – General Dentistry
Dr. Andrea J. Lim, DMD – General Dentistry

All periodontists in Torrance · Dental emergency checker · What affects dental costs · Low-cost dental care in California

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Questions to ask before your appointment

Are you accepting new patients, and how soon is the first available visit?
Do you accept my dental insurance or Medicaid plan, and will you send a pre-treatment estimate?
What will the first visit include and cost if I pay myself?
Who will treat me, and do you refer to specialists for anything I might need?
What are your hours, and how do you handle urgent problems after hours?
Is the office accessible, and is there parking or public transit nearby?

Data source: NPPES NPI registry (CMS), snapshot imported October 2026. Hours, insurance and prices are not part of the registry. Spot something out of date? Update practice information · How we build listings

About this listing

Dr. John P. Ducar, DDS practices in Torrance, California, with periodontics as the registered specialty. The NPI record dates from 2005. Insurance, hours and services are not in the registry, so please confirm them with the office.

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