Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM K PARK DDS
NPI 1003434499
Dentist - General Practice in Lake Forest, CA

Q: What is William Park's NPI number?

The NPI number for William Park is 1003434499. It was assigned to this individual provider in the NPPES registry on July 11, 2020.

Q: What is William Park's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for William Park was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 11, 2020

26741 RANCHO PKWY STE 105-A, LAKE FOREST, CA 92630(949) 716-4892 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 7, 2022, Oct 19, 2021, Jul 11, 2020 (3 updates tracked since 2020).

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About Dr. William K Park Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM K PARK DDS (NPI 1003434499) is an individual general practice provider in Lake Forest, California, licensed in California (106661) and active in the NPI registry since July 2020.

NPPES Registry Identity

NPI1003434499

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. WILLIAM K PARKCredential: DDS

Location Address26741 RANCHO PKWY STE 105-ALake Forest, CA 92630-8710

Mailing Address4846 Valley View Ave Ste BYorba Linda, CA 92886-3600 · (909) 973-4964

Phone(949) 716-4892

Sole ProprietorYes

Enumeration DateJuly 11, 2020

Last NPPES UpdateJuly 2, 20263 updates tracked since enumeration

NPPES CertifiedJuly 2, 2026

✔ NPI 1003434499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in CA · 106661

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

26741 RANCHO PKWY STE 105-A, Lake Forest, CA 92630

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Park's NPI number?

The NPI number for William Park is 1003434499. It was assigned to this individual provider in the NPPES registry on July 11, 2020.

Where is William Park located?

William Park practices at 26741 Rancho Pkwy Ste 105-A, Lake Forest, CA 92630. The listed phone number is (949) 716-4892.

What is William Park's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does William Park accept?

Health plans from BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and HRI Dental & Vision and 4 other insurers list William Park as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Park was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.