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DR. MARC HAYASHI D.M.D.
NPI 1598077851
Dentist - General Practice in Los Angeles, CA

Active since July 02, 2010
100 MEDICAL PLAZA DRIVEWAY SUITE #350, LOS ANGELES, CA 90095(310) 794-5750(310) 825-2951 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 30, 2025, Oct 4, 2021 (2 updates tracked since 2021).

About Dr. Marc Hayashi D.m.d. NPPES

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

DR. MARC HAYASHI D.M.D. (NPI 1598077851) is an individual general practice provider in Los Angeles, California, licensed in California (60054) and active in the NPI registry since July 2010.

NPPES Registry Identity

NPI1598077851
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. MARC HAYASHICredential: D.M.D.
Location Address100 MEDICAL PLAZA DRIVEWAY SUITE #350Los Angeles, CA 90095-2820
Mailing Address10833 Le Conte Ave, Chs 33-019Los Angeles, CA 90095-1668 · (310) 825-4855
Phone(310) 794-5750
Fax(310) 825-2951
Sole ProprietorNo
Enumeration DateJuly 2, 2010
Last NPPES UpdateDecember 30, 20252 updates tracked since enumeration
NPPES CertifiedDecember 30, 2025
✔ NPI 1598077851 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
Licenses✔ Licensed in CA · 60054✔ Licensed in WA · DE 60128317
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.

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 Marc Hayashi's NPI number?

The NPI number for Marc Hayashi is 1598077851. It was assigned to this individual provider in the NPPES registry on July 2, 2010.

Where is Marc Hayashi located?

Marc Hayashi practices at 100 Medical Plaza Driveway Suite #350, Los Angeles, CA 90095. The listed phone number is (310) 794-5750.

What is Marc Hayashi's specialty?

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

When was this NPI record last updated?

The NPPES record for Marc Hayashi was last updated on December 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.