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

DR. COURTENAY MATSU M.D.
NPI 1770539520
Specialist in Honolulu, HI

Q: What is Courtenay Matsu's NPI number?

The NPI number for Courtenay Matsu is 1770539520. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Q: What is Courtenay Matsu's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Courtenay Matsu was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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 May 25, 2006

677 ALA MOANA BLVD, SUITE 1025, HONOLULU, HI 96813(808) 535-5975(808) 535-5976 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Courtenay Matsu M.d. NPPES

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

DR. COURTENAY MATSU M.D. (NPI 1770539520) is an individual specialist in Honolulu, Hawaii, licensed in Hawaii (MD12574) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1770539520

Entity TypeIndividualFemale

Primary Taxonomy174400000X

Provider Legal NameDR. COURTENAY MATSUCredential: M.D.

Location Address677 ALA MOANA BLVD, SUITE 1025Honolulu, HI 96813-5419

Mailing Address677 Ala Moana Blvd, Suite 1025Honolulu, HI 96813-5419 · (808) 535-5975 · Fax (808) 535-5976

Phone(808) 535-5975

Fax(808) 535-5976

Sole ProprietorNo

Enumeration DateMay 25, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1770539520 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in HI · MD12574

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

677 ALA MOANA BLVD, Honolulu, HI 96813

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Other Identifiers 1

Medicaid543068-03HI

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

UNIVERSITY CLINICAL EDUCATION & RESEARCH ASSOCIATES

Specialist

677 ALA MOANA BLVD, SUITE 1001
HONOLULU, HI 96813

Honolulu County (808) 469-4900

KATLIN E LEBOEUF MS CCC-SLP

Speech-Language Pathologist

677 ALA MOANA BLVD, SUITE 625
HONOLULU, HI 96813

Honolulu County (808) 692-1584

JINGYU (LINNA) JIN

Speech-Language Pathologist

677 ALA MOANA BLVD, SUITE 625
HONOLULU, HI 96813

Honolulu County (808) 692-1587

DR. MARK S RAGSAC D.M.D.

Dentist (General Practice)

677 ALA MOANA BLVD, SUITE 902
HONOLULU, HI 96813

Honolulu County (808) 536-8503

DR. CANDACE TAN PHARM.D.

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

677 ALA MOANA BLVD, #1016
HONOLULU, HI 96813

Honolulu County (626) 833-2258

I OLA LAHUI INC

Psychologist (Clinical)

677 ALA MOANA BLVD, SUITE 904
HONOLULU, HI 96813

Honolulu County (808) 525-6255

DR. LILI K HORTON DMD, MS

Dentist (Orthodontics and Dentofacial Orthopedics)

677 ALA MOANA BLVD, SUITE 801
HONOLULU, HI 96813

Honolulu County (808) 347-3023

LISA DUONG TANIGUCHI AU. D

Audiologist

677 ALA MOANA BLVD, SUITE 625
HONOLULU, HI 96813

Honolulu County (808) 692-1583

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 Courtenay Matsu's NPI number?

The NPI number for Courtenay Matsu is 1770539520. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is Courtenay Matsu located?

Courtenay Matsu practices at 677 Ala Moana Blvd Suite 1025, Honolulu, HI 96813. The listed phone number is (808) 535-5975.

What is Courtenay Matsu's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for Courtenay Matsu was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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.