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

CHELSEA TAKAMATSU MD
NPI 1861013096
Internal Medicine - Nephrology in Honolulu, HI

Active since April 28, 2020
97.64/100
CMS Quality Rating
1520 LILIHA ST STE 601, HONOLULU, HI 96817(808) 523-0445 Get Directions Write a Review

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Sep 2, 2026, Jul 15, 2024, Jun 27, 2024 (3 updates tracked since 2024).

About Chelsea Takamatsu Md NPPES

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

CHELSEA TAKAMATSU MD (NPI 1861013096) is an individual nephrology provider in Honolulu, Hawaii, licensed in Hawaii (MD-27031-0) and active in the NPI registry since April 2020.

NPPES Registry Identity

NPI1861013096
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameCHELSEA TAKAMATSUCredential: MD
Location Address1520 LILIHA ST STE 601Honolulu, HI 96817-3564
Mailing Address1520 Liliha St Ste 601Honolulu, HI 96817-3564 · (808) 523-0445
Phone(808) 523-0445
Sole ProprietorNo
Enumeration DateApril 28, 2020
Last NPPES UpdateSeptember 2, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 2, 2026
✔ NPI 1861013096 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in HI · MD-27031-0✔ Licensed in CA · 195259
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License R78078 (AZ)
1520 LILIHA ST STE 601, Honolulu, HI 96817
Open in Google Maps ↗

Other Identifiers 3

Other61172AZ · State License
Other195259CA · State License
OtherMD-27031-0HI · Medical License

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
49 services46 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.64/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality84.77
Promoting Interoperability98.67
Improvement Activities40

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.

MR. HAROLD MARION GALARA PALMA APRN
Nurse Practitioner (Adult Health)
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445
AMRUTA SABU NAIR
Internal Medicine (Nephrology)
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445
MR. MARK ANTHONY CARREON MSN, ACNP
Nurse Practitioner
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445
MR. ERIK DRU ANDERSON APRN
Nurse Practitioner (Adult Health)
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445
STEFANIA MARIE LEW NP
Nurse Practitioner
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (888) 288-5977
RALF IAN MAGDAY PASION AGPCNP-BC, AGNP-C
Nurse Practitioner
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445
JOY MARINAS APRN, NP-C
Nurse Practitioner
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445
ANDREA C. FUKUHARA APRN-RX
Nurse Practitioner
1520 LILIHA ST STE 601
HONOLULU, HI 96817
Honolulu County (808) 523-0445

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 Chelsea Takamatsu's NPI number?

The NPI number for Chelsea Takamatsu is 1861013096. It was assigned to this individual provider in the NPPES registry on April 28, 2020.

Where is Chelsea Takamatsu located?

Chelsea Takamatsu practices at 1520 Liliha St Ste 601, Honolulu, HI 96817. The listed phone number is (808) 523-0445.

What is Chelsea Takamatsu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for Chelsea Takamatsu was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.