1. Home
  2. Directory
  3. Hawaii
  4. Honolulu
  5. Internal Medicine
  6. NPI Profile

GRANT L Y CHEN MD
NPI 1407145444
Internal Medicine in Honolulu, HI

Active since March 30, 2011
1301 PUNCHBOWL ST, HONOLULU, HI 96813(808) 255-6229(808) 537-1952 Get Directions Write a Review

NPPES record last updated: September 8, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Grant L Y Chen Md NPPES

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

GRANT L Y CHEN MD (NPI 1407145444) is a healthcare organization registered as an internal medicine in Honolulu, Hawaii and active in the NPI registry since March 2011. The organization lists Grant L Y Chen, Owner/member, as its authorized official.

NPPES Registry Identity

NPI1407145444
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGRANT L Y CHEN MD LLC
Location Address1301 PUNCHBOWL STHonolulu, HI 96813-2402
Mailing Address848 S Beretania St Ste 408Honolulu, HI 96813-2551 · (808) 859-3628 · Fax (808) 537-1952
Phone(808) 255-6229
Fax(808) 537-1952
Organization SubpartNo
Authorized OfficialGrant L Y ChenOwner/member · (808) 255-6229
Enumeration DateMarch 30, 2011
Last NPPES UpdateSeptember 8, 2016
✔ NPI 1407145444 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in HI · 14305
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1301 PUNCHBOWL ST, Honolulu, HI 96813
Open in Google Maps ↗

Other Names 1

Doing Business AsGrant L Y Chen Md

Other Identifiers 1

Other1962536946HI · Type 1 Npi

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grant L Y Chen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Grant L Y Chen MD, which bills Medicare for the services this clinician delivers.

Clinician (1)

Grant Chen, M.D.
Internal Medicine
NPI 1962536946
1301 PUNCHBOWL ST
Honolulu, HI 96813
(808) 691-1000
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Grant L Y Chen MD LLC's NPI number?

The NPI number for Grant L Y Chen MD LLC is 1407145444. It was assigned to this organization in the NPPES registry on March 30, 2011. The provider is doing business as Grant L Y Chen MD.

Where is Grant L Y Chen MD LLC located?

Grant L Y Chen MD LLC is located at 1301 Punchbowl St, Honolulu, HI 96813. The listed phone number is (808) 255-6229.

What is Grant L Y Chen MD LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Grant L Y Chen MD LLC enrolled in Medicare?

Yes. Grant L Y Chen MD LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Grant L Y Chen MD LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Grant L Y Chen MD LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Grant L Y Chen MD LLC was last updated on September 8, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.