DR. IAN NUI CHUN MD
NPI 1013119700
Psychiatry & Neurology - Child & Adolescent Psychiatry in Hilo, HI

Q: What is Ian Chun's NPI number?

The NPI number for Ian Chun is 1013119700. It was assigned to this individual provider in the NPPES registry on June 4, 2007.

Q: What is Ian Chun's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Q: When was this NPI record last updated?

The NPPES record for Ian Chun was last updated on February 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.

Active since June 04, 2007PECOS Enrolled

75 AUPUNI ST RM 206, HILO, HI 96720(808) 933-0599(808) 933-0411 Get Directions Write a Review

NPPES record last updated: February 27, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 27, 2025, Mar 17, 2018, Feb 15, 2018 (3 updates tracked since 2018).

On this page

About Dr. Ian Nui Chun Md NPPES

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

DR. IAN NUI CHUN MD (NPI 1013119700) is an individual child & adolescent psychiatry provider in Hilo, Hawaii, licensed in Hawaii (5053) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in Kamuela.

NPPES Registry Identity

NPI1013119700

Entity TypeIndividualMale

Primary Taxonomy2084P0804X

Provider Legal NameDR. IAN NUI CHUNCredential: MD

Location Address75 AUPUNI ST RM 206Hilo, HI 96720-4245

Mailing Address67-1294 Laikealoha StKamuela, HI 96743-8317 · (808) 220-8914 · Fax (808) 887-8118

Phone(808) 933-0599

Fax(808) 933-0411

Sole ProprietorYes

Enumeration DateJune 4, 2007

Last NPPES UpdateFebruary 27, 20253 updates tracked since enumeration

NPPES CertifiedFebruary 27, 2025

✔ NPI 1013119700 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0804X

License✔ Licensed in HI · 5053

Definition

Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Also ListedPediatricsTaxonomy 208000000X · License 5053 (HI)

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 5053 (HI)

75 AUPUNI ST RM 206, Hilo, HI 96720

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Secondary Practice Location 1

Location 167-1294 Laikealoha StKamuela, HI 96743-8317 · Phone (808) 220-8914 · Fax (808) 887-8118

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ian Nui Chun Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ian Chun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Hawaii Community Hospital, Inc.

44 mi

End-Stage Renal Disease (ESRD) Treatment

67-1125 MAMALAHOA HWY
Kamuela, HI 96743

Reassigned Medicare billing, Hawaii enrollment
Medicare enrollment name: Queens North Hawaii Community Hospital
277 clinicians in this Medicare group

NPI 1033190319 (808) 881-4400

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 Ian Chun's NPI number?

The NPI number for Ian Chun is 1013119700. It was assigned to this individual provider in the NPPES registry on June 4, 2007.

Where is Ian Chun located?

Ian Chun practices at 75 Aupuni St Rm 206, Hilo, HI 96720. The listed phone number is (808) 933-0599.

What is Ian Chun's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Ian Chun enrolled in Medicare?

Yes. Ian Chun is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ian Chun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ian Chun reassigns Medicare benefits to North Hawaii Community Hospital, Inc. (Kamuela, HI). The 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 Ian Chun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ian Chun accept?

Health plans from HMSA list Ian Chun 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 Ian Chun was last updated on February 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.