IAN NAGATA DO
NPI 1194173963
Psychiatry & Neurology - Psychiatry in Honolulu, HI
About Ian Nagata Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IAN NAGATA DO (NPI 1194173963) is an individual psychiatry provider in Honolulu, Hawaii, licensed in Hawaii (DOS1824) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of Touro Un Col Of Osteopathic Medicine, Henderson (2016).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ian Nagata Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Ian Nagata reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 859 clinicians in this Medicare group
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- Medicare enrollment name: The Queens Medical Center
- 809 clinicians in this Medicare group
Kamuela, HI 96743
- Reassigned Medicare billing, Hawaii enrollment
- 277 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The Queens Medical Center
Acute Care Hospitals · Honolulu, HIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 96813 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
HONOLULU, HI 96813
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 Nagata's NPI number?
The NPI number for Ian Nagata is 1194173963. It was assigned to this individual provider in the NPPES registry on June 2, 2016.
Where is Ian Nagata located?
Ian Nagata practices at 1301 Punchbowl St, Honolulu, HI 96813. The listed phone number is (808) 691-1000.
What is Ian Nagata's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Ian Nagata enrolled in Medicare?
Yes. Ian Nagata is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ian Nagata's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ian Nagata reassigns Medicare benefits to 3 organizations: Queens University Medical Group (Honolulu, HI), The Queen's Medical Center (Honolulu, HI) and Queens North Hawaii Community Hospital (Kamuela, HI). Each 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 Nagata's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ian Nagata accept?
Health plans from HMSA list Ian Nagata 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.
Is Ian Nagata affiliated with any hospitals?
According to CMS data, Ian Nagata is affiliated with The Queens Medical Center.
When was this NPI record last updated?
The NPPES record for Ian Nagata was last updated on May 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Ian Nagata, DO · NPI 1194173963
Psychiatry physician in Honolulu, Hawaii. Individual provider, active in the CMS NPPES registry since June 2, 2016.
## Identity
- **NPI:** 1194173963 (Entity type: Individual)
- **Enumerated:** June 2, 2016
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** DOS1824 (Hawaii)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1301 PUNCHBOWL ST, Honolulu, HI 96813-2402
- **Phone:** (808) 691-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Queens University Medical Group (NPI 1891441382, Honolulu, HI); The Queen's Medical Center (NPI 1487693586, Honolulu, HI); Queens North Hawaii Community Hospital (NPI 1124009584, Kamuela, HI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Touro Un Col Of Osteopathic Medicine, Henderson, class of 2016
## Record status
- **NPPES last updated:** May 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1194173963) · Data from the CMS NPPES public registry.