AUDREY MASAKO HAGIWARA MD
NPI 1609496983
Internal Medicine - Rheumatology in Kailua, HI
About Audrey Masako Hagiwara Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AUDREY MASAKO HAGIWARA MD (NPI 1609496983) is an individual rheumatology provider in Kailua, Hawaii, licensed in Hawaii (MD-25579) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Adventist Health Castle, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (2020).
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
Audrey Masako Hagiwara Md 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
2Medicare enrollment records show Audrey Hagiwara reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kailua, HI 96734
- Reassigned Medicare billing, Hawaii enrollment
- 110 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventist Health Castle
Acute Care Hospitals · Kailua, HIKuakini Medical Center
Acute Care Hospitals · Honolulu, HIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 96734 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.
KAILUA, HI 96734
KAILUA, HI 96734
KAILUA, HI 96734
KAILUA, HI 96734
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 Audrey Hagiwara's NPI number?
The NPI number for Audrey Hagiwara is 1609496983. It was assigned to this individual provider in the NPPES registry on April 16, 2020.
Where is Audrey Hagiwara located?
Audrey Hagiwara practices at 642 Ulukahiki St, Kailua, HI 96734. The listed phone number is (808) 263-5095.
What is Audrey Hagiwara's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Audrey Hagiwara enrolled in Medicare?
Yes. Audrey Hagiwara 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 Audrey Hagiwara's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Audrey Hagiwara reassigns Medicare benefits to 2 organizations: Castle Medical Center (Kailua, HI) and Healthcare Partners Affiliates Medical Group (Los Angeles, CA). 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 Audrey Hagiwara's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Audrey Hagiwara accept?
Health plans from HMSA list Audrey Hagiwara 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 Audrey Hagiwara affiliated with any hospitals?
According to CMS data, Audrey Hagiwara is affiliated with Adventist Health Castle and Kuakini Medical Center.
When was this NPI record last updated?
The NPPES record for Audrey Hagiwara was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Audrey Masako Hagiwara, MD · NPI 1609496983
Rheumatology physician in Kailua, Hawaii. Individual provider, active in the CMS NPPES registry since April 16, 2020.
## Identity
- **NPI:** 1609496983 (Entity type: Individual)
- **Enumerated:** April 16, 2020
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** MD-25579 (Hawaii)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 642 ULUKAHIKI ST, Kailua, HI 96734-4400
- **Phone:** (808) 263-5095
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Castle Medical Center (NPI 1316937691, Kailua, HI); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Hawaii John A. Burns School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** March 5, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1609496983) · Data from the CMS NPPES public registry.