CASTLE MEDICAL CENTER
NPI 1316937691
General Acute Care Hospital in Kailua, HI
About Castle Medical Center NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CASTLE MEDICAL CENTER (NPI 1316937691) is a healthcare organization registered as a general acute care hospital in Kailua, Hawaii and active in the NPI registry since October 2005. The organization lists Nicolas Johnson, Finance Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Castle Medical Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
110Medicare enrollment records show 110 clinicians reassign Medicare billing to Castle Medical Center, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 69 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 19
Nearest to this location (20)
See all 110Source: 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 Castle Medical Center's NPI number?
The NPI number for Castle Medical Center is 1316937691. It was assigned to this organization in the NPPES registry on October 26, 2005.
Where is Castle Medical Center located?
Castle Medical Center is located at 640 Ulukahiki St, Kailua, HI 96734. The listed phone number is (808) 263-5142.
What is Castle Medical Center's specialty?
The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.
Is Castle Medical Center enrolled in Medicare?
Yes. Castle Medical Center is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Castle Medical Center?
According to the CMS Revalidation Reassignment List (October 2026 release), 110 clinicians in 19 Medicare specialties reassign their Medicare billing to Castle Medical Center. 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. The largest specialties are Nurse Practitioner (19), Internal Medicine (15) and Family Practice (12). Of these, 4 practice at this address and 69 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Castle Medical Center accept?
Health plans from HMSA list Castle Medical Center 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 Castle Medical Center was last updated on July 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Castle Medical Center · NPI 1316937691
General Acute Care Hospital organization in Kailua, Hawaii. Organization record, active in the CMS NPPES registry since October 26, 2005.
## Identity
- **NPI:** 1316937691 (Entity type: Organization)
- **Enumerated:** October 26, 2005
- **Primary specialty:** General Acute Care Hospital · taxonomy 282N00000X
- **Organization subpart:** No
- **Authorized official:** Nicolas Johnson, FINANCE OFFICER
## Practice location
- **Address:** 640 ULUKAHIKI ST, Kailua, HI 96734-4454
- **Phone:** (808) 263-5142
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 110 clinicians in 19 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (19), Internal Medicine (15), Family Practice (12); 4 practice at this address and 69 within 10 miles; [full list](https://npiprofile.com/npi/1316937691/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 18, 2025
- **Other identifiers:** Medicaid 082268-01 (HI)
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Source: [NPI Profile](https://npiprofile.com/npi/1316937691) · Data from the CMS NPPES public registry.