ETHAN CT PIEN MD LLC
NPI 1841506565
Clinic/Center - Mental Health (Including Community Mental Health Center) in Honolulu, HI
About Ethan Ct Pien Md Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN CT PIEN MD LLC (NPI 1841506565) is a healthcare organization registered as a mental health (including community mental health center) in Honolulu, Hawaii and active in the NPI registry since August 2010. The organization lists Ethan Pien, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ethan Ct Pien Md Llc 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 Ethan Ct Pien MD LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Ethan Ct Pien MD LLC's NPI number?
The NPI number for Ethan Ct Pien MD LLC is 1841506565. It was assigned to this organization in the NPPES registry on August 19, 2010.
Where is Ethan Ct Pien MD LLC located?
Ethan Ct Pien MD LLC is located at 1010 S King St 111, Honolulu, HI 96814. The listed phone number is (808) 597-8765.
What is Ethan Ct Pien MD LLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.
Is Ethan Ct Pien MD LLC enrolled in Medicare?
Yes. Ethan Ct Pien MD LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Ethan Ct Pien MD LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to Ethan Ct Pien 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 Ethan Ct Pien MD LLC was last updated on August 19, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Ethan Ct Pien Md Llc · NPI 1841506565
Mental Health (Including Community Mental Health Center) organization in Honolulu, Hawaii. Organization record, active in the CMS NPPES registry since August 19, 2010.
## Identity
- **NPI:** 1841506565 (Entity type: Organization)
- **Enumerated:** August 19, 2010
- **Primary specialty:** Clinic/Center - Mental Health (Including Community Mental Health Center) · taxonomy 261QM0801X
- **Organization subpart:** No
- **Authorized official:** Ethan Pien, OWNER
## Practice location
- **Address:** 1010 S KING ST, 111, Honolulu, HI 96814-1701
- **Phone:** (808) 597-8765 · **Fax:** (808) 597-6578
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Psychiatry) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 19, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1841506565) · Data from the CMS NPPES public registry.