HARBOR PSYCHIATRY & MENTAL HEALTH, PROFESSIONAL CORPORATION
NPI 1780050054
Psychiatry & Neurology - Psychiatry in Newport Beach, CA
About Harbor Psychiatry & Mental Health, Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HARBOR PSYCHIATRY & MENTAL HEALTH, PROFESSIONAL CORPORATION (NPI 1780050054) is a healthcare organization registered as a psychiatry in Newport Beach, California and active in the NPI registry since August 2015. The organization lists Kiefer Greenspan, President/medical Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Harbor Psychiatry & Mental Health, Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
30Medicare enrollment records show 30 clinicians reassign Medicare billing to Harbor Psychiatry & Mental Health, Professional Corporation, which bills Medicare for the services they deliver. Of these, 13 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 5
Nearest to this location (20)
See all 30Source: 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 Harbor Psychiatry & Mental Health, Professional Corporation's NPI number?
The NPI number for Harbor Psychiatry & Mental Health, Professional Corporation is 1780050054. It was assigned to this organization in the NPPES registry on August 20, 2015.
Where is Harbor Psychiatry & Mental Health, Professional Corporation located?
Harbor Psychiatry & Mental Health, Professional Corporation is located at 4631 Teller Ave Ste 100, Newport Beach, CA 92660. The listed phone number is (949) 887-7187.
What is Harbor Psychiatry & Mental Health, Professional Corporation's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Harbor Psychiatry & Mental Health, Professional Corporation enrolled in Medicare?
Yes. Harbor Psychiatry & Mental Health, Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Harbor Psychiatry & Mental Health, Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 30 clinicians in 5 Medicare specialties reassign their Medicare billing to Harbor Psychiatry & Mental Health, Professional Corporation. 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 Clinical Psychologist (14), Psychiatry (8) and Nurse Practitioner (6). Of these, 13 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Harbor Psychiatry & Mental Health, Professional Corporation was last updated on September 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days 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.
# Harbor Psychiatry & Mental Health, Professional Corporation · NPI 1780050054
Psychiatry organization in Newport Beach, California. Organization record, active in the CMS NPPES registry since August 20, 2015.
## Identity
- **NPI:** 1780050054 (Entity type: Organization)
- **Enumerated:** August 20, 2015
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **Organization subpart:** No
- **Authorized official:** Kiefer Greenspan, PRESIDENT/MEDICAL DIRECTOR
## Practice location
- **Address:** 4631 TELLER AVE STE 100, Newport Beach, CA 92660-8105
- **Phone:** (949) 887-7187 · **Fax:** (949) 476-3080
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 30 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Psychologist (14), Psychiatry (8), Nurse Practitioner (6); 13 practice within 10 miles; [full list](https://npiprofile.com/npi/1780050054/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 18, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1780050054) · Data from the CMS NPPES public registry.