LONGSHORE PSYCHIATRIC MENTAL HEALTH SERVICES LLC
NPI 1689544512
Nurse Practitioner - Psychiatric/Mental Health in Hilton Head Island, SC
About Longshore Psychiatric Mental Health Services Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LONGSHORE PSYCHIATRIC MENTAL HEALTH SERVICES LLC (NPI 1689544512), doing business as Catherine Mccormack Pmnp-bc, is a healthcare organization registered as a psychiatric/mental health in Hilton Head Island, South Carolina and active in the NPI registry since November 2025. The organization lists Catherine Mccormack, Pmhnp-bc, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 2
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)
Longshore Psychiatric Mental Health Services 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 Longshore Psychiatric Mental Health Services 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 Longshore Psychiatric Mental Health Services LLC's NPI number?
The NPI number for Longshore Psychiatric Mental Health Services LLC is 1689544512. It was assigned to this organization in the NPPES registry on November 6, 2025. The provider is doing business as Catherine McCormack PMNP-BC.
Where is Longshore Psychiatric Mental Health Services LLC located?
Longshore Psychiatric Mental Health Services LLC is located at 23 Main St Ste 103, Hilton Head Island, SC 29926. The listed phone number is (813) 997-2099.
What is Longshore Psychiatric Mental Health Services LLC's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Longshore Psychiatric Mental Health Services LLC enrolled in Medicare?
Yes. Longshore Psychiatric Mental Health Services LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Longshore Psychiatric Mental Health Services LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Longshore Psychiatric Mental Health Services 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 Longshore Psychiatric Mental Health Services LLC was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Longshore Psychiatric Mental Health Services Llc · NPI 1689544512
Psychiatric/Mental Health organization in Hilton Head Island, South Carolina. Organization record, active in the CMS NPPES registry since November 6, 2025.
## Identity
- **NPI:** 1689544512 (Entity type: Organization)
- **Enumerated:** November 6, 2025
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **Also known as:** Catherine McCormack PMNP-BC (Doing Business As); LongShore Psychiatric Mental Health Services LLC (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Catherine Mccormack, PMHNP-BC
## Practice location
- **Address:** 23 MAIN ST STE 103, Hilton Head Island, SC 29926-6607
- **Phone:** (813) 997-2099
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Nurse Practitioner) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1689544512) · Data from the CMS NPPES public registry.