MRS. CATHERINE LONGSHORE MCCORMACK APRN, RN
NPI 1871744607
Nurse Practitioner - Psychiatric/Mental Health in Hilton Head Island, SC
About Mrs. Catherine Longshore Mccormack Aprn, Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. CATHERINE LONGSHORE MCCORMACK APRN, RN (NPI 1871744607) is an individual psychiatric/mental health provider in Hilton Head Island, South Carolina, licensed in South Carolina (27925) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS and is a graduate of Ohio State University College Of Medicine (2023).
NPPES Registry Identity
Specialties & Licenses 2
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
Mrs. Catherine Longshore Mccormack Aprn, Rn 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 Catherine Mccormack reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hilton Head Island, SC 29926
- Reassigned Medicare billing, South Carolina enrollment
Hilton Head Island, SC 29926
- Reassigned Medicare billing, South Carolina enrollment
- 2 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29926 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HILTON HEAD ISLAND, SC 29926
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 Catherine Mccormack's NPI number?
The NPI number for Catherine Mccormack is 1871744607. It was assigned to this individual provider in the NPPES registry on October 10, 2008.
Where is Catherine Mccormack located?
Catherine Mccormack practices at 23 Main St Ste 103, Hilton Head Island, SC 29926. The listed phone number is (803) 290-1898.
What is Catherine Mccormack's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Catherine Mccormack enrolled in Medicare?
Yes. Catherine Mccormack 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 Catherine Mccormack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Mccormack reassigns Medicare benefits to 2 organizations: Longshore Psychiatric Mental Health Services LLC (Hilton Head Island, SC) and Hilton Head Psychiatric Clinics, PC (Hilton Head Island, SC). 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 Catherine Mccormack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Catherine Mccormack accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Oscar Health Plan, Inc. and UnitedHealthcare list Catherine Mccormack 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 Catherine Mccormack 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.
# Mrs. Catherine Longshore Mccormack, APRN, RN · NPI 1871744607
Psychiatric/Mental Health physician in Hilton Head Island, South Carolina. Individual provider, active in the CMS NPPES registry since October 10, 2008.
## Identity
- **NPI:** 1871744607 (Entity type: Individual)
- **Enumerated:** October 10, 2008
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 27925 (South Carolina)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 23 MAIN ST STE 103, Hilton Head Island, SC 29926-6607
- **Phone:** (803) 290-1898 · **Fax:** (859) 575-2775
## 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): Longshore Psychiatric Mental Health Services LLC (NPI 1689544512, Hilton Head Island, SC); Hilton Head Psychiatric Clinics, PC (NPI 1245408103, Hilton Head Island, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 2023
## Record status
- **NPPES last updated:** May 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871744607) · Data from the CMS NPPES public registry.