Catherine Longshore McCormack, APRN, RN
Psychiatric/Mental Health Nurse Practitioner · Hilton Head Island, SC
Catherine Longshore McCormack, APRN, RN is a psychiatric/mental health nurse practitioner with a practice address in Hilton Head Island, South Carolina, and NPI 1871744607, issued on Oct 10, 2008. Check the license (South Carolina 27925, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Longshore McCormack
- Credential
- APRN, RN
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 27925 SC
Self-reported in NPPES; status is on the state search - Practice location
- 23 Main St Ste 103, Hilton Head Island, SC 29926
- Phone
- (803) 290-1898
- Enumerated
- Oct 10, 2008
- Record last updated
- May 7, 2026
- Fax
- (859) 575-2775
- Medicare enrollment
- Enrolled (PECOS I20231219003082); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2023
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 540 in South Carolina → Look up another NPI →
Verify Catherine Longshore McCormack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 27925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
120 Medicare Part D claims for 21 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Quetiapine Fumarate16 claims
- Lamotrigine15 claims
- Desvenlafaxine Succinate Er13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $68.77
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hilton Head Psychiatric Clinics PCHilton Head Island, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Longshore McCormack among 540 psychiatric/mental health nurse practitioner records in South Carolina
Catherine Longshore McCormack, APRN, RN is one of 540 psychiatric/mental health nurse practitioner records with a practice address in South Carolina. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 9% of them.
- NPI issued2008 · 9% of these records are older, 89% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2023 · median 2021 among the 322 with a school on file
- Record last updated2026 · 19% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in South Carolina
There are 540 psychiatric/mental health nurse practitioner records in South Carolina.
All 540 in South Carolina → Every provider in Hilton Head Island → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Lerryn Crocker, ADN BSN MSN FNPHilton Head Island, SC 299261891785523
- Jana Wheeler, DNP, PPCNP-BCHilton Head Island, SC 299261285800235
- Kiara Regan, RN, PMHNP-BCHilton Head, SC 299281750706818
- Leah Lafountain, NPPort Royal, SC 299351619442951
- Patricia Hill, APRNBluffton, SC 299101841712874
- Jill Laughlin, C-PMHNPBluffton, SC 299101891987400
- Adela Montalvo, NURSE PRACTITIONERBluffton, SC 299101962236968
- Savanna Smallwood-CorcoranBluffton, SC 299101104755297
Common questions
What is Catherine Longshore McCormack, APRN, RN's NPI number?
Catherine Longshore McCormack, APRN, RN's National Provider Identifier (NPI) is 1871744607, issued on Oct 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Longshore McCormack, APRN, RN located?
The NPPES record lists a practice address at 23 Main St Ste 103, Hilton Head Island, SC, 29926. Phone: (803) 290-1898. Providers update this record themselves, so call before visiting.
How can I verify Catherine Longshore McCormack, APRN, RN's license?
NPPES lists South Carolina license number 27925, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Longshore McCormack, APRN, RN prescribe under Medicare Part D?
In 2024, Catherine Longshore McCormack, APRN, RN had 120 Medicare Part D claims for 21 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.