NPPES file of Aug 9, 2026

Mallory Darnell, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner · Mount Pleasant, SC

Mallory Darnell, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Mount Pleasant, South Carolina, and NPI 1326522194, issued on Sep 18, 2018. Check the license (South Carolina 25795, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326522194
Name
Mallory Darnell
Credential
PMHNP-BC
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
25795 SC
243909 SC
Self-reported in NPPES; status is on the state search
Practice location
871 Lowcountry Blvd, Mount Pleasant, SC 29464
Phone
(843) 501-1099
Enumerated
Sep 18, 2018
Record last updated
Feb 25, 2022
Medicaid ID
1760596480 SC
Medicare enrollment
Enrolled (PECOS I20220527000017); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 871 Lowcountry Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amanda Acree, LISW-CPClinical Social Worker1871959619
  2. Leah Boepple, PHDClinical Psychologist1134770001
  3. Kristine Born, MAProfessional Counselor1437465895
  4. Marialyn Chowansky, LPCProfessional Counselor1467109009
  5. Flavia FernicolaProfessional Counselor1467840785
  6. Stephanie Gore, LPCProfessional Counselor1073175436

Verify Mallory Darnell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 25795
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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81% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

175 Medicare Part D claims for 12 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Mallory Darnell175
  2. Specialty average906

Most prescribed

  1. Mirtazapine20 claims
  2. Lithium Carbonate18 claims
  3. Paroxetine Hcl17 claims
  4. Aripiprazole14 claims
  5. Quetiapine Fumarate12 claims
  6. Hydroxyzine Hcl11 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: $89.08

1 payment: food and beverage; the largest payer was Otsuka America Pharmaceutical, 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.

  1. Mallory Darnell$89.08
  2. Specialty average$1,027.77

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

  1. Turnwell Mental Health OF South Carolina PCMount Pleasant, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mallory Darnell among 540 psychiatric/mental health nurse practitioner records in South Carolina

Mallory Darnell, PMHNP-BC 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 2018, is newer than 32% of them.

  • NPI issued2018 · 32% of these records are older, 63% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · median 2021 among the 322 with a school on file
  • Record last updated2022 · 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).

11 psychiatric/mental health nurse practitioner records list a practice address in Mount Pleasant

They are 11 of the 1,227 NPPES records with a practice address in Mount Pleasant, and 540 psychiatric/mental health nurse practitioner records in South Carolina.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Aaron Aven, APRNMt Pleasant, SC 294641295624542
  2. Carole Bennett, PH.D,RN,CSMt Pleasant, SC 294641437163185
  3. Amanda Blue, APRNMount Pleasant, SC 294641770009565
  4. Sara CousinsMount Pleasant, SC 294641184435240
  5. Lauren JarboeMount Pleasant, SC 294641447919808
  6. Abby Kent, NPMount Pleasant, SC 294641043999543
  7. Casey Lee, PMHNPMount Pleasant, SC 294641013671171
  8. Bridget McLernon Sykes, FNP, PMHNPMount Pleasant, SC 294641518118108

Common questions

What is Mallory Darnell, PMHNP-BC's NPI number?

Mallory Darnell, PMHNP-BC's National Provider Identifier (NPI) is 1326522194, issued on Sep 18, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Mallory Darnell, PMHNP-BC located?

The NPPES record lists a practice address at 871 Lowcountry Blvd, Mount Pleasant, SC, 29464. Phone: (843) 501-1099. Providers update this record themselves, so call before visiting.

How can I verify Mallory Darnell, PMHNP-BC's license?

NPPES lists South Carolina license number 25795, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Mallory Darnell, PMHNP-BC prescribe under Medicare Part D?

In 2024, Mallory Darnell, PMHNP-BC had 175 Medicare Part D claims for 12 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.