NPPES file of Aug 9, 2026

Mary E. Holliday, NP

Nurse Practitioner · Charleston, SC

Mary E. Holliday, NP is a nurse practitioner with a practice address in Charleston, South Carolina, and NPI 1780775239, issued on Sep 28, 2006. Check the license (South Carolina 19679, 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
1780775239
Name
Mary E. Holliday
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
19679 SC
Self-reported in NPPES; status is on the state search
Practice location
325 Folly RD Ste 102A, Charleston, SC 29412
Phone
(843) 724-2011
Enumerated
Sep 28, 2006
Record last updated
Apr 28, 2026
Fax
(843) 606-7911
Medicaid ID
NP4562 SC
Medicare enrollment
Enrolled (PECOS I20170714000198); 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 325 Folly RD Ste 102A

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

  1. Milton Costa, M.D.General Practice Physician1629142674
  2. Rosalyn Haldeman, PAPhysician Assistant1194350470
  3. Aaron Hyson, M.D.Family Medicine Physician1831450683
  4. Shannon Long, D.O.Family Medicine Physician1306259916
  5. Elizabeth Murray, MDFamily Medicine Physician1508151010
  6. Marie Neilsen, MDFamily Medicine Physician1194986299

Verify Mary E. Holliday 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 19679
    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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26% more Medicare Part D claims than the average nurse practitioner in 2024

1,395 Medicare Part D claims for 166 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.

  1. Mary Holliday1,395
  2. Specialty average1,109

Most prescribed

  1. Levothyroxine Sodium117 claims
  2. Metformin Hcl Er99 claims
  3. Lantus Solostar96 claims
  4. Metformin Hcl59 claims
  5. Novolog Flexpen57 claims
  6. Ozempic57 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: $679.88

28 payments; by number, the most common kind was food and beverage; the largest payer was Insulet Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Holliday$679.88
  2. Specialty average$791.64

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. Roper Saint Francis Physicians NetworkCharleston, SC

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

Mary E. Holliday among 1,263 nurse practitioner records in South Carolina

Mary E. Holliday, NP is one of 1,263 nurse practitioner records with a practice address in South Carolina. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 83% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2006 · median 2018 among the 791 with a school on file
  • Record last updated2026 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

220 nurse practitioner records list a practice address in Charleston

They are 220 of the 10,840 NPPES records with a practice address in Charleston, and 1,263 nurse practitioner records in South Carolina.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Pamela Arnold, MSN, APRN, BC-ADMCharleston, SC 294121407072218
  2. Rachel Bueno, APRN, WHNP-BCCharleston, SC 294121952188849
  3. Darla Kreis, MSN-RN, FNP-BCCharleston, SC 294121275579963
  4. Adriannah Liggitt, NPCharleston, SC 294121588517767
  5. Dzenita Nuhanovic, APRNCharleston, SC 294121649041617
  6. Leia Oberg, FNPCharleston, SC 294121245348101
  7. Gayle Scott, NPCharleston, SC 294121518977347
  8. Kristen Timmons, MSN, APRN, FNP-CCharleston, SC 294121275117921

Common questions

What is Mary E. Holliday, NP's NPI number?

Mary E. Holliday, NP's National Provider Identifier (NPI) is 1780775239, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary E. Holliday, NP located?

The NPPES record lists a practice address at 325 Folly RD Ste 102A, Charleston, SC, 29412. Phone: (843) 724-2011. Providers update this record themselves, so call before visiting.

How can I verify Mary E. Holliday, NP's license?

NPPES lists South Carolina license number 19679, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Mary E. Holliday, NP prescribe under Medicare Part D?

In 2024, Mary E. Holliday, NP had 1,395 Medicare Part D claims for 166 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.