NPPES file of Aug 9, 2026

William Stirling Harper, MD

Emergency Medicine Physician · North Charleston, SC

William Stirling Harper, MD is an emergency medicine physician with a practice address in North Charleston, South Carolina, and NPI 1245677244, issued on May 30, 2013. Check the license (South Carolina 39145, as entered in NPPES) on the South Carolina Board of Medical Examiners; 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
1245677244
Name
William Stirling Harper
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
39145 SC
2015-02117 NC
Self-reported in NPPES; status is on the state search
Practice location
9330 Medical Plaza Dr, North Charleston, SC 29406
Phone
(843) 797-7000
Enumerated
May 30, 2013
Record last updated
Jul 26, 2026
Medicare enrollment
Enrolled (PECOS I20160721001922); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 2013
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 9330 Medical Plaza Dr

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

  1. Austin Amos, MDStudent in an Organized Health Care Education/Training Program1306595962
  2. Thashali Anthony, MDInternal Medicine Physician1467021709
  3. Areeba AshfaqStudent in an Organized Health Care Education/Training Program1902474877
  4. Joshua AshworthStudent in an Organized Health Care Education/Training Program1235078155
  5. Adam Bardoczi, MDStudent in an Organized Health Care Education/Training Program1306658869
  6. Lauren Brady, MDEmergency Medicine Physician1871242305

Verify William Stirling Harper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 39145
    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
Open 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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51% fewer Medicare Part D claims than the average emergency medicine physician in 2024

110 Medicare Part D claims for 72 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. William Harper110
  2. Specialty average226

Most prescribed

  1. Doxycycline Monohydrate11 claims
  2. Metronidazole11 claims
  3. Prednisone11 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: $28.24

1 payment: food and beverage; the largest payer was Organogenesis Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Harper$28.24
  2. Specialty average$953.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Acs Primary Care Physicians - Southeast PCCharleston, SC
  2. Charleston Wound Care Center LLCMount Pleasant, SC

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

William Stirling Harper among 1,244 emergency medicine physician records in South Carolina

William Stirling Harper, MD is one of 1,244 emergency medicine physician records with a practice address in South Carolina. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 56% of them.

  • NPI issued2013 · 56% of these records are older, 41% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2013 · median 2012 among the 752 with a school on file
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in South Carolina

There are 1,244 emergency medicine physician records in South Carolina.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Eric Brittain, MDNorth Charleston, SC 294061497740476
  2. David Dalu, MDNorth Charleston, SC 294061093745309
  3. David French, MDCharleston, SC 294061669406393
  4. Geoffrey GrayCharleston, SC 294061184891012
  5. Scott Hayes, MDCharleston, SC 294061932290889
  6. Cameron Maile, M.D.Charleston, SC 294061568574184
  7. Ferrell McClain, MDCharleston, SC 294061912953118
  8. Christopher McCrae, MDCharleston, SC 294061114017118

Common questions

What is William Stirling Harper, MD's NPI number?

William Stirling Harper, MD's National Provider Identifier (NPI) is 1245677244, issued on May 30, 2013. An NPI identifies a provider in billing; it is not a license.

Where is William Stirling Harper, MD located?

The NPPES record lists a practice address at 9330 Medical Plaza Dr, North Charleston, SC, 29406. Phone: (843) 797-7000. Providers update this record themselves, so call before visiting.

How can I verify William Stirling Harper, MD's license?

NPPES lists South Carolina license number 39145, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Stirling Harper, MD prescribe under Medicare Part D?

In 2024, William Stirling Harper, MD had 110 Medicare Part D claims for 72 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.