Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Alexander Marshall, DMD, MS

Individual provider Orthodontics and Dentofacial Orthopedics Dentistry · NPI 1023352200

William Alexander Marshall, DMD, MS practises Orthodontics and Dentofacial Orthopedics Dentistry in Spartanburg, South Carolina. Licensed in South Carolina. Registered with an NPI since 2012.

Licensed in
SC
In the registry since
2012
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

319 N Pine St Ste 5
Spartanburg, SC 29302-1605 Not confirmed with CMS for 13 years — call before visiting
Phone: (864) 585-8709
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthodontics and Dentofacial Orthopedics Dentistry (primary) Taxonomy 1223X0400X · Licence 7124 (SC)

Record details

NPI number1023352200
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD , MS
Sole proprietorNo
NPI enumeratedNovember 12, 2012
Last updated in NPPESNovember 12, 2012

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $107 4 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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