NPPES file of Aug 9, 2026

William Patrick Marshall, M.D.

Family Medicine Physician · Greenville, SC

William Patrick Marshall, M.D. is a family medicine physician with a practice address in Greenville, South Carolina, and NPI 1669418307, issued on Jun 21, 2006. Check the license (South Carolina 6434, as entered in NPPES) on the South Carolina Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1669418307
Name
William Patrick Marshall
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
6434 SC
Self-reported in NPPES; status is on the state search
Practice location
215 Halton RD, Greenville, SC 29607
Phone
(864) 454-2700
Enumerated
Jun 21, 2006
Record last updated
Aug 21, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
064343 SC
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 2,700 in South Carolina → Look up another NPI →

Also registered at 215 Halton RD

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

  1. Louis Browne, M.D.Family Medicine Physician1891739504
  2. Patricia Crawford, M.D.Internal Medicine Physician1144256066
  3. David Hoenicke, M.D.Family Medicine Physician1578590386
  4. Kasey Marlow, PAPhysician Assistant1497338156
  5. Michael Marshall, D.O.Family Medicine Physician1568809465
  6. Hannah Sluiter, PA-CPhysician Assistant1699644286

Verify William Patrick Marshall 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 6434    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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William Patrick Marshall among 2,700 family medicine physician records in South Carolina

William Patrick Marshall, M.D. is one of 2,700 family medicine physician records with a practice address in South Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 53% newer
  • In a Medicare fileNo · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2013 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

217 family medicine physician records list a practice address in Greenville

They are 217 of the 10,264 NPPES records with a practice address in Greenville, and 2,700 family medicine physician records in South Carolina. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,700 in South Carolina → Every provider in Greenville → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Daniel Brake, M.D.Greenville, SC 296071861432387
  2. Louis Browne, M.D.Greenville, SC 296071891739504
  3. Tonya Edwards, MDGreenville, SC 296071538165865
  4. Harlicia Farley, MDGreenville, SC 296071154381036
  5. Lisa ForgioneGreenville, SC 296071881645562
  6. James Fuson, M.D.Greenville, SC 296071275571226
  7. Michael Harrah, M.D.Greenville, SC 296071487698981
  8. Dana Lewis, D.O.Greenville, SC 296071396717013

Common questions

What is William Patrick Marshall, M.D.'s NPI number?

William Patrick Marshall, M.D.'s National Provider Identifier (NPI) is 1669418307, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Patrick Marshall, M.D. located?

The NPPES record lists a practice address at 215 Halton RD, Greenville, SC, 29607. Phone: (864) 454-2700. Providers update this record themselves, so call before visiting.

How can I verify William Patrick Marshall, M.D.'s license?

NPPES lists South Carolina license number 6434, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.