William Mark Williams, MPT
Physical Therapist · Charleston, SC
William Mark Williams, MPT is a physical therapist with a practice address in Charleston, South Carolina, and NPI 1326261306, issued on Apr 10, 2007. Check the license (South Carolina 4761, as entered in NPPES) with the South Carolina board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Mark Williams
- Credential
- MPT
- Primary taxonomy
- Physical Therapist 225100000X
- License numbers
- 4761 SC
23039 FL
17604 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1778 Manassas Dr, Charleston, SC 29414
- Phone
- (843) 304-3259
- Enumerated
- Apr 10, 2007
- Record last updated
- Jan 25, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040708001053); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 3,905 in South Carolina → Look up another NPI →
Verify William Mark Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 4761Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Mark Williams among 3,905 physical therapist records in South Carolina
William Mark Williams, MPT is one of 3,905 physical therapist records with a practice address in South Carolina. 38% 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 2007, is newer than 15% of them.
- NPI issued2007 · 15% of these records are older, 77% newer
- In a Medicare fileNo · 38% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2003 · median 2017 among the 1,504 with a school on file
- Record last updated2017 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
238 physical therapist records list a practice address in Charleston
They are 238 of the 10,840 NPPES records with a practice address in Charleston, and 3,905 physical therapist records in South Carolina. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,905 in South Carolina → Every provider in Charleston → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Shelley Clayton, P.TNorth Charleston, SC 294141982849733
- Eileen Hoffman, PTCharleston, SC 294141306051156
- David Keppler, PTCharleston, SC 294141134254261
- Alicia Konen, PTCharleston, SC 294141417196957
- Jamie KornegayCharleston, SC 294141881775286
- Rebecca Lynn, MPTCharleston, SC 294141508006727
- Michael Manneraak, PT, MRS-PTCharleston, SC 294141356538102
- Rebekah Osgood, P.T.Charleston, SC 294141851415145
Common questions
What is William Mark Williams, MPT's NPI number?
William Mark Williams, MPT's National Provider Identifier (NPI) is 1326261306, issued on Apr 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Mark Williams, MPT located?
The NPPES record lists a practice address at 1778 Manassas Dr, Charleston, SC, 29414. Phone: (843) 304-3259. Providers update this record themselves, so call before visiting.
How can I verify William Mark Williams, MPT's license?
NPPES lists South Carolina license number 4761, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity 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. 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.