NPPES file of Aug 9, 2026

Marsha L. Johnson Williams, M.D., MSCR

Internal Medicine Physician · Charleston, SC

Marsha L. Johnson Williams, M.D., MSCR is an internal medicine physician with a practice address in Charleston, South Carolina, and NPI 1104112606, issued on Jun 22, 2011. Check the license (South Carolina MD81710, 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
1104112606
Name
Marsha L. Johnson Williams
Credential
M.D., MSCR
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD81710 SC
0101255624 SC
Self-reported in NPPES; status is on the state search
Practice location
109 Bee St, Charleston, SC 29401
Phone
(843) 577-5011
Enumerated
Jun 22, 2011
Record last updated
Mar 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(843) 937-6100
Medicare enrollment
Enrolled (PECOS I20190108003121); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 2011
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 109 Bee St

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

  1. Lawrence AbaraPastoral Counselor1447743539
  2. Georganne Abrahamson, PT, DPTPhysical Therapist1649105826
  3. Anthony Abramczyk, PHARM.D., BCPS, R.PHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1679862148
  4. Steven Ackerman, MDDiagnostic Radiology Physician1134142425
  5. Soni Adams, LCSWClinical Social Worker1255570768
  6. Ruth Adekunle, M.D.Infectious Disease Physician1366784530

Verify Marsha L. Johnson Williams 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 MD81710
    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

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90% fewer Medicare Part D claims than the average internal medicine physician in 2024

304 Medicare Part D claims for 122 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Marsha Johnson Williams304
  2. Specialty average3,176

Most prescribed

  1. Cefdinir30 claims
  2. Prednisone25 claims
  3. Amoxicillin-Clavulanate Potass16 claims
  4. Amlodipine Besylate15 claims
  5. Azithromycin14 claims
  6. Pantoprazole Sodium12 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.

Bills Medicare through one group practice

  1. Southeastern Hospitalist Services PCSummerville, SC

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

427 internal medicine physician records list a practice address in Charleston

They are 427 of the 10,840 NPPES records with a practice address in Charleston, and 1,881 internal medicine physician records in South Carolina.

Other internal medicine physician records in South Carolina

  1. Sheharyar Abbasi, DOMyrtle Beach, SC1619617222
  2. John Abbott, M.D.Sumter, SC1093830762
  3. Amjad Abdulrahman, MDIrmo, SC1194718841
  4. Alvin Abinsay, M.D.Marion, SC1689608002
  5. Izabela Abissi, DOCharleston, SC1376387803
  6. Tinu Abraham, MDGreenwood, SC1194354399
  7. Natallia Abramovich, MDSeneca, SC1568647949
  8. Ibrahim Abu Dayah, MDMyrtle Beach, SC1306368667
  9. Lauren Abusal, MD, MSCRMyrtle Beach, SC1093552911
  10. John Adams, MDElgin, SC1750395570

Common questions

What is Marsha L. Johnson Williams, M.D., MSCR's NPI number?

Marsha L. Johnson Williams, M.D., MSCR's National Provider Identifier (NPI) is 1104112606, issued on Jun 22, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Marsha L. Johnson Williams, M.D., MSCR located?

The NPPES record lists a practice address at 109 Bee St, Charleston, SC, 29401. Phone: (843) 577-5011. Providers update this record themselves, so call before visiting.

How can I verify Marsha L. Johnson Williams, M.D., MSCR's license?

NPPES lists South Carolina license number MD81710, 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 Marsha L. Johnson Williams, M.D., MSCR prescribe under Medicare Part D?

In 2024, Marsha L. Johnson Williams, M.D., MSCR had 304 Medicare Part D claims for 122 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.