NPPES file of Aug 9, 2026

William Mark Molpus, M.D.

Neuroradiology Physician · Hattiesburg, MS

William Mark Molpus, M.D. is a neuroradiology physician with a practice address in Hattiesburg, Mississippi, and NPI 1437189099, issued on Jul 3, 2006. Check the license (Mississippi 12221, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1437189099
Name
William Mark Molpus
Credential
M.D.
Primary taxonomy
Neuroradiology Physician 2085N0700X
License number
12221 MS
Self-reported in NPPES; status is on the state search
Practice location
5000 W 4TH St, Hattiesburg, MS 39402
Phone
(601) 450-0521
Enumerated
Jul 3, 2006
Record last updated
May 7, 2026
Fax
(601) 450-0554
Medicaid ID
00116212 MS
Medicare enrollment
Enrolled (PECOS I20080103000681); accepts Medicare assignment
Medical or professional school
University Of Mississippi School Of Medicine, 1988
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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5 nearest neuroradiology physician records → All 6 in Mississippi → Look up another NPI →

Also registered at 5000 W 4TH St

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

  1. Thomas Cole, M.D.Diagnostic Radiology Physician1639107121
  2. Steven Cunningham, MDDiagnostic Radiology Physician1336140078
  3. Kenneth Duff, M.D.Diagnostic Radiology Physician1750310066
  4. Craig Howard, M.D.Diagnostic Radiology Physician1003844242
  5. Cleveland Hudson, M.D.Diagnostic Radiology Physician1043249485
  6. Scott Keeler, M.D.Diagnostic Radiology Physician1801826474

Verify William Mark Molpus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
    Search for license 12221    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 Mississippi 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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4 hospitals and group practices

  1. Comprehensive Radiology Services PLLCTylertown, MS
  2. Field Memorial Community HospitalCentreville, MS
  3. Franklin County Memorial HospitalBude, MS · Critical Access Hospitals
  4. Hattiesburg Clinic PAHattiesburg, MS

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Neuroradiology Physician providers in Mississippi

There are 6 neuroradiology physician records in Mississippi.

All 6 in Mississippi → Every provider in Hattiesburg → Neuroradiology Physician nationwide →

The 5 neuroradiology physician records with the nearest ZIP codes

  1. Richard McCarthy, M.D.Hattiesburg, MS 394021285663500
  2. Zachary Liner, M.D.Gulfport, MS 395011710203971
  3. Jeffrey HookerJackson, MS 392161073909271
  4. Ellen Parker, MDJackson, MS 392161225186349
  5. Bruce Schlakman, MDJackson, MS 392161093815565

Common questions

What is William Mark Molpus, M.D.'s NPI number?

William Mark Molpus, M.D.'s National Provider Identifier (NPI) is 1437189099, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Mark Molpus, M.D. located?

The NPPES record lists a practice address at 5000 W 4TH St, Hattiesburg, MS, 39402. Phone: (601) 450-0521. Providers update this record themselves, so call before visiting.

How can I verify William Mark Molpus, M.D.'s license?

NPPES lists Mississippi license number 12221, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. 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. Medicare files from data.cms.gov. 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.