NPPES file of Aug 9, 2026

Stefan Massong, PH.D.

Clinical Psychologist · Biloxi, MS

Stefan Massong, PH.D. is a clinical psychologist with a practice address in Biloxi, Mississippi, and NPI 1568556082, issued on Oct 2, 2006. Check the license (Mississippi 35-579, as entered in NPPES) with the Mississippi board that licenses this profession; 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
1568556082
Name
Stefan Massong
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
35-579 MS
Self-reported in NPPES; status is on the state search
Practice location
2472 Pass RD, Biloxi, MS 39531
Phone
(228) 388-9303
Enumerated
Oct 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(228) 388-9306
Medicaid ID
00121755 MS
Medicare enrollment
Enrolled (PECOS I20080612000731); accepts Medicare assignment
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 2472 Pass RD

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

  1. Sherrie Pomierski, LPC, NBCC, NBSC, MSProfessional Counselor1285790246
  2. Cynthia Sava, LCSWSocial Worker1992897433
  3. Brannon Sims, FNP-BCPrimary Care Nurse Practitioner1588077820

Verify Stefan Massong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
    Search for license 35-579
    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
Find 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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Bills Medicare through one group practice

  1. Applied Psychology Ctr ApcOcean Springs, MS

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

17 clinical psychologist records list a practice address in Biloxi

They are 17 of the 1,402 NPPES records with a practice address in Biloxi, and 165 clinical psychologist records in Mississippi.

Other clinical psychologist records in Mississippi

  1. John Allin, PH.D.Jackson, MS1942374863
  2. Edward Anderson, PHDHattiesburg, MS1972546075
  3. Randolph ArnauHattiesburg, MS1255076097
  4. John Askew, PH.D.Florence, MS1770834152
  5. Rachel Bacigalupi, PHDBiloxi, MS1326511148
  6. Brandy Baczwaski, M.A.Oxford, MS1023450095
  7. Mary Bailey, PH.D.Jackson, MS1285899930
  8. Gerald Barrilleaux, PHDGulfport, MS1548285828
  9. Jeffry Bethay, PH.D.Oxford, MS1356591705
  10. Nadia Bethley, PH.D.Greenville, MS1649759309

Common questions

What is Stefan Massong, PH.D.'s NPI number?

Stefan Massong, PH.D.'s National Provider Identifier (NPI) is 1568556082, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stefan Massong, PH.D. located?

The NPPES record lists a practice address at 2472 Pass RD, Biloxi, MS, 39531. Phone: (228) 388-9303. Providers update this record themselves, so call before visiting.

How can I verify Stefan Massong, PH.D.'s license?

NPPES lists Mississippi license number 35-579, as entered by the provider. Search the Mississippi 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. 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.