NPPES file of Aug 9, 2026

John Clemmons, PHD

Psychologist · Hattiesburg, MS

John Clemmons, PHD is a psychologist with a practice address in Hattiesburg, Mississippi, and NPI 1104916766, issued on Oct 13, 2006. Check the license (Mississippi 52911, 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 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104916766
Name
John Clemmons
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License number
52911 MS
Self-reported in NPPES; status is on the state search
Practice location
239 Methodist Blvd, Hattiesburg, MS 39402
Phone
(601) 296-2125
Enumerated
Oct 13, 2006
Record last updated
Oct 8, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(601) 268-8645
Medicaid ID
03051508 MS
Medicare enrollment
Enrolled (PECOS I20121106000568); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 239 Methodist Blvd

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

  1. Barbara Ellender, PHDClinical Psychologist1679789697
  2. Elizabeth Ann Roberson, M.D.Psychiatry Physician1447291208

Verify John Clemmons 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 52911
    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

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The MIPS final score for 2023 (Medicare payment program): 89.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Wesley Physician Services LLCHattiesburg, MS

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

John Clemmons among 128 psychologist records in Mississippi

John Clemmons, PHD is one of 128 psychologist records with a practice address in Mississippi. 10% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 71% newer
  • In a Medicare fileYes · 10% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated2004 · median 1991 among the 16 with a school on file
  • Record last updated2020 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychologist providers in Mississippi

There are 128 psychologist records in Mississippi.

The 8 psychologist records with the nearest ZIP codes

  1. Frank BaughHattiesburg, MS 394021619489861
  2. Sidne Buelow, PH.D.Hattiesburg, MS 394021164860029
  3. Barbara Carter, PHDHattiesburg, MS 394021922015890
  4. Evan Dart, PH.D.Hattiesburg, MS 394021740640275
  5. Brad Dufrene, PHDHattiesburg, MS 394021871292755
  6. John Harsh, PHDHattiesburg, MS 394021164559639
  7. Robert Hester, PHDHattiesburg, MS 394021295757870
  8. Rita Porter, PHDHattiesburg, MS 394021679705305

Common questions

What is John Clemmons, PHD's NPI number?

John Clemmons, PHD's National Provider Identifier (NPI) is 1104916766, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Clemmons, PHD located?

The NPPES record lists a practice address at 239 Methodist Blvd, Hattiesburg, MS, 39402. Phone: (601) 296-2125. Providers update this record themselves, so call before visiting.

How can I verify John Clemmons, PHD's license?

NPPES lists Mississippi license number 52911, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.

What is John Clemmons, PHD's MIPS final score?

The 2023 MIPS final score is 89.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.