John Clemmons, PHD
NPI 1104916766 · Psychologist · Hattiesburg, MS
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Clemmons, PHD is a Psychologist provider in Hattiesburg, MS (NPI 1104916766).
Provider details
- NPI number
- 1104916766
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 52911 (MS)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
183 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychotherapy, 1 Hour90837 | 171 | $145 |
| Psychiatric Diagnostic Evaluation90791 | 12 | $164 |
Typical Medicare-allowed amounts for these services range $145–$164 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-13
- Last updated
- 2020-10-08
- Certified
- 2020-10-08
Frequently asked questions
- What is John Clemmons's NPI number?
- John Clemmons's National Provider Identifier (NPI) is 1104916766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Clemmons's specialty?
- John Clemmons is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Clemmons located?
- John Clemmons's practice location on file with NPPES is 239 Methodist Blvd, Hattiesburg, MS 39402-1297.
- What is John Clemmons's phone number?
- The practice phone number listed in the NPPES registry for John Clemmons is (601) 296-2125.
- Does John Clemmons accept Medicare?
- John Clemmons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Clemmons's NPI active?
- Yes — John Clemmons's NPI (1104916766) is active in the NPPES registry as of the last update on 2020-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.