James Irby, PHD, ABPP-CN
NPI 1891805180 · Clinical Psychologist · Jackson, MS
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Irby, PHD, ABPP-CN is a Clinical Psychologist provider in Jackson, MS (NPI 1891805180).
Provider details
- NPI number
- 1891805180
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD, ABPP-CN
- Sex
- Male
- Sole proprietor
- No
- License
- 41669 (MS)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2009-02-25
Frequently asked questions
- What is James Irby's NPI number?
- James Irby's National Provider Identifier (NPI) is 1891805180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Irby's specialty?
- James Irby is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is James Irby located?
- James Irby's practice location on file with NPPES is 4500 I 55 North, Jackson, MS 39211.
- What is James Irby's phone number?
- The practice phone number listed in the NPPES registry for James Irby is (601) 982-8531.
- Does James Irby accept Medicare?
- James Irby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Irby's NPI active?
- Yes — James Irby's NPI (1891805180) is active in the NPPES registry as of the last update on 2009-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.