John Diamond, MD
NPI 1124029921 · Child & Adolescent Psychiatry Physician · Greenville, NC
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Diamond, MD is a Child & Adolescent Psychiatry Physician provider in Greenville, NC (NPI 1124029921).
Provider details
- NPI number
- 1124029921
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28170 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-08-03
- Last updated
- 2025-06-18
- Certified
- 2025-06-18
Frequently asked questions
- What is John Diamond's NPI number?
- John Diamond's National Provider Identifier (NPI) is 1124029921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Diamond's specialty?
- John Diamond is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Diamond located?
- John Diamond's practice location on file with NPPES is 525 Moye Blvd, Greenville, NC 27834-2849.
- What is John Diamond's phone number?
- The practice phone number listed in the NPPES registry for John Diamond is (252) 744-1406.
- Does John Diamond accept Medicare?
- John Diamond is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Diamond's NPI active?
- Yes — John Diamond's NPI (1124029921) is active in the NPPES registry as of the last update on 2025-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.