Joann Diaz
NPI 1255064549 · Psychiatric/Mental Health Nurse Practitioner · Plymouth, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joann Diaz is a Psychiatric/Mental Health Nurse Practitioner provider in Plymouth, CT (NPI 1255064549).
Provider details
- NPI number
- 1255064549
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 00 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2022-07-05
- Last updated
- 2022-07-05
- Certified
- 2022-06-27
Frequently asked questions
- What is Joann Diaz's NPI number?
- Joann Diaz's National Provider Identifier (NPI) is 1255064549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joann Diaz's specialty?
- Joann Diaz is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joann Diaz located?
- Joann Diaz's practice location on file with NPPES is 86 Watch Tower Rd, Plymouth, CT 06782-2811.
- What is Joann Diaz's phone number?
- The practice phone number listed in the NPPES registry for Joann Diaz is (860) 485-4931.
- Does Joann Diaz accept Medicare?
- Joann Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joann Diaz's NPI active?
- Yes — Joann Diaz's NPI (1255064549) is active in the NPPES registry as of the last update on 2022-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.