Charmaine Diaz, MSN APRN FNP-BC
NPI 1306774021 · Family Nurse Practitioner · Fairfield, CT
Charmaine Diaz, MSN APRN FNP-BC is a Family Nurse Practitioner provider in Fairfield, CT (NPI 1306774021).
Provider details
- NPI number
- 1306774021
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN APRN FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 16726 (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
Under 1 yr in 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
- 2026-05-12
- Last updated
- 2026-06-04
- Certified
- 2026-06-04
Frequently asked questions
- What is Charmaine Diaz's NPI number?
- Charmaine Diaz's National Provider Identifier (NPI) is 1306774021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charmaine Diaz's specialty?
- Charmaine Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Charmaine Diaz located?
- Charmaine Diaz's practice location on file with NPPES is 425 Post Rd, Fairfield, CT 06824-6232.
- What is Charmaine Diaz's phone number?
- The practice phone number listed in the NPPES registry for Charmaine Diaz is (203) 254-2021.
- Is Charmaine Diaz's NPI active?
- Yes — Charmaine Diaz's NPI (1306774021) is active in the NPPES registry as of the last update on 2026-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.