Grace Sullivan
NPI 1144169947 · Family Nurse Practitioner · Greenwich, CT
Grace Sullivan is a Family Nurse Practitioner provider in Greenwich, CT (NPI 1144169947).
Provider details
- NPI number
- 1144169947
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 12017032 (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
- 2026-03-26
- Last updated
- 2026-03-26
- Certified
- 2026-03-26
Frequently asked questions
- What is Grace Sullivan's NPI number?
- Grace Sullivan's National Provider Identifier (NPI) is 1144169947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Sullivan's specialty?
- Grace Sullivan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grace Sullivan located?
- Grace Sullivan's practice location on file with NPPES is 5 Perryridge Rd, Greenwich, CT 06830-4608.
- What is Grace Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Grace Sullivan is (203) 863-3000.
- Is Grace Sullivan's NPI active?
- Yes — Grace Sullivan's NPI (1144169947) is active in the NPPES registry as of the last update on 2026-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.