Fionna Sayegh, NP
NPI 1578077988 · Women's Health Nurse Practitioner · Brookline, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fionna Sayegh, NP is a Women's Health Nurse Practitioner provider in Brookline, MA (NPI 1578077988).
Provider details
- NPI number
- 1578077988
- Entity type
- Individual
- Primary specialty
- Women's Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN255838 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
8 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
- 2017-11-21
- Last updated
- 2021-12-18
- Certified
- 2021-12-18
Frequently asked questions
- What is Fionna Sayegh's NPI number?
- Fionna Sayegh's National Provider Identifier (NPI) is 1578077988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fionna Sayegh's specialty?
- Fionna Sayegh is listed in the NPPES registry with a primary specialty of Women's Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Fionna Sayegh located?
- Fionna Sayegh's practice location on file with NPPES is 1 Brookline Pl, Brookline, MA 02445-7224.
- What is Fionna Sayegh's phone number?
- The practice phone number listed in the NPPES registry for Fionna Sayegh is (617) 732-1505.
- Does Fionna Sayegh accept Medicare?
- Fionna Sayegh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fionna Sayegh's NPI active?
- Yes — Fionna Sayegh's NPI (1578077988) is active in the NPPES registry as of the last update on 2021-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.