Jillian Margulies, NP
NPI 1649041146 · Adult Health Nurse Practitioner · Smithtown, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jillian Margulies, NP is a Adult Health Nurse Practitioner provider in Smithtown, NY (NPI 1649041146).
Provider details
- NPI number
- 1649041146
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 311354 (NY)
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
2 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
- 2024-01-12
- Last updated
- 2026-03-20
- Certified
- 2026-03-20
Frequently asked questions
- What is Jillian Margulies's NPI number?
- Jillian Margulies's National Provider Identifier (NPI) is 1649041146, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jillian Margulies's specialty?
- Jillian Margulies is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jillian Margulies located?
- Jillian Margulies's practice location on file with NPPES is 50 New York Ave # 25a, Smithtown, NY 11787-3448.
- What is Jillian Margulies's phone number?
- The practice phone number listed in the NPPES registry for Jillian Margulies is (904) 372-3943.
- Does Jillian Margulies accept Medicare?
- Jillian Margulies is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jillian Margulies's NPI active?
- Yes — Jillian Margulies's NPI (1649041146) is active in the NPPES registry as of the last update on 2026-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.