NPPES file of Aug 9, 2026

Jillian Margulies, NP

Adult Health Nurse Practitioner · Smithtown, NY

Jillian Margulies, NP is an adult health nurse practitioner with a practice address in Smithtown, New York, and NPI 1649041146, issued on Jan 12, 2024. Check the license (New York 311354, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649041146
Name
Jillian Margulies
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
311354 NY
F311354-01 NY
Self-reported in NPPES; status is on the state search
Practice location
50 New York Ave # 25A, Smithtown, NY 11787
Phone
(904) 372-3943
Enumerated
Jan 12, 2024
Record last updated
Mar 20, 2026
Fax
(904) 212-1618
Medicare enrollment
Enrolled (PECOS I20250218003137); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest adult health nurse practitioner records → All 6,028 in New York → Look up another NPI →

Also registered at 50 New York Ave # 25A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Monique AbarcaNurse Practitioner1538766902
  2. Victoria Behan, NPFamily Nurse Practitioner1972088342
  3. Aida Boumiza, DOStudent in an Organized Health Care Education/Training Program1508705005
  4. Michael Cresson, NPAdult Health Nurse Practitioner1144751934
  5. Donald JohnsonFamily Nurse Practitioner1033645577
  6. Elizabeth Juma, NPAdult Health Nurse Practitioner1952106676

Verify Jillian Margulies in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 311354    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Diabetes Management Partners LLCPort Jefferson, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jillian Margulies among 6,028 adult health nurse practitioner records in New York

Jillian Margulies, NP is one of 6,028 adult health nurse practitioner records with a practice address in New York. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 91% of them.

  • NPI issued2024 · 91% of these records are older, 5% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2023 · median 2016 among the 2,678 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

49 adult health nurse practitioner records list a practice address in Smithtown

They are 49 of the 1,907 NPPES records with a practice address in Smithtown, and 6,028 adult health nurse practitioner records in New York.

All 6,028 in New York → Every provider in Smithtown → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Marilyn AlterSmithtown, NY 117871316039530
  2. Carole Capparelli, ANPSmithtown, NY 117871083790364
  3. Stacey Cedeno, ANPSmithtown, NY 117871184749053
  4. Anna ChiramannilSmithtown, NY 117871194817320
  5. Valerie GraySmithtown, NY 117871497976542
  6. Jennifer Grella, APRN,BCSmithtown, NY 117871164527164
  7. Nina Gresser-TacettaSmithtown, NY 117871689766818
  8. Jo Ann Jacquemain, ANP-CSmithtown, NY 117871154511954

Common questions

What is Jillian Margulies, NP's NPI number?

Jillian Margulies, NP's National Provider Identifier (NPI) is 1649041146, issued on Jan 12, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Jillian Margulies, NP located?

The NPPES record lists a practice address at 50 New York Ave # 25A, Smithtown, NY, 11787. Phone: (904) 372-3943. Providers update this record themselves, so call before visiting.

How can I verify Jillian Margulies, NP's license?

NPPES lists New York license number 311354, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.