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JILLIAN MARGULIES NP
NPI 1649041146
Nurse Practitioner - Adult Health in Smithtown, NY

Active since January 12, 2024PECOS EnrolledAccepts Medicare Assignment
50 NEW YORK AVE # 25A, SMITHTOWN, NY 11787(904) 372-3943(904) 212-1618 Get Directions Write a Review

NPPES record last updated: March 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 20, 2026, Sep 4, 2025 (2 updates tracked since 2025).

About Jillian Margulies Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JILLIAN MARGULIES NP (NPI 1649041146) is an individual adult health provider in Smithtown, New York, licensed in New York (311354) and active in the NPI registry since January 2024. She is enrolled in Medicare PECOS, is affiliated with Chsli St Joseph Hospital, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1649041146
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameJILLIAN MARGULIESCredential: NP
Location Address50 NEW YORK AVE # 25ASmithtown, NY 11787-3448
Mailing Address7751 Belfort Pkwy Ste 120Jacksonville, FL 32256-6921 · (904) 372-3943 · Fax (904) 212-1618
Phone(904) 372-3943
Fax(904) 212-1618
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateJanuary 12, 2024
Last NPPES UpdateMarch 20, 20262 updates tracked since enumeration
NPPES CertifiedMarch 20, 2026
✔ NPI 1649041146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in NY · 311354
Also ListedNurse PractitionerTaxonomy 363L00000X · License F311354-01 (NY)
50 NEW YORK AVE # 25A, Smithtown, NY 11787
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jillian Margulies Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID648790857
PECOS Enrollment IDI20250218003137
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Chsli St Joseph Hospital

Acute Care Hospitals · Bethpage, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330332
Location4295 Hempstead TurnpikeBethpage, NY 11714 · Nassau County
Emergency services

St Catherine Of Siena Hospital Medical Center

Acute Care Hospitals · Smithtown, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330401
Location50 Route 25ASmithtown, NY 11787 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11787 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. DONALD PETER JOHNSON
Nurse Practitioner (Family)
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (631) 862-3000
CHRISTOPHER RIO
Student in an Organized Health Care Education/Training Program
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (631) 862-3000
JINCY RAJAN MD
Student in an Organized Health Care Education/Training Program
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (631) 862-3748
MR. MICHAEL CRESSON NP
Nurse Practitioner (Adult Health)
50 NEW YORK AVE # 25A, CARDIAC CATH LAB
SMITHTOWN, NY 11787
Suffolk County (631) 862-3215
DAVID RAPOPORT MD
Emergency Medicine
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (631) 862-3000
COURTNEY KENNEDY DO
Emergency Medicine
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (631) 862-3000
KENNY WANG PA
Physician Assistant
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (904) 372-3943
AIDA BOUMIZA DO
Student in an Organized Health Care Education/Training Program
50 NEW YORK AVE # 25A
SMITHTOWN, NY 11787
Suffolk County (631) 862-3748

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jillian Margulies's NPI number?

The NPI number for Jillian Margulies is 1649041146. It was assigned to this individual provider in the NPPES registry on January 12, 2024.

Where is Jillian Margulies located?

Jillian Margulies practices at 50 New York Ave # 25A, Smithtown, NY 11787. The listed phone number is (904) 372-3943.

What is Jillian Margulies's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Jillian Margulies enrolled in Medicare?

Yes. Jillian Margulies is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Jillian Margulies affiliated with any hospitals?

According to CMS data, Jillian Margulies is affiliated with Chsli St Joseph Hospital and St Catherine Of Siena Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Jillian Margulies was last updated on March 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.