Jillian Margulies, NP

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

311354 Issued in NY

Practice address

50 New York Ave # 25a
Smithtown, NY 11787-3448

Phone

(904) 372-3943

Fax

(904) 212-1618

NPI assigned

Jan 12, 2024

Last updated

Mar 20, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Diabetes Management Partners LLCGroup PAC ID 9436435385, 66 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Catherine of Siena Hospital Hospital, Smithtown, NY, CCN 330401
• Chsli St Joseph Hospital Hospital, Bethpage, NY, CCN 330332

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Diabetes Management Partners LLC

  dba GlyCare

  • Endocrinology, Diabetes & Metabolism Physician
  • Bethpage, NY
  • NPI 1013461193
  Medicare reassignment Care Compare group NPD
• John T. Mather Memorial Hospital

  • Psychiatry Physician
  • Port Jefferson Station, NY
  • NPI 1376642371
  Medicare reassignment NPD
• John T. Mather Memorial Hospital

  • Critical Care Medicine (Internal Medicine) Physician
  • Port Jefferson, NY
  • NPI 1467249334
  Medicare reassignment NPD
• John T. Mather Memorial Hospital

  • Hospitalist Physician
  • Port Jefferson, NY
  • NPI 1932296316
  NPD
• Diabetes Management Partners LLC

  • Endocrinology, Diabetes & Metabolism Physician
  • Bel Air, MD
  • NPI 1245101617
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• St. Catherine of Siena Medical Center

  • General Acute Care Hospital
  • Smithtown, NY
  • NPI 1982663423
  Care Compare affiliation
• Wsnchs North, Inc.

  dba St. Joseph Hospital

  • General Acute Care Hospital
  • Bethpage, NY
  • NPI 1013998426
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1705017600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773964800000",
    "number": "1649041146",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7751 BELFORT PKWY STE 120",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322566921",
            "telephone_number": "904-372-3943",
            "fax_number": "904-212-1618"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "50 NEW YORK AVE # 25A",
            "city": "SMITHTOWN",
            "state": "NY",
            "postal_code": "117873448",
            "telephone_number": "904-372-3943",
            "fax_number": "904-212-1618"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARGULIES",
        "first_name": "JILLIAN",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-01-12",
        "last_updated": "2026-03-20",
        "certification_date": "2026-03-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "NY",
            "license": "F311354-01",
            "primary": false
        },
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "NY",
            "license": "311354",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Donna Manzi, LCSW-R, PHD
• Maple Avenue Midwives PLLC
• Daniel Mardkha, PTA
• Brian H Margolis, MD
• David M Margulies, M.D.
• Marin Medical Services, PLLC
• Edgar L. Marin, M.D.
• Morisa J Marin, M.D.
• Marina I Peredo MD PC
• Sarah Marine, FNP-C

• Adult Health Nurse Practitioner in Smithtown, NY
• Providers in Smithtown, NY by specialty
• Adult Health Nurse Practitioner in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.