Sydney Irwin

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

2025019598 Issued in MO

Practice address

1475 Kisker Rd Ste 200
Saint Charles, MO 63304-8788

Phone

(636) 498-5810

NPI assigned

Feb 7, 2025

Last updated

Oct 2, 2025By 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 MO

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, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

SSM Medical Group IncGroup PAC ID 6608776299, 565 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• SSM St Joseph Health Center Hospital, Saint Charles, MO, CCN 260005
• SSM St Joseph Hospital West Hospital, Lake Saint Louis, MO, CCN 260200

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.

• SSM Medical Group, Inc.

  dba SSM Health Medical Group

  • Multi-Specialty Clinic/Center
  • Fenton, MO
  • NPI 1700966207
  Medicare reassignment Care Compare group NPD
• SSM Medical Group Inc.

  dba SSM Health Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Warrenton, MO
  • NPI 1467997155
  NPD
• SSM Health Care St. Louis

  dba SSM Health St. Joseph Hospital - St. Charles Physician Billing

  • Emergency Medicine Physician
  • Saint Charles, MO
  • NPI 1427002922
  NPD (past)

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

• SSM Health Care St. Louis

  dba SSM Health St. Joseph Hospital - St. Charles

  • General Acute Care Hospital
  • Saint Charles, MO
  • NPI 1467521146
  Care Compare affiliation
• SSM Health Care St. Louis

  dba SSM Health St Joseph Hospital - Lake Saint Louis

  • General Acute Care Hospital
  • Lake St Louis, MO
  • NPI 1871665380
  Care Compare affiliation

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

{
    "created_epoch": "1738886400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759363200000",
    "number": "1316752363",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 955534",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631955534",
            "telephone_number": "636-498-5810"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1475 KISKER RD STE 200",
            "city": "SAINT CHARLES",
            "state": "MO",
            "postal_code": "633048788",
            "telephone_number": "636-498-5810"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2424 S 9th St Apt 218",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631044717",
            "country_code": "US",
            "telephone_number": "573-280-2127",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "IRWIN",
        "first_name": "SYDNEY",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-02-07",
        "last_updated": "2025-10-02",
        "certification_date": "2025-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MO",
            "license": "2025019598",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Integrity Home Health Services (Education Consultants LLC)
• Intensiva Hospital of Greater St. Louis Inc (Select Specialty Hospital - St. Louis)
• Interventional Pain Institute LLC
• Ion Pharmaceuticals
• Melissa Irvine
• Johanna Elisabeth Iwaszkowiec, IBCLC
• Romel Izquierdo-Malon, M.D.
• Jody T Jachna, MD
• Jack D. Griffin, Jr., D.M.D., St. Charles, LLC
• Keisha Jackson, LCSW

• Family Nurse Practitioner in Saint Charles, MO
• Providers in Saint Charles, MO by specialty
• Family Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 2, 2025; 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.