Sydney Greer, NNP

Primary specialty

Neonatal Nurse PractitionerTaxonomy code 363LN0000X

License

2025032565 Issued in MO

Practice address

615 S New Ballas Rd
Saint Louis, MO 63141-8221

Phone

(314) 251-6000

NPI assigned

Jul 10, 2025

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1752105600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757721600000",
    "number": "1851282719",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9139 N SWAN CIR",
            "city": "BRENTWOOD",
            "state": "MO",
            "postal_code": "631441161",
            "telephone_number": "314-677-4008"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "615 S NEW BALLAS RD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631418221",
            "telephone_number": "314-251-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREER",
        "first_name": "SYDNEY",
        "name_prefix": "Ms.",
        "credential": "NNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-07-10",
        "last_updated": "2025-09-13",
        "certification_date": "2025-09-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LN0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Neonatal",
            "state": "MO",
            "license": "2025032565",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Taylor John Greenwood, MD
• Andrew Thomas Greer, MD
• Karen Greer
• Kayla Greer
• Sara K Greer, MD
• Lydia N. Greffet, PA-C
• Andrea Renee Gregg, SLP
• Bonnie Elise Gregg, DNP, APRN, FNP-C
• Patricia W Gregg, RDH
• Sally Gregg

• Neonatal Nurse Practitioner in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Neonatal Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 13, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.