Sarah Diane Schaefer-Nguyen, RN

Primary specialty

Registered NurseTaxonomy code 163W00000X

License

4704354915 Issued in MI

Practice address

775 36TH St SE
Grand Rapids, MI 49548-2319

Phone

(616) 301-8000

NPI assigned

Jan 19, 2026

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

Credentials

Registered Nurse

State licenses

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

{
    "created_epoch": "1768780800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768780800000",
    "number": "1629937495",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 890",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495180890",
            "telephone_number": "616-301-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "775 36TH ST SE",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495482319",
            "telephone_number": "616-301-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHAEFER-NGUYEN",
        "first_name": "SARAH",
        "middle_name": "DIANE",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-01-19",
        "last_updated": "2026-01-19",
        "certification_date": "2026-01-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "MI",
            "license": "4704354915",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Claire E Schaar, MD
• Spencer Schab, DDS
• Rachel Schaedel-Patchava, LMSW, CAADC
• Abigail Diane Schaedig
• Corey B Schaedig, PA
• Benjamin Schaefer, PA
• Erica Schaefer, LPC
• Marissa A Schaefer, P.A.
• Tyler John Schaefer, PA-C
• William Anthony Schaefer, MD

• Registered Nurse in Grand Rapids, MI
• Providers in Grand Rapids, MI by specialty
• Registered Nurse in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 19, 2026; 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.