Individual provider Active NPI

Charles S Winslow, MD

  • Neonatal-Perinatal Medicine Physician
  • Grand Rapids, MI
National Provider Identifier
1629094412
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neonatal-Perinatal Medicine PhysicianTaxonomy code 2080N0001X
License
4301048835 Issued in MI
Practice address
200 Jefferson Ave SE
Nicu
Grand Rapids, MI 49503-4502
Phone
(616) 752-6902
NPI assigned
Jul 14, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 4301048835 MI
Neonatal-Perinatal Medicine Physician 2080N0001X 4301048835 MI Primary

Addresses

Primary practice location

200 Jefferson Ave SE
Nicu
Grand Rapids, MI 49503-4502

Mailing address

245 State St SE
Grand Rapids, MI 49503-4328

Other identifiers 2

IdentifierTypeStateIssuer
3473236MedicaidMI
4877975MedicaidMI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
4301048835MIMDPediatrics Physician

NPI Registry JSON

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

{
    "created_epoch": "1152835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1629094412",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "245 STATE ST SE",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495034328",
            "fax_number": "616-913-1818"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 JEFFERSON AVE SE",
            "address_2": "NICU",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495034502",
            "telephone_number": "616-752-6902"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WINSLOW",
        "first_name": "CHARLES",
        "middle_name": "S",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-14",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MI",
            "license": "4301048835",
            "primary": false
        },
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "MI",
            "license": "4301048835",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3473236",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4877975",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Grand Rapids, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.