Individual provider Active NPI

Chelsi Toeun, ARNP

  • Emergency Medicine Physician
  • Marshalltown, IA
National Provider Identifier
1417818402
Registry record updated Nov 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A188046 Issued in IA
Practice address
55 Unitypoint Way
Marshalltown, IA 50158-4749
Phone
(641) 754-5040
NPI assigned
Nov 19, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 19, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X A188046 IA Primary

Addresses

Primary practice location

55 Unitypoint Way
Marshalltown, IA 50158-4749

Mailing address

1402 4TH Ave
Grinnell, IA 50112-2020
Phone (641) 821-5431

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IA
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

Enrollment IDStateProvider typePAC IDDetails
I20251226002238 IA Practitioner - Nurse Practitioner 4486997228 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2025
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

PO Box
Kansas City, MO 64184

Hospital & facility affiliations

  • Allen Hospital Hospital, Waterloo, IA, CCN 160110
  • Unitypoint Health - Marshalltown Hospital, Marshalltown, IA, CCN 160001

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
A188046IAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Salahuddin Syed MD PC Current Accepting new patients
Allen Memorial Hospital Corporation Emergency Medicine CurrentSince Feb 23, 2026 Accepting new patients
Unitypoint Health - Marshalltown Emergency Medicine CurrentSince Feb 23, 2026 Accepting new patients
City of Kellogg Current Accepting new patients
Unitypoint Health - Marshalltown CurrentSince Feb 23, 2026 Accepting new patients

Locations

55 Unitypoint Way
Marshalltown, IA 50158
Phone (641) 754-5145

1825 Logan Ave
Waterloo, IA 50703
Phone (319) 235-3886

Organizations & group practices 6

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

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1763510400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1417818402",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1402 4TH AVE",
            "city": "GRINNELL",
            "state": "IA",
            "postal_code": "501122020",
            "telephone_number": "641-821-5431"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 UNITYPOINT WAY",
            "city": "MARSHALLTOWN",
            "state": "IA",
            "postal_code": "501584749",
            "telephone_number": "641-754-5040"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOEUN",
        "first_name": "CHELSI",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-11-19",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IA",
            "license": "A188046",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Marshalltown, IA

Sources for this page

Verify at the official NPI Registry.