Individual provider Active NPI

Sean Cihak, NP

  • Flight Registered Nurse
  • Avon, SD
National Provider Identifier
1396655049
Registry record updated Sep 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Flight Registered NurseTaxonomy code 163WF0300X
License
R043703 Issued in SD
Practice address
308 Maple St
Avon, SD 57315-2127
Phone
(605) 491-2061
NPI assigned
Sep 8, 2026
Last updated
Sep 8, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 8, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Flight Registered Nurse 163WF0300X R043703 SD Primary

Addresses

Primary practice location

308 Maple St
Avon, SD 57315-2127

Mailing address

308 Maple St
Avon, SD 57315-2127
Phone (605) 491-2061

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
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
R043703SDMDFlight Registered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1788825600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788825600000",
    "number": "1396655049",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "308 MAPLE ST",
            "city": "AVON",
            "state": "SD",
            "postal_code": "573152127",
            "telephone_number": "605-491-2061"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "308 MAPLE ST",
            "city": "AVON",
            "state": "SD",
            "postal_code": "573152127",
            "telephone_number": "605-491-2061"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CIHAK",
        "first_name": "SEAN",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-09-08",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WF0300X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Flight",
            "state": "SD",
            "license": "R043703",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Avon, SD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 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.