Individual provider Active NPI

Joann M Ermer-Seltun, ARNP

  • Nurse Practitioner
  • Mason City, IA
National Provider Identifier
1801998570
Registry record updated Jul 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
072091 Issued in IA
Practice address
1000 4TH St SW
Mason City, IA 50401-2800
Phone
(641) 428-8001
Fax
(641) 428-6160
NPI assigned
Sep 2, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 072091 IA Primary

Addresses

Primary practice location

1000 4TH St SW
Mason City, IA 50401-2800

Mailing address

621 S Illinois Ave
Suite 103
Mason City, IA 50401-5489
Phone (641) 494-3041

Other practice location 1

1010 4th St SW
Suite WHC
Mason City, IA 50401-2857
Phone (641) 422-6000

Other identifiers 3

IdentifierTypeStateIssuer
23466OtherIAWELLMARK
I16755OtherIANAS MEDICARE PART B
0428862MedicaidIA

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address jermerseltun3944315@direct.trinity-health.org Direct

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
I20040525000439 IA Practitioner - Nurse Practitioner 8325029697 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
North Iowa Mercy Clinics 304 clinicians

Practice addresses (Care Compare)

1631 4TH St SW
114B Mercyone North Iowa Women'S Health Car
Mason City, IA 50401-1612
Phone (641) 428-6000

Hospital & facility affiliations

  • Mercyone North Iowa Medical Center Hospital, Mason City, IA, CCN 160064

Merit-based Incentive Payment System (MIPS)

Final score
81.55 of 100Reported as group
Quality
73.89
Promoting interoperability
93
Improvement activities
40
Cost
70.44

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
072091IAMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
North Iowa Mercy Clinics CurrentSince Apr 2, 2012 Accepting new patients
North Iowa Mercy Clinics Nurse Practitioner CurrentSince Apr 2, 2012 Accepting new patients
North Iowa Mercy Clinics Current Accepting new patients
North Iowa Mercy Clinics Current Accepting new patients
Mercy Health Services-Iowa Corp Past Accepting new patients
Mercy Medical Center North Iowa Nurse Practitioner Past Accepting new patients
North Iowa Mercy Clinics Past Accepting new patients

Locations

1501 4th St SW
Ste Wc
Mason City, IA 50401
Phone (641) 422-7498

1000 4th St SW
#240
Mason City, IA 50401
Phone (515) 422-6000

1631 4th St SW
Ste 114B
Mason City, IA 50401
Phone (641) 428-6000

621 S Illinois Ave
Ste 103
Mason City, IA 50401

1000 4th St SW
Ste Er
Mason City, IA 50401
Phone (641) 422-7234

1037 19th St SW
Mason City, IA 50401
Phone (641) 423-0428

1000 4th St SW
Mason City, IA 50401
Phone (641) 424-6704

Organizations & group practices 7

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 1

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": "1157155200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752019200000",
    "number": "1801998570",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "621 S ILLINOIS AVE",
            "address_2": "SUITE 103",
            "city": "MASON CITY",
            "state": "IA",
            "postal_code": "504015489",
            "telephone_number": "641-494-3041",
            "fax_number": "641-494-3059"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 4TH ST SW",
            "city": "MASON CITY",
            "state": "IA",
            "postal_code": "504012800",
            "telephone_number": "641-428-8001",
            "fax_number": "641-428-6160"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1010 4th St SW",
            "address_2": "SUITE WHC",
            "address_purpose": "LOCATION",
            "city": "Mason City",
            "state": "IA",
            "postal_code": "504012857",
            "country_code": "US",
            "telephone_number": "641-422-6000",
            "fax_number": "641-422-6007",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ERMER-SELTUN",
        "first_name": "JOANN",
        "middle_name": "M",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-09-02",
        "last_updated": "2025-07-09",
        "certification_date": "2025-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IA",
            "license": "072091",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "WELLMARK",
            "identifier": "23466",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NAS MEDICARE PART B",
            "identifier": "I16755",
            "state": "IA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0428862",
            "state": "IA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jermerseltun3944315@direct.trinity-health.org",
            "affiliation": "N",
            "endpointDescription": "MercyOne North Iowa Direct Email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "1000 4th St SW",
            "city": "Mason City",
            "state": "IA",
            "country_code": "US",
            "postal_code": "504012800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Mason City, IA

Sources for this page

Verify at the official NPI Registry.