Marilyn Harter, ARNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

A097804 Issued in IA

Practice address

412 E Church St
Marshalltown, IA 50158-2947

Phone

(641) 753-4021

Fax

(641) 753-4025

NPI assigned

Jun 30, 2015

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

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

Specialty

Nurse Practitioner

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Broadlawns Medical CenterGroup PAC ID 3678466166, 302 clinicians

Mercyone UrgentcareGroup PAC ID 6002294907, 22 clinicians

Mercy Clinics IncGroup PAC ID 7911810882, 441 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercyone Des Moines Medical Center Hospital, Des Moines, IA, CCN 160083
• Knoxville Hospital & Clinics Hospital, Knoxville, IA, CCN 161355

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mharter30870@direct.unitypoint.org
• Direct secure messaging: mharter4070398@direct.trinity-health.org
• Direct secure messaging: marilyn.harter.1@30813.direct.athenahealth.com
• Direct secure messaging: mharter638463@direct.ochin.org

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.

• Broadlawns Medical Center

  • General Acute Care Hospital
  • Des Moines, IA
  • NPI 1467447508
  Medicare reassignment Care Compare group NPD
• Mercy Clinics, Inc.

  • Primary Care Clinic/Center
  • Clive, IA
  • NPI 1487670923
  Medicare reassignment Care Compare group NPD
• Mercyone Urgentcare

  • Clinic/Center
  • Clinton, IA
  • NPI 1447995766
  Medicare reassignment Care Compare group NPD
• Knoxville Community Hospital Inc

  • Emergency Medicine Physician
  • Knoxville, IA
  • NPI 1770591661
  Medicare reassignment NPD
• Knoxville Community Hospital Inc

  • Critical Access Hospital
  • Knoxville, IA
  • NPI 1922087915
  Medicare reassignment NPD
• Mercyone Central Iowa Urgent Care

  • Clinic/Center
  • Des Moines, IA
  • NPI 1790422095
  Medicare reassignment NPD
• Sincera Health PLLC

  • Clinic/Center
  • Pella, IA
  • NPI 1811759715
  Medicare reassignment NPD
• Broadlawns Medical Center

  • Pharmacy
  • Des Moines, IA
  • NPI 1013197060
  NPD
• Knoxville Community Hospital Inc

  • Family Medicine Physician
  • Knoxville, IA
  • NPI 1578570677

  Nurse Practitioner

  NPD
• Mercyone Urgentcare

  • Oxygen Equipment & Supplies (DME)
  • Clinton, IA
  • NPI 1437030053
  NPD
• Sincera Health PLLC

  • Urgent Care Clinic/Center
  • Pella, IA
  • NPI 1235929225
  NPD
• St Luke'S Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD

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

• Catholic Health Initiatives - Iowa Corp

  • General Acute Care Hospital
  • West Des Moines, IA
  • NPI 1538395975
  Care Compare affiliation
• Catholic Health Initiatives-Iowa Corp

  • Clinical Medical Laboratory
  • Des Moines, IA
  • NPI 1104982743

  Hospital

  Care Compare affiliation
• Catholic Health Initiatives-Iowa Corp

  • General Acute Care Hospital
  • Des Moines, IA
  • NPI 1508964883
  Care Compare affiliation
• Catholic Health Initiatives, Ia-Corp

  • Mammography Clinic/Center
  • Des Moines, IA
  • NPI 1477984367

  Hospital

  Care Compare affiliation
• Knoxville Community Hospital Inc

  • Critical Access Hospital
  • Knoxville, IA
  • NPI 1922087915
  Care Compare affiliation
• Knoxville Community Hospital Inc

  • Medicare Defined Swing Bed Hospital Unit
  • Knoxville, IA
  • NPI 1952319840
  Care Compare affiliation

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

{
    "created_epoch": "1435622400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766275200000",
    "number": "1124401922",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 674721",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752674721",
            "telephone_number": "515-643-2519",
            "fax_number": "515-461-9783"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "412 E CHURCH ST",
            "city": "MARSHALLTOWN",
            "state": "IA",
            "postal_code": "501582947",
            "telephone_number": "641-753-4021",
            "fax_number": "641-753-4025"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2006 N 4th St Ste 200",
            "address_purpose": "LOCATION",
            "city": "Indianola",
            "state": "IA",
            "postal_code": "501254500",
            "country_code": "US",
            "telephone_number": "515-461-9784",
            "fax_number": "515-461-9783",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARTER",
        "first_name": "MARILYN",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-06-30",
        "last_updated": "2025-12-21",
        "certification_date": "2025-12-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IA",
            "license": "A097804",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Luke Robert Hansen, PSY,D
• Maggie Mary Hansen, ARNP
• Christopher M Hanson, CRNA
• Madeline Rene Harris, ATC
• Krystal Michelle Harrison
• Rachel Hatch, RN
• Erin Voyles Hatcher, ARNP
• Hawkeye Care Center of Marshalltown
• Leland Foster Hawkins
• Kyle Hebert, DPT

• Nurse Practitioner in Marshalltown, IA
• Providers in Marshalltown, IA by specialty
• Nurse Practitioner in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 21, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.