Gretchen M Kass, ARNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

A108659 Issued in IA

Practice address

200 Hawkins Dr
Iowa City, IA 52242-1009

Phone

(319) 356-2496

Fax

(319) 356-8378

NPI assigned

Apr 5, 2012

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Gretchen M Root Former name

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, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

State University of IowaGroup PAC ID 7618884230, 1,886 clinicians

Unified Therapy Services, IncGroup PAC ID 7618985714, 124 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Iowa Hospital & Clinics Hospital, Iowa City, IA, CCN 160058

Merit-based Incentive Payment System (MIPS)

Final score

80.02 of 100Reported as group

Quality

75.68

Promoting interoperability

78

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gkass2835@uihcdirect.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.

• State University of Iowa

  • Family Medicine Physician
  • Iowa City, IA
  • NPI 1477554814

  IA

  Medicare reassignment Care Compare group NPD
• State University of Iowa

  • Psychologist
  • Iowa City, IA
  • NPI 1073254181
  Care Compare group
• State University of Iowa

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Washington, IA
  • NPI 1093790578
  Care Compare group
• State University of Iowa

  • Community/Retail Pharmacy
  • North Liberty, IA
  • NPI 1114732559
  Care Compare group
• State University of Iowa

  • Pharmacy
  • Riverside, IA
  • NPI 1174845101
  Care Compare group
• State University of Iowa

  • Clinic Pharmacy
  • Iowa City, IA
  • NPI 1306304027
  Care Compare group
• State University of Iowa

  • General Acute Care Hospital
  • Iowa City, IA
  • NPI 1376544320
  Care Compare group
• State University of Iowa

  • Home Health Agency
  • Coralville, IA
  • NPI 1396511473
  Care Compare group
• State University of Iowa

  • Pharmacy
  • Iowa City, IA
  • NPI 1508858127
  Care Compare group
• State University of Iowa

  • Psychiatric Hospital Unit
  • Iowa City, IA
  • NPI 1548248321
  Care Compare group
• State University of Iowa

  • Dentist
  • Iowa City, IA
  • NPI 1609956234
  Care Compare group
• State University of Iowa

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • North Liberty, IA
  • NPI 1629054846
  Care Compare group

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

• State University of Iowa

  • General Acute Care Hospital
  • Iowa City, IA
  • NPI 1376544320

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1333584000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763596800000",
    "number": "1376809251",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 HAWKINS DR",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522421009",
            "telephone_number": "319-356-2496",
            "fax_number": "319-356-8378"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 HAWKINS DR",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522421009",
            "telephone_number": "319-356-2496",
            "fax_number": "319-356-8378"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "540 E Jefferson St Ste 205",
            "address_purpose": "LOCATION",
            "city": "Iowa City",
            "state": "IA",
            "postal_code": "522452479",
            "country_code": "US",
            "telephone_number": "319-688-7880",
            "fax_number": "319-688-7881",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 E Market St",
            "address_purpose": "LOCATION",
            "city": "Iowa City",
            "state": "IA",
            "postal_code": "522452633",
            "country_code": "US",
            "telephone_number": "319-339-3551",
            "fax_number": "319-248-7945",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KASS",
        "first_name": "GRETCHEN",
        "middle_name": "M",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-04-05",
        "last_updated": "2025-11-20",
        "certification_date": "2025-11-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IA",
            "license": "A108659",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IA",
            "license": "A108659",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GRETCHEN",
            "last_name": "ROOT",
            "middle_name": "M",
            "credential": "ARNP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Mark W Karwal, MD
• Benjamin Joseph Kash, MD
• Jaafar Khalid F Kashef Al-Ghetaa, MB, BCH, BAO
• Shilpa V Kasodekar, MBBS
• Roberta Kasper
• Hakoubou Kassim, RN
• Katherine L. Nydam Olivier, Lisw LLC
• Katherine L. Nydam Olivier, Lisw LLC
• Dana A Kathol, RD, LD
• Emily Kathol, PHARMD

• All providers in Iowa City, IA
• Nurse Practitioner in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 20, 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.