Katie L McMaster, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

MD-56048 Issued in IA

Practice address

200 Hawkins Dr
Iowa City, IA 52242-1009

Phone

(319) 356-3457

Fax

(319) 353-7145

NPI assigned

Apr 11, 2019

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

General SurgeryAlso: Critical Care (Intensivists)

Education

Indiana University School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Iowa Hospital & Clinics Hospital, Iowa City, IA, CCN 160058
• Jefferson County Health Center Hospital, Fairfield, IA, CCN 161364

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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

  Surgery

  Medicare reassignment Care Compare group NPD
• State University of Iowa

  • Student Health Clinic/Center
  • Iowa City, IA
  • NPI 1285635664
  NPD (past)
• State University of Iowa

  • General Acute Care Hospital
  • Iowa City, IA
  • NPI 1376544320
  NPD (past)

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

• Jefferson County Hospital

  • Critical Access Hospital
  • Fairfield, IA
  • NPI 1376648329
  Care Compare affiliation
• State University of Iowa

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

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

{
    "created_epoch": "1554940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763337600000",
    "number": "1215490735",
    "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": "319-356-3457",
            "fax_number": "319-353-7145"
        },
        {
            "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": "319-356-3457",
            "fax_number": "319-353-7145"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMASTER",
        "first_name": "KATIE",
        "middle_name": "L",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-11",
        "last_updated": "2025-11-17",
        "certification_date": "2025-11-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IA",
            "license": "MD-56048",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IN",
            "license": "01094055A",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "IA",
            "license": "MD-56048",
            "primary": false
        },
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "IA",
            "license": "MD-56048",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ryan James McLoughlin, MD
• Caroline McMahon, ARNP
• Johnie McMahon
• Megan Maureen McMahon
• Emory McManimon, MD
• Alexandra McMillan, MD, PHD
• Christine Marie McNair
• Karl Patrick McNamara
• Patrick Joseph McNamara, MB BCH BAO MSC
• Gwen Elise McNatt, APRN

• Surgery Physician in Iowa City, IA
• Providers in Iowa City, IA by specialty
• Surgery Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 17, 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.