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General Surgery

Katie L. McMaster, MD

Works at hospitals in Fairfield, IA · Iowa City, IA · Iowa

Summary

Katie L. McMaster, MD (General Surgery) is listed by Medicare at 2 hospitals in Fairfield, IA and Iowa City, IA. NPI 1215490735. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Katie L. McMaster, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

General SurgeryPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Indiana University School Of MedicineMedical school
FemaleGender (as listed)
State University of IowaGroup practice

Quick answers

Which hospitals does Katie L. McMaster work at?
Medicare's official clinician data lists Katie L. McMaster at 2 hospitals: Jefferson County Health Center and University of Iowa Hospital & Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Katie L. McMaster see patients?
Medicare's clinician data lists 1 practice location in Iowa City, IA. Call before your visit to confirm the address.
What is Katie L. McMaster's specialty?
Medicare lists General Surgery as the primary specialty, and also Critical Care (Intensivists).
Does Katie L. McMaster accept Medicare assignment?
Yes. Medicare's clinician data says Katie L. McMaster accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Katie L. McMaster?
(319) 356-1616, as listed in official Medicare / NPI Registry data.
What is Katie L. McMaster's NPI number?
1215490735. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Katie L. McMaster works

Medicare's Facility Affiliation Data lists Katie L. McMaster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Katie L. McMaster is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Katie L. McMaster as a member of this group (CMS data updated 2026-10-02).

  • State University of Iowa1,897 clinicians in the group

Specialties

Find other General Surgery doctors in Iowa →

Other general surgeons in Iowa City

Clinicians with the same Medicare primary specialty in Iowa City, IA — not a recommendation.

All general surgeons in Iowa City →

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215490735
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians