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Certified Registered Nurse Anesthetist (CRNA)

Laura C. Johnston, CNA

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

Summary

Laura C. Johnston, CNA is a nurse anesthetist at 1111 Duff Ave, Ames, IA 50010. Phone: (515) 239-2155. Accepts Medicare assignment. In 2024, Laura C. Johnston had 530 Original Medicare patients and 546 services. NPI 1093212607. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Nurse anesthetist (Medicare lists Certified Registered Nurse Anesthetist (CRNA))
  • Address: 1111 Duff Ave, Ames, IA 50010 · Directions (5 more locations)
  • Phone: (515) 239‑2155
  • Medicare: Accepts Medicare assignment
  • Hospitals: University of Iowa Hospital & Clinics, Van Diest Medical Center
  • Group practice: State University of Iowa (+4 more)
  • School: University Of Iowa, Rj & L Carver College Of Medicine · graduated 2020
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Laura C. Johnston, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Laura C. Johnston accept Medicare assignment?
Yes. Medicare's clinician data says Laura C. Johnston accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Laura C. Johnston see?
In 2024, CMS data shows 530 Original Medicare patients and 546 services for Laura C. Johnston. This counts Original Medicare only and measures volume, not quality.
What is Laura C. Johnston's NPI number?
1093212607. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Laura C. Johnston, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients530
Services billed to Medicare546
Different services or procedures31
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for lens surgery (00142)365 services
  2. Anesthesia for retinal surgery (00145)51 services
  3. Anesthesia for procedure on eyelid (00103)43 services
  4. Anesthesia for other procedure on eye (00140)31 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol74%
  • High blood pressure67%
  • Arthritis41%
  • Diabetes24%
  • Depression20%
  • Chronic kidney disease20%

Hospitals where Laura C. Johnston works

Medicare's Facility Affiliation Data lists Laura C. Johnston at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Laura C. Johnston is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Laura C. Johnston as a member of these groups (CMS data updated October 2, 2026).

  • State University of Iowa1,897 clinicians in the group
  • McFarland Clinic PC363 clinicians in the group
  • The Iowa Clinic PC310 clinicians in the group
  • Ikc LLC18 clinicians in the group
  • M and M Anesthesia LLC18 clinicians in the group

Specialties

Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Iowa →

Other nurse anesthetists in Iowa

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

All nurse anesthetists in Iowa →

Other clinicians in State University of Iowa

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialCNA
SchoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093212607
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians