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Registered Nurses in Mason City, IA

Browse 14 Registered Nurse providers listed in NPPES with a practice address in Mason City, Iowa.

14 Healthcare Providers

How Mason City compares with the U.S.

Mason City has 52 Registered Nurses per 100,000 residents, 17% higher than the U.S. rate of 44.

That is 14 active Registered Nurses with a practice address in Mason City, for a population of 27,050.

The Iowa rate is 26 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

None of the Registered Nurses in Mason City are listed in the CMS Medicare file.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Showing 1โ€“14 of 14 providers
With recent CMS data first, then Aโ€“Z

Lisa L Biebesheimer , RN

Registered Nurse

Active NPI Status
235 S Eisenhower Ave, Mason City, IA 504011562
Phone: 6414242075
NPI Identifier 1164739959
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Lois Diane Carlson , RN

Registered Nurse

Active NPI Status
235 S Eisenhower Ave, Mason City, IA 504011562
Phone: 6414242075
NPI Identifier 1831557347
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Kristen Day , RN

Registered Nurse

Active NPI Status
1000 4th St Sw, Mason City, IA 504012800
Phone: 6414287000
NPI Identifier 1679266746
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Kelli Jo Dorsey , RN

Registered Nurse

Active NPI Status
235 S Eisenhower Ave, Mason City, IA 504011562
Phone: 6414242075
NPI Identifier 1003197526
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Jacqueline Rae Frenz

Registered Nurse

Active NPI Status
1000 4th St Sw, Mason City, IA 504012800
Phone: 6414287053
NPI Identifier 1619833167
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Kasandra Humburg , RN

Registered Nurse

Active NPI Status
320 N Eisenhower Ave, Mason City, IA 504011521
Phone: 6414242391
NPI Identifier 1871248229
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Tori Marie Jones , RN

Registered Nurse

Active NPI Status
478 Tiffany Dr, Mason City, IA 504011535
Phone: 6414945000
NPI Identifier 1134049661
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Kelsey Marie Mceniry

Registered Nurse

Active NPI Status
320 N Eisenhower Ave, Mason City, IA 504011521
Phone: 6414242391
NPI Identifier 1124671110
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Jori Meints , RN

Registered Nurse

Active NPI Status
320 N Eisenhower Ave, Mason City, IA 504011521
Phone: 6415486169
NPI Identifier 1932081858
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Sally K Roper , ARNP, FNP

Registered Nurse

Active NPI Status
910 N Eisenhower Ave, Mason City, IA 504011525
Phone: 6414218077
NPI Identifier 1538100342
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Colleen Ann Sanft , BS RNC

Registered Nurse

Active NPI Status
235 S Eisenhower Ave, Mason City, IA 504011562
Phone: 6414242075
NPI Identifier 1225141575
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Jill Schutz , RN

Registered Nurse

Active NPI Status
320 N Eisenhower Ave, Mason City, IA 504011521
Phone: 6415486195
NPI Identifier 1386342103
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Jayne Susan Shaffer

Registered Nurse

Active NPI Status
235 S Eisenhower Ave, Mason City, IA 504011562
Phone: 6414242075
NPI Identifier 1720521180
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Melissa Ward , RN, BSN

Registered Nurse

Active NPI Status
478 Tiffany Dr, Mason City, IA 504011535
Phone: 6414945000
NPI Identifier 1811603046
View Full Profile

Frequently Asked Questions about Registered Nurse in Mason City

How do I check a Registered Nurse practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Iowa licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.