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Dietitian, Registereds in Mason City, IA

Browse 14 Dietitian, Registered 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 clinicians in Dietitian, Registered per 100,000 residents, 2.6 times the U.S. rate of 20.

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

The Iowa rate is 22 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. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

Too few clinicians in Dietitian, Registered in Mason City are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

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 Registry addresses can be out of date.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

Jennifer Arndt , MS, RDN, LD

Dietitian, Registered

Active NPI Status Accepts Medicare Assignment
1010 4th St Sw Ste 120, Mason City, IA 504012856
Phone: 6414286020
NPI Identifier 1306407176
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Kelsi Bauermeister , RD, LD

Dietitian, Registered

Active NPI Status
1000 4th St Sw, Mason City, IA 504012800
Phone: 6144281951
NPI Identifier 1972900454
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Keith Hargis , RD, LD

Dietitian, Registered

Active NPI Status
910 N Eisenhower Ave, Mason City, IA 504011552
Phone: 6414287799
NPI Identifier 1669800454
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Alicia Helm , RDN, LD

Dietitian, Registered

Active NPI Status
1010 4th St Sw, Ste 120, Mason City, IA 504012857
Phone: 6414286020
NPI Identifier 1982355566
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Kathleen J Koch , RD, LD

Dietitian, Registered

Active NPI Status
1000 4th St Sw, Mason City, IA 504012800
Phone: 6414227000
NPI Identifier 1407173719
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Joan K Maertens , RD, LD

Dietitian, Registered

Active NPI Status
910 N Eisenhower Ave, Suite Mod, Mason City, IA 504011525
Phone: 6414226443
NPI Identifier 1770623472
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Sugianawaty Mulia , RD, LD

Dietitian, Registered

Active NPI Status
1000 4th St Sw, Mason City, IA 504012800
Phone: 6414227000
NPI Identifier 1114245909
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Megan Jane Noonan-Conlon , RD, LD

Dietitian, Registered

Active NPI Status
2400 4th St Sw, Mason City, IA 504014664
Phone: 6414242605
NPI Identifier 1538506084
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Stephanie Ann Norris , RD, LD

Dietitian, Registered

Active NPI Status
551 S Illinois Ave, Mason City, IA 504014441
Phone: 6414249741
NPI Identifier 1750623773
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Sara Jo O'tool , RD, LD

Dietitian, Registered

Active NPI Status
2400 4th St Sw, Mason City, IA 504014664
Phone: 6414242605
NPI Identifier 1699132449
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Jessica Pavlinec , RD, LD

Dietitian, Registered

Active NPI Status
551 S Illinois Ave, Mason City, IA 504014441
Phone: 6414249741
NPI Identifier 1760804017
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Alyssa Anne Rider , MS, RD, LD

Dietitian, Registered

Active NPI Status
621 S Illinois Ave, Mason City, IA 504015405
Phone: 6414282320
NPI Identifier 1952656654
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Julie M Walker , RDLD

Dietitian, Registered

Active NPI Status
910 N Eisenhower Ave, Suite Mod, Mason City, IA 504011525
Phone: 6414225244
NPI Identifier 1497896336
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Jenna Lee Whittle , RD, LD

Dietitian, Registered

Active NPI Status
520 S Pierce Ave, Mason City, IA 504012749
Phone: 5157217270
NPI Identifier 1780177154
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Frequently Asked Questions about Dietitian, Registered in Mason City

How do I check a Dietitian, Registered 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.