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Chiropractors in Mason City, IA

Browse 14 Chiropractor 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 Chiropractors per 100,000 residents, about 1.8 times the U.S. rate of 29.

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

The Iowa rate is 63 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.

75% of Chiropractors in Mason City listed in the CMS Medicare file (9 of 12) accept Medicare assignment. That is lower than the Iowa share of 81%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

None of the 12 Chiropractors in Mason City listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

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. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Chiropractor Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Chiropractor practitioners in Mason City, IA

Source: CMS PECOS
PECOS Enrolled Specialists 12 In Mason City, IA
Part B Lab & Imaging Eligible 0 Diagnostic Referrals
DME Ordering Eligible 0 Durable Medical Equipment
Home Health Agency Referrals 0 HHA Ordering Eligible
Showing 1โ€“14 of 14 providers
With recent CMS data first, then Aโ€“Z

Dr. Brett Allen Cornish , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
1911 4th St Sw, Suite C, Mason City, IA 504014619
Phone: 6412011028
NPI Identifier 1548404007
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Dr. Damon C Dornbier , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
1315 6th St Sw, Mason City, IA 504014815
Phone: 6414245171
NPI Identifier 1811960586
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Dr. David William Haas , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
1403 S. Federal Ave., Mason City, IA 50401
Phone: 6414246531
NPI Identifier 1366454332
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Dr. Richard William Haas , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
1403 S Federal Ave, Mason City, IA 50401
Phone: 6414246531
NPI Identifier 1770591703
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Dr. Nolan Hirota , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
1315 6th St Sw, Mason City, IA 504014815
Phone: 6414245171
NPI Identifier 1912441858
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Active NPI Status Accepts Medicare Assignment
1529 S Monroe Ave, Mason City, IA 504015617
Phone: 6414235588
NPI Identifier 1568438364
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Dr. Scott W Nelson , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
423 4th St Sw, Suite A, Mason City, IA 504013836
Phone: 6414240992
NPI Identifier 1679558001
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Dr. Scott Redman , DC

Chiropractor

Active NPI Status
2013 4th St Sw, Mason City, IA 504014605
Phone: 6414501100
NPI Identifier 1427611763
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Dr. Gregory J Shirk , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
630 1st St Nw, Mason City, IA 504012947
Phone: 6414234455
NPI Identifier 1629064464
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Dr. Auston Shrader , DC

Chiropractor

Active NPI Status Accepts Medicare Assignment
1403 S Federal Ave, Mason City, IA 504015727
Phone: 6414246531
NPI Identifier 1043077357
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Active NPI Status
122 N Federal Ave, Mason City, IA 504013227
Phone: 6412011975
NPI Identifier 1134431679
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Dr. Joeli Emma Koenig , DC

Chiropractor

Active NPI Status
1315 6th St Sw, Mason City, IA 504014815
Phone: 6412011975
NPI Identifier 1659171627
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Dr. Ronald Ommen Masters , DC

Chiropractor

Active NPI Status
100 1st St Nw Ste 110, Mason City, IA 504013172
Phone: 6414211116
NPI Identifier 1588827471
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Dr. Cassidy Vitzthum , DC

Chiropractor

Active NPI Status
2615 Skyview Lane, Suite B, Mason City, IA 50401
Phone: 6415487264
NPI Identifier 1780393322
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Frequently Asked Questions about Chiropractor in Mason City

How do I check a Chiropractor 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.