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Healthcare Providers & Facilities in Mason City, IA

Public healthcare directory of 869 individual practitioners and 232 healthcare facilities located in Mason City, Iowa.

869 Practitioners
232 Facilities
125 Specialties

Medical Specialties in Mason City

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Mason City

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 109 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dental Providers

Dietary & Nutritional Service Providers

Eye and Vision Services Providers

Nursing Service Related Providers

Other Service Providers

Podiatric Medicine & Surgery Service Providers

Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Speech, Language and Hearing Service Providers

Technologists, Technicians & Other Technical Service Providers

Featured Healthcare Providers in Mason City

Practitioner profiles in Mason City, IA with recent CMS Medicare or Open Payments data.

Dr. Brittani Bjelland , PharmD

Pharmacist

3450 4th St Sw, Mason City, IA
Phone: 6414231325
NPI 1295330108

Dr. Farzad Jamshidian , MD

Family Medicine

Medicare Accepted
1000 4th St Sw, Mason City, IA
Phone: 6414287234
NPI 1841439239

Benjamin Lewis

Physician Assistant - Medical

Medicare Accepted
1000 4th St Sw, Mason City, IA
Phone: 6414288001
NPI 1881393072

Dr. Aileen Prabhakaran , MD

Family Medicine

Medicare Accepted
910 N Eisenhower Ave, Mason City, IA
Phone: 6414287799
NPI 1578792289

Claire Williams , PA

Physician Assistant

Medicare Accepted
1421 4th St Sw, Mason City, IA
Phone: 6414282080
NPI 1629719737

Holly Arciniega , ARNP

Nurse Practitioner - Family

Medicare Accepted
1000 4th St Sw, Mason City, IA
Phone: 8004333883
NPI 1487935367

Largest Cities in Iowa

Other Iowa cities with a full directory, by the number of active practitioners listed in NPPES.

How Mason City compares with the U.S.

Compared with the U.S. as a whole, Mason City has more clinicians in Radiology - Diagnostic Radiology (4.5x), clinicians in Family Medicine (4.5x) and Nurse Practitioners (3.6x) per 100,000 residents.

Mason City has 3,213 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

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.

93% of clinicians in Mason City listed in the CMS Medicare file (307 of 330) accept Medicare assignment. That is similar to the Iowa share of 91%.

Only 330 of 869 active clinicians in Mason City appear in the CMS Medicare file, so this share describes that smaller group.

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.

13% of clinicians in Mason City listed in the CMS Medicare file (44 of 330) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Iowa share of 11%.

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).

Mason City CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Mason City, IA

Source: CMS public datasets

Healthcare operations in Mason City, IA encompass 869 active individual practitioners and 232 registered medical facilities across 125 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Mason City accounts for $49.3 Million across 349,609 prescription claims. 487 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.1 Million in payments reported by companies to 191 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $49.3M 349,609 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.1M 191 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 487 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $27.6M 476,661 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Mason City

Part B Lab & Imaging Eligible: 397
Durable Medical Equipment (DME): 404
Home Health Agency (HHA): 346
Source: CMS Order and Referring