Healthcare Providers & Facilities in Mason City, IA
Public healthcare directory of 869 individual practitioners and 232 healthcare facilities located in Mason City, Iowa.
Medical Specialties in Mason City
Select a specialty to view practitioner listings, practice locations, and qualifications.
Pharmacist
Student in an Organized Health Care Education/Training Program
Internal Medicine
Physician Assistant
Social Worker
Social Worker - Clinical
Nurse Practitioner - Family
Physical Therapist
Dentist - General Practice
Nurse Anesthetist, Certified Registered
Chiropractor
Emergency Medicine
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.
Allopathic & Osteopathic Physicians
- Allergy & Immunology (2)
- Anesthesiology (9)
- Dermatology (4)
- Family Medicine - Hospice and Palliative Medicine (2)
- Hospitalist (8)
- Internal Medicine - Cardiovascular Disease (9)
- Internal Medicine - Clinical Cardiac Electrophysiology (2)
- Internal Medicine - Interventional Cardiology (4)
- Internal Medicine - Medical Oncology (5)
- Internal Medicine - Pulmonary Disease (4)
- Neurological Surgery (3)
- Obstetrics & Gynecology (7)
- Ophthalmology (8)
- Orthopaedic Surgery (10)
- Otolaryngology (5)
- Pathology - Anatomic Pathology & Clinical Pathology (3)
- Pediatrics (8)
- Pediatrics - Adolescent Medicine (4)
- Psychiatry & Neurology - Neurology (2)
- Psychiatry & Neurology - Psychiatry (5)
- Radiology - Radiation Oncology (2)
- Surgery (6)
- Surgery - Vascular Surgery (2)
- Thoracic Surgery (Cardiothoracic Vascular Surgery) (2)
- Urology (6)
Behavioral Health & Social Service Providers
Chiropractic Providers
Dental Providers
- Dentist (11)
Dietary & Nutritional Service Providers
Eye and Vision Services Providers
- Optometrist (9)
Nursing Service Providers
Nursing Service Related Providers
- Technician (2)
Other Service Providers
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Podiatric Medicine & Surgery Service Providers
- Podiatrist (3)
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
Dr. Farzad Jamshidian , MD
Family Medicine
Benjamin Lewis
Physician Assistant - Medical
Dr. Aileen Prabhakaran , MD
Family Medicine
Claire Williams , PA
Physician Assistant
Holly Arciniega , ARNP
Nurse Practitioner - Family
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
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.