MercyOne North Iowa Ear, Nose, Throat and Allergy
Otolaryngology (ENT) • Mason City, IA
About
MercyOne North Iowa Ear, Nose, Throat and Allergy in Mason City, Iowa provides diagnosis and treatment of ear, nose, sinus, throat, and neck conditions. The clinic offers services including allergy management, ear infections, sinus surgery, hearing loss surgery, sleep apnea treatment, thyroid surgery, and head and neck cancer care, with both in-person and virtual visit options available.
Clinic Type
Otolaryngology (ENT)
Address
250 S. Crescent Drive, Suite M1400, Mason City, IA 50401
Phone
1641-494-5380
todd.mizener@mercyone.org
Opening Hours
8:00am - 5:00pm
Telehealth
Available (virtual visits)
Services Offered
Team
Insurance & Payment
—
Languages Spoken
FAQs
What services are offered at MercyOne North Iowa Ears, Nose, Throat and Allergy?
Allergy Management; Ear Infections Acute and Chronic; Head and Neck Cancer; Hearing Loss Surgery; Inspire for CPAP Users; Sleep Apnea; Sinusitis; Nasal and Sinus Surgery; Snoring; Skin Cancer Removal; Thyroid Surgery; Tonsils and Adenoids; and more related ENT subspecialties.
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: positive
- U.S. News & World Report: 5/5 (416 reviews (Dr. Timothy M. Dettmer))
- U.S. News & World Report: 5/5 (151 reviews (Dr. Phillip C. Lee))
Patients praise
- Patients highly rate the ENT specialists for their caring and professional approach.
- Providers are praised for thoroughly explaining medical conditions and treatment options.
- Staff are recognized for their responsiveness to urgent patient needs and compassionate communication.
- Minimal wait times reported for ENT appointments specifically.
Common complaints
- Reports of administrative issues at the broader MercyOne North Iowa system, such as rude front-desk staff, misrouted calls, and long wait times in other departments (e.g., Emergency Room, Family Medicine Residence).
"Angel heard the urgency in my voice. She heard my pain. ... Everyone was great, and I was treated with 0.3% Ofloxacin Otic solution ear drops and 500mg oral Ciprofloxacin. ... At both the Albert Lea clinic and the Mason City Clinic, everyone I came in contact with cared. They cared at 100%."
— Patient testimonial published on mcclinic.com"Patients consistently praise this provider for their caring and professional approach. They appreciate the provider's thoroughness in explaining medical conditions and treatment options, as well as their willingness to answer questions and address concerns."
— Summary of patient reviews on U.S. News & World Report for Dr. Phillip C. LeeSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
Information sourced from the clinic's website as of July 11, 2026.
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