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Timothy M Dettmer, MD, Mason City

Timothy M Dettmer, MD

Otolaryngology (ENT) • Mason City, IA

About

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Clinic Type

Otolaryngology (ENT) (multi-location group)

Address

250 S Crescent Drive, Mason City, IA 50401; 616 North 8th Street, Osage, IA 50461

Phone

(641) 494-5380

Email

beremarkable@mercyhealth.org

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.mercyonenorthiowaaffiliates.org/provider/timothy-m-dettmer-md-otolaryngology

Services Offered

  • Otolaryngology (ENT)

Team

  • Timothy M Dettmer, MD, Board Certified Otolaryngology, American Board of Otolaryngology — Otolaryngology, ENT

Insurance & Payment

—

Languages Spoken

  • English

FAQs

Board Certifications

Otolaryngology, American Board of Otolaryngology

Social Media

TwitterYoutubeFacebookLinkedinInstagram

Photos

Timothy M Dettmer, MD — photo 1 of 8Timothy M Dettmer, MD — photo 2 of 8Timothy M Dettmer, MD — photo 3 of 8Timothy M Dettmer, MD — photo 4 of 8Timothy M Dettmer, MD — photo 5 of 8Timothy M Dettmer, MD — photo 6 of 8Timothy M Dettmer, MD — photo 7 of 8Timothy M Dettmer, MD — photo 8 of 8

What Patients Say

Overall sentiment across review platforms: very positive

  • US News & World Report: 5/5 (416)
  • Healthgrades: 5.0/5.0 (113)

Patients praise

  • Highly recommended by patients
  • Friendly and caring demeanor
  • Professional and efficient staff
  • Clear explanations of conditions and treatments
  • Effective teamwork in clinical/surgical procedures
  • Strong focus on patient education and informed decision-making

Common complaints

  • Very few negative reports found; isolated mentions of needs for improvement in specific metrics like explaining conditions, providing follow-up, or staff interactions, which are heavily outweighed by positive experiences

"Dr. Dettmer is every personable and is up to date on evidenced based medical practices."

— WebMD

"I was very happy with the staff and especially Dr Dettmer. He is so friendly and caring. I would recommend him to anyone needing an ENT doctor."

— WebMD

"Dr. Dettmer and his staff did some minor in office surgery. Everything went well and they worked well together as a team."

— WebMD

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.

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