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About

MercyOne North Iowa Dermatology Care in Mason City is part of MercyOne, a nonprofit Catholic health system affiliated with Trinity Health. The organization provides hospital and outpatient services across Iowa, including dermatology. If you’re looking for dermatology appointments in Mason City, you can contact MercyOne’s Mason City location or visit MercyOne’s website for patient portal access, appointment scheduling, and dermatology service details. For exact address, hours, and to confirm current dermatology offerings in Mason City, check MercyOne’s official site or call 515-247-3121 for referrals and scheduling.

Clinic Type

Dermatology

Address

1421 4th St. SW, Mason City, IA 50401

Phone

641-428-2080

Email

todd.mizener@mercyone.org

Opening Hours

7:15am–6:00pm

Services Offered

  • Dermatology
  • Medical Spa and Aesthetics
  • Aesthetic Treatments

Team

  • Laura Thorson, Dermatology (PA-C) — PA-C
  • Yen Chen Liu, Dermatology — MD
  • Anwar Androun, Dermatology — PA-C
  • Kaitlyn Nettleton, Dermatology — DNP, ARNP
  • Heather Lamb, Dermatology — PA
  • Carrissa Riggs, Dermatology — PA

Insurance & Payment

Languages Spoken

  • English

FAQs

What services are offered at MercyOne North Iowa Dermatology Care?

Dermatology treatments for skin conditions such as psoriasis, rosacea, moles, acne, warts, eczema, Mohs surgery, skin cancer; aesthetic treatments including Botox and fillers.

Do you offer Mohs surgery?

Yes, Mohs Surgery is listed among the dermatology services.

Are there providers accepting new patients?

Yes, several providers are listed as Accepting New Patients.

Photos

What Patients Say

Overall sentiment across review platforms: very positive

  • MercyOne/Ratings.MD verified patient surveys: 4.8 to 5.0 out of 5 stars across various providers (hundreds of verified ratings per provider)
  • Birdeye: 4.0 out of 5 stars (4 reviews)

Patients praise

  • professional and knowledgeable providers
  • friendly and caring staff
  • thorough examinations and explanations
  • excellent patient communication and bedside manner
  • efficient care delivery

Common complaints

  • occasional long wait times
  • concerns about staff conversations being audible to patients in exam rooms

"Dr. Liu is the best!!! This was my second Mohs surgery and I was totally confident with his knowledge, professionalism, and care for me as his patient."

Verified patient review via Ratings.MD

"I would rate Heather Lamb a 10/10 and recommend her to anyone in need of a dermatologist."

Verified patient review via Ratings.MD

"I waited for Kathryn longer than the time she spent with me... I could hear her and others outside the exam room engaged in detailed conversation about cute hair and nails."

Verified patient review via Ratings.MD

Synthesized 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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