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Internal Medicine in Sioux City, IA

Internal MedicineSioux City, IA

★★★☆☆3.2/583 reviews across 3 platforms

Ratings by platform

  • WebMD (Dr. Steven Joyce): 4.5/5 (23 ratings)
  • Vitals (Dr. Kevin Preston): 2.1/5 (46 ratings)
  • Vitals (Dr. Liem Oei): 4.9/5 (14 ratings)

What patients say

Patients praise

  • Doctors described as thorough, professional, and invested in long-term patient relationships
  • High-quality care for chronic or complex conditions when patients are able to access it
  • Some patients report highly personalized, attentive care and effective preventive health programs

Common complaints

  • Long wait times and slow service at clinics and hospitals
  • Reports of rude, dismissive, or unprofessional conduct by front-desk and clinical staff
  • Difficulties with communication, including unanswered calls and challenges retrieving medical records
  • Issues with billing, insurance coverage, and prescription refill processes

In patients' words

"We have been patients of Dr. Carlson and the staff at Siouxland Adult Medicine for several years. The care we have received over this time has been extraordinary."

Siouxland Adult Medicine Patient Review

"we sat in the lobby for 40 minutes before we even went into a room. that place is ridiculously slow... no one seems to know what they’re doing there."

MercyOne Singing Hills Family Medicine Review

"The nurse practitioner came in and diminished all of my symptoms... I should not have to spend $40 in copays just to be looked at for two minutes tops."

Family Healthcare of Siouxland - Northside Clinic Review

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7][8].

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