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Clinic Type

Internal Medicine

Address

801 E Sioux Ave, Floor 3, Pierre, SD 57501

Phone

+1-605-224-5901

Email

Opening Hours

Mon-Fri 8 AM – 5 PM

Services Offered

  • Internal Medicine Services
  • Yearly Checkups
  • Disease Management
  • Preventive Screenings
  • Immunizations
  • Geriatric Care
  • Mammography
  • Radiology & Imaging
  • On-Campus Pharmacy
  • Meet Our Team

Team

  • Robert L. Allison — MACP, MD
  • Stacy S. Cwach — PA-C
  • Allison J. Johnson — CNP
  • Alyssa Etzkorn — PA-C
  • Andras Szabo — MD
  • Darrell W. Plumage — MD

Insurance & Payment

Languages Spoken

FAQs

Meet Our Team

Individual provider listings with contact numbers are included (e.g., team members with phone numbers like 605-945-5277, 605-224-2708).

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Avera Provider Profile: 4.9/5 (provider-level) (147 ratings)
  • Healthgrades (Avera St. Mary's Hospital): 66% (Patient recommendation)

Patients praise

  • High patient ratings for specific providers, such as Dr. Darrell Plumage
  • Efficient and professional experiences in urgent care settings
  • Positive feedback for medical competency and clear communication from doctors

Common complaints

  • Dissatisfaction with pain management protocols
  • Billing issues and lack of centralized billing coordination
  • Reports of rude or dismissive staff in certain departments
  • Perceived lack of compassion in behavioral health services

"Dr Plumage is the best. 100% trust/ value him. In anything serious, I want his guidance."

Avera Provider Profile (Dr. Darrell Plumage)

"Horrible pain management treatment. They won't give strong enough pain medication... Your doctors are terrible."

Online Business Review Site

"Behind in technoogy causing major hassles for the customer and the office staff treats you like garbage."

Online Business Review Site

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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