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Mary Lee Villanueva, MD - Oncologist/Hematologist - Avera Health logo

Mary Lee Villanueva, MD - Oncologist/Hematologist - Avera Health

Oncology and Hematology • Yankton, SD

★★★★★5.0/547 reviews across 3 platforms

Ratings by platform

  • US News Doctors: 5 out of 5 (20)
  • Healthgrades: 5 out of 5 (13)
  • WebMD: 5 out of 5 (14 ratings, 11 reviews)

What patients say

Patients praise

  • Compassionate and sincere demeanor
  • Thorough communication and takes time to answer questions
  • Highly recommended by patients
  • Professional and friendly office staff
  • Demonstrates high level of expertise and keeps up with latest treatments

Common complaints

  • No specific complaints or negative experiences identified in available public patient reviews.

In patients' words

"Dr Villanueva is very compassionate and sincere. She truly cares about her patients. I have been extremely happy with my cancer journey and having her as my oncologist. She takes the time at every visit and always answers any question I have not making me feel I should not have asked. Hands down a 10 out of 10!"

— Healthgrades

"We cannot say enough good things about Dr. Villanueva. She has been treating my husband for seven years and she been absolutely wonderful with both of us. She is professional and has treated us with the utmost respect and kindness."

— WebMD

How these reviews were compiled

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

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