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MercyOne Waterloo OB/GYN Ste G4500

Obstetrics and GynecologyWaterloo, IA

★★★★★4.8/5375 reviews across 6 platforms

Ratings by platform

  • Birdeye: 3.6 out of 5 stars (based on 31 reviews) (31 reviews)
  • MercyOne (Dr. Heather Marthers): 4.9 out of 5 stars (58 ratings)
  • MercyOne (Dr. Assumpta Twekise): 4.9 out of 5 stars (46 ratings)
  • Ratings.MD (Melissa Clark): 4.9 out of 5 stars (92 ratings)
  • Ratings.MD (Jane Keller, ARNP): 4.9 out of 5 stars (112 ratings)
  • MercyOne (Dr. Rachel Reitan): 4.8 out of 5 stars (36 ratings)

What patients say

Patients praise

  • Compassionate and caring bedside manner
  • Providers are knowledgeable and professional
  • Effective at listening to patient concerns and explaining medical conditions or procedures clearly
  • Staff is friendly and helpful
  • Helps patients feel comfortable and at ease during appointments

Common complaints

  • Occasional concerns regarding communication during labor and delivery, such as lack of notice about procedures or lack of discussion regarding birth preferences like skin-to-skin contact

In patients' words

"She’s amazing and is so knowledgeable and friendly and helpful best doctor around period!!!"

Patient review of Dr. Heather Marthers

"Even during a terribly invasive procedure I felt secure and safe thanks to their compassion and professional care."

Patient review of Melissa Clark

"She put me at ease right away making the appointment more bearable."

Patient review of Jane Keller, ARNP

"He never made time feel rushed. Very knowledgeable and clearly outlined the available next treatment options."

Patient review of Dr. Ryan Beardsley

How these reviews were compiled

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

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