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Kagen Allergy Clinics | Appleton, Oshkosh, Green Bay, Fond du Lac ... logo

Kagen Allergy Clinics | Appleton, Oshkosh, Green Bay, Fond du Lac ...

Allergy and ImmunologyAppleton, WI

★★★☆☆3.2/530 reviews across 3 platforms

Ratings by platform

  • Vitals: 3.4 out of 5 (8 ratings)
  • Healthgrades: 3.1 out of 5 (16 ratings)
  • Yelp: 3.0 out of 5 (6 reviews)

What patients say

Patients praise

  • Reputation for clinical intelligence or expertise
  • Helpful with pediatric patients
  • Accurate diagnosis capabilities

Common complaints

  • Long wait times and office scheduling issues
  • Billing and insurance transparency concerns
  • Perceived lack of professionalism or poor communication from staff/doctor

In patients' words

"My experience with Dr. Kagan was extremely disappointing. My son and I arrived for a 10:00 a.m. appointment and waited 50 minutes past the scheduled time without being seen. ... Instead, he questioned and criticized me for leaving."

Vitals / Healthgrades patient review

"They really want that payment locked down. Be prepared to sign over everything they need to sue you . It was incredibly hard and insulting trying to get any cost possibilities out of them."

Yelp patient review

"Dr. Kagen is one of the smartest doctors around. He was wonderful with my children and made an accurate diagnosis."

Yelp patient review

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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