Allergists and Immunologists Near Me in Appleton, WI - Ascension
Allergy and Immunology • Appleton, WI
Clinic Type
Allergy and Immunology
Address
436 E Longview Dr Ste B, Appleton, WI 54911
Phone
(920) 739-5213
careers@ascension.org
Opening Hours
Not published — contact the clinic to confirm hours.
Emergency Care
If you are experiencing a life-threatening emergency, call 911 or go directly to the ER.
Services Offered
Team
Insurance & Payment
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Languages Spoken
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Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- FindaTopDoc: 4 out of 5 stars (based on 9 reviews) (9 reviews)
- WebMD / MedicalNewsToday: 3.0 to 3.3 out of 5 stars (6 to 9 reviews)
- Healthgrades: No aggregate star rating provided (individual reviews cited) (16 reviews)
Patients praise
- Accurate diagnosis of conditions
- Effective treatment plans and medication recommendations
- Professional and helpful bedside manner in some instances
Common complaints
- Long wait times for appointments
- Poor communication regarding scheduling delays
- Unprofessional or confrontational behavior from staff and providers during disputes
- Billing issues and lack of responsiveness from administrative staff
"My experience... was extremely disappointing. My son and I arrived for a 10:00 a.m. appointment and waited 50 minutes past the scheduled time... I was not willing to wait indefinitely... he lashed out, spoke to me in an accusatory tone, and even hung up on me!"
— Healthgrades review of Dr. Steven Kagen"My daughter I were very impressed with Dr. Konz. Caring, through, and she diagnosed my daughter accurately and prescribed a med. that worked."
— MedicalNewsToday review of Dr. Karen KonzSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Maggie Van Abel, APNP, Nurse Practitioner - Appleton, WI | Sharecare — Jan 13, 2026
- Shae M. Wheeler - Physician Assistant in Appleton, WI — May 14, 2026
- Dr. Abhilash R. Vaishnav, MD - Allergist-Immunologist in De Pere, WI — May 14, 2026
- Julie A. Berger - Nurse Practitioner in Appleton, WI — May 14, 2026
- Kayla L. Schuh - Nurse Practitioner in Appleton, WI — May 14, 2026
Information sourced from the clinic's website as of July 11, 2026.
More allergy and immunology clinics in Appleton
Kagen Allergy Clinic is a Wisconsin-based allergy and asthma care provider with three offices, including Appleton and Fond du Lac. They offer in-office and video telehealth allergy/asthma testing, plus resources for patients. Key details: - Locations: Fond du Lac (headquarters), Appleton, plus another Wisconsin office (Oshkosh/Green Bay area not explicitly listed as separate sites in the provided details) - Services: In-office testing, video office visits, allergy and asthma management - Contact: Multiple local phone numbers; main presence at kagenallergy.com - Contact/summary points: Active clinic with a small team (4 employees), serves primarily the United States (majority in US), focused on allergy, asthma, and related care.
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