Allergists and Immunologists Near Me in Wauwatosa, WI - Ascension
Allergy and Immunology • Wauwatosa, WI • 1 (Wauwatosa) locations
Clinic Type
Allergy and Immunology
Address
2500 N Mayfair Rd Ste 220, Wauwatosa, WI 53226 (Allergy and Immunology clinic on Mayfair Rd)
Phone
(414) 475-9101; (414) 226-4020; (414) 298-7105; (262) 657-9390; (262) 243-5000; (262) 786-4550
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
FAQs
What are the allergy and immunology clinic's hours?
Not provided in the page excerpt.
Is there a contact email for the allergy and immunology clinic?
Not provided in the page excerpt.
Do they accept insurance and what plans are accepted?
Not provided in the page excerpt.
What payment methods are accepted?
Not provided in the page excerpt.
Social Media
Photos








What Patients Say
Overall sentiment across review platforms: mixed
- Vitals.com for Ascension Wauwatosa providers: Mixed provider ratings (ranging from 1.3 to 4.8 stars based on individual physician) (Not explicitly aggregated for the entire facility, specific to individual providers)
Patients praise
- professional and inviting staff
- doctors who listen well and ask appropriate questions
- efficient and thorough care
- clean and welcoming facilities
Common complaints
- reports of rude behavior by reception staff over the phone
"The staff was very professional and inviting. Dr Maramattom asked all the right questions and is a good listener. She is professional and showed concern for my health."
— LocalityBiz user review for Ascension SE Wisconsin - Mayfair Road"Called the facility for an inquiry on wait time and was given a response very rudely by the receptionist. Due to this, I decided not to come to this location."
— LocalityBiz user review for Ascension SE Wisconsin - Mayfair RoadSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Dr. Abhilash R. Vaishnav, MD - Allergist-Immunologist in De Pere, WI — May 14, 2026
- Alissa Zeglin, MD | Froedtert & the Medical College of Wisconsin — Jan 8, 2026
- Dr. Jacob C. Laine, MD - Gastroenterologist in Wauwatosa, WI — May 14, 2026
- Janet L. Jasniewski, NP - Nurse Practitioner in Wauwatosa, WI — May 14, 2026
- Dr. Paul A. Lisi, DO - Osteopathic Manipulative Medicine Specialist in Watertown, WI — May 14, 2026
Information sourced from the clinic's website as of July 11, 2026.
More allergy and immunology clinics in Wauwatosa
Summary: Allergy, Asthma & Sinus Center S.C. is a private medical practice in southeastern Wisconsin specializing in allergy and immunology for both children and adults. Led by board-certified physicians Dr. Gary C. Steven (CEO/Owner) and Dr. Donald A. Bukstein, the center operates from multiple Greenfield-area locations and Mount Pleasant, WI, with a focus on comprehensive allergy, asthma, and sinus care. Services include allergy testing, nitric oxide testing, asthma education, exercise challenges, fiberoptic rhinoscopy, and scuba diving fitness evaluations. The center also participates in daily pollen counting and supports community programs in partnership with the American Lung Association–Wisconsin Chapter. Founded in 2003, it employs about 9 staff and has an annual revenue of approximately $31.9 million. If you’re seeking Dr. Gary C. Steven specifically in or near Wauwatosa, note that the listed offices are in Greenfield and Mount Pleasant, WI.
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