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About

Ascension Illinois is a nonprofit health care system based in Chicago, offering primary care and advanced specialty services near home, including cardiology. The organization operates hospitals and related medical services across Illinois, and employs about 41 staff. If you’re searching for non-surgical bariatric options in Oak Park, Ascension Illinois provides primary and specialty care that may include bariatric services through its network, with potential access to bariatricians via Ascension facilities in the region. For Oak Park-specific bariatric providers, check Ascension Oak Park’s local listings or contact Ascension Illinois directly to confirm non-surgical weight management programs and available bariatric specialists.

Clinic Type

Bariatric Surgery (multi-location group)

Address

331 W Surf St Ste 5100, Chicago, IL 60657; 800 Biesterfield Rd Ste 555 Elk Grove Village, IL 60007; 4885 Hoffman Blvd Ste 400 Hoffman Estates, IL 60192

Phone

(773) 665-9840; (847) 255-9697

Email

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

  • Bariatric Surgery
  • Bariatric Surgery (Non-Surgical Bariatricians Near Me)
  • General Surgery
  • Robotic and Minimally Invasive Surgery
  • Metabolic and Bariatric Surgery

Technology & Equipment

  • Robotic and Minimally Invasive Surgery
  • Metabolic and Bariatric Surgery
  • General Surgery

Team

  • Richard Y Zhu, MD? (as implied by listing) — Bariatric Surgeon
  • Paul J Guske, Jr, MD — Bariatric Surgeon
  • Jonathan W Wallace, MD — Bariatric Surgeon
  • Alexandra L Mooney, PA-C — Physician Assistant
  • Amb er Schwarzinger — Bariatric Surgeon
  • Elizabeth Kelly — Bariatric Surgeon
  • Constantine Godellas — Bariatric Surgeon
  • Gerard Abood — Bariatric Surgeon

Insurance & Payment

Languages Spoken

Awards & Accreditations

  • 4.7 (60)
  • 5 (87)
  • 4.8 (61)

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye (Google): 4.4 out of 5 stars (67 reviews (general medical center))
  • DoseCompare: 5 out of 5 stars (28 reviews (Bariatric Surgery department))

Patients praise

  • Supportive, knowledgeable, and caring medical staff (bariatric surgery team)
  • Informative and welcoming patient experience in bariatric programs
  • Effective weight loss outcomes reported by patients

Common complaints

  • Unprofessional staff behavior (specifically in the Oak Park, MI location)
  • Difficulties with administrative tasks such as referrals and medication management
  • Long wait times and communication issues with office staff

"Dr. Zue is amazing his service and knowledge is amazing you can tell he loves his career and treats all his patients with the upmost best respect... I’ve been with Dr. Zue for three years I’ve lost 133 pounds."

Ascension Medical Group Illinois Bariatric Surgery Patient Review

"Damita is SUPER UNPROFESSIONAL. She argued with me in front of all the patient... I literally heard her discussion MY THINGS with other people which is A HUGE HIPPA violation."

Ascension Medical Group Oak Park Medical Center Patient Review

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

Information sourced from the clinic's website as of July 11, 2026.

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