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Clinic Type

Endocrinology (multi-location group)

Address

800 E Woodfield Rd Ste 113, Schaumburg, IL 60173; 27750 W Il Route 22 Bldg 2-240, Barrington, IL 60010; 2101 S Arlington Heights Rd Ste 111, Arlington Heights, IL 60005; 1555 Barrington Rd Lowr Level, Hoffman Estates, IL 60169; 331 W Surf St Ste 801, Chicago, IL 60657; 27750 W Il Route 22 Bldg 2-240, Barrington, IL 60010

Phone

(847) 686-6866; (847) 842-4829; (224) 299-4222; (773) 665-6851

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

  • Endocrinology, Diabetes & Metabolism

Team

  • Emily M Borsellino — PA-C
  • Tina C Bansal — MD
  • Mario H Chan — MD
  • Paraskevi Sapountzi — MD
  • Faisal M Qureshi — MD
  • Daniel D So — MD
  • Zubair M Ilyas — MD
  • Angela A Ganan Popa — MD

Insurance & Payment

Call for appointment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • WebMD: 4.0/5 (18 ratings)
  • Healthgrades: 4.1/5 (22 reviews)
  • WebMD: 4.0/5 (25 ratings)
  • Vitals: 3.5/5 (22 ratings)

Patients praise

  • Strong medical expertise and knowledge of endocrine disorders
  • Compassionate and attentive bedside manner reported by some patients
  • Effective treatment plan adjustments leading to improved health outcomes (e.g., A1C levels)

Common complaints

  • Scheduling delays and long waiting lists for new patients
  • Difficulty with communication and office staff interactions
  • Concerns regarding thoroughness of care and follow-up for specific chronic conditions

"My first appointment she switch my medicine and my next A1C was 6.9! very happy with my experience with her and she very easy to talk to and I have never felt rushed through my time with her she listens and explains things to me in a way I understand."

Healthgrades review for Dr. Tiffany Karas

"I'm done with this practice. The last few years of going to Dr. Rahman, I have been extremely disappointed."

Yelp review for Associates in Endocrinology

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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