Live
Read now
Nephrology Associates of Northern Illinois and Indiana, Elgin

Nephrology Associates of Northern Illinois and Indiana

Nephrology • Elgin, IL • Locations in Crystal Lake locations

About

Nephrology Associates of Northern Illinois and Indiana (NANI) operates multiple locations in the Crystal Lake and Elgin, Illinois area, providing specialized kidney care through nephrologists, nurse practitioners, and office staff. The practice offers treatment for chronic kidney disease, kidney failure, kidney stones, and related conditions, with affiliated dialysis centers and hospital partnerships throughout the region.

Clinic Type

Nephrology

Address

Crystal Lake / Elgin area (Crystal Lake/Elgin)

Phone

847-531-5911, 815-301-1001

Email

OCRComplaint@hhs.gov

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

—

Team

  • Our Crystal Lake/Elgin Doctors — Departments/Doctors

Insurance & Payment

—

Languages Spoken

—

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Crystal Lake Dental Associates: 4.8/5 (1,283 reviews)
  • Mercyhealth Crystal Lake East: 4.9/5 (261 reviews)
  • Crystal Lake Oral & Maxillofacial Surgery: 4.7/5 (556 reviews)
  • Mohs Surgery & Dermatology Center (Elgin & Crystal Lake): 4.88/5 (2,995 reviews)
  • Northwestern Medicine Immediate Care (Crystal Lake/Elgin): 2.8/5 (88 reviews)

Patients praise

  • Highly skilled and knowledgeable medical professionals who explain treatment plans clearly
  • Professional, courteous, and efficient staff in many practices
  • Effective results and positive surgical outcomes for many patients
  • Good accessibility and ability to get appointments on short notice at some locations

Common complaints

  • Billing and insurance issues, including unexpected out-of-network charges and insurance denial due to paperwork errors
  • Long wait times and unprofessional front-office staff behavior (e.g., gossiping, ignoring calls)
  • Perceived poor bedside manner, lack of care, and dismissive attitudes from some medical providers
  • Concerns regarding over-diagnosis or unnecessary procedures

"I was billed for services that my insurance company denied because of the office not submitting the required paperwork and x rays."

— Crystal Lake Dental Associates review

"I have never felt so much like I was bothering someone. The whole ER staff acted like they just didn't care or want me there."

— Mercyhealth Crystal Lake East review

"Dr. Van Thiel is an excellent provider. He always takes the time to answer all my questions, no matter how many!"

— Dr. Geoffrey Van Thiel 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 . Own this clinic? Claim or correct this listing.

Comparing your options?

See other nephrology clinics in Elgin, or search the full directory by insurance, ratings, and more.

More Nephrology Clinics