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Clinic Type

Pediatrics

Address

301 N Randall Rd, Lake In The Hills, IL 60156

Phone

(847) 658-6065

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

Team

  • Erin K O'Brien, MD — Physician
  • Jason C Tjaden, MD — Physician
  • Joanna E Betancourt, MD — Physician
  • Ryan A McCoy, MD — Physician
  • Preeti P Mirchandani, DO — Physician
  • Catherine F Fitzpatrick, MD — Physician
  • Robert A Boton, MD — Physician

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye (UW Health Belvidere Clinic): 4.8/5 (445)
  • Tebra (Eileen Solis, FNP-BC): 4.99/5 (196)
  • Vitals (Dr. Neal Kellenberger): 4.5/5 (11)
  • Healthgrades (Dr. Alvydas Baris): 4.2/5 (8)
  • Healthgrades (Dr. Clayton Malaker): 4.2/5 (6)
  • WebMD (Dr. Therese Lucietto-Sieradzki): 4.0/5 (48)

Patients praise

  • attentive and caring demeanor of providers
  • thorough explanations of treatment and care plans
  • friendly and professional office staff
  • efficient check-in and quick access to appointments (telehealth or in-person)
  • strong patient-provider rapport and feeling heard during visits

Common complaints

  • long wait times in office
  • scheduling and appointment management issues
  • perceived dismissiveness or lack of attentiveness in some instances

"Have had numerous primary care physicians over my 77 years and Dr. K is as fine as they come... He has never rushed thru any of my appointments. Answers all my questions."

Vitals (Dr. Neal Kellenberger)

"Dr. Eileen and her entire staff are amazing! They really make you feel like family. They go above and beyond for their patients."

Tebra (Eileen Solis, FNP-BC)

"You’ll be in her waiting room for at least an hour so don’t bother going while you’re at work."

Vitals (Dr. Therese Lucietto-Sieradzki)

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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