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Meet the Providers

The providers at Northwest Pulmonary and Sleep Medicine in Crystal Lake and South Barrington, Illinois welcome you. Specializing in the diagnosis, prevention, and treatment of pulmonary and sleep disorders, we offer personalized care with a focus on achieving optimum patient outcomes.

We invite you to get to know the dedicated providers who care for our patients in our office, in the hospital, and in nursing homes.

Our Physicians

Dennis Kellar, MD
Madhu Gundavaram, MD

Our Nurse Practitioners

Amanda Law, MS, CNP
Nonie Russell, DNP, CNP