Janusz Mejer, M.D.

Practice: Castle Connolly Private Health Partners

Specialty: Family Medicine

Office locations: Arlington Heights, IL

Most recent review: 3 weeks ago Recent
5.0 out of 5
5 Ratings
2 Comments

Dr. Janusz Mejer, M.D., Board-Certified in Family & Functional Medicine and Obesity Medicine. He completed his medical training at the University of Medical Sciences in Poznan, Poland. After his residency at St. Mary and Elizabeth Medical Center in Chicago, he continued his dedication to Family Medicine by becoming the Assistant Director and establishing a community-focused private practice serving the Northwest suburbs and surrounding areas. Dr. Mejer is board-certified in both Family Medicine and Obesity Medicine.

5.0 out of 5
5 Ratings
2 Comments

Dr. Janusz Mejer, M.D., Board-Certified in Family & Functional Medicine and Obesity Medicine. He completed his medical training at the University of Medical Sciences in Poznan, Poland. After his residency at St. Mary and Elizabeth Medical Center in Chicago, he continued his dedication to Family Medicine by becoming the Assistant Director and establishing a community-focused private practice serving the Northwest suburbs and surrounding areas. Dr. Mejer is board-certified in both Family Medicine and Obesity Medicine.

The reviews listed below were collected independently of Castle Connolly Private Health Partners through rater8. Each review represents an authentic and verified patient experience.

Insanely intelligent Doctor always seeking the root of the problem instead of medicating the symptoms.

Rated 5 out of 5 stars
(3 weeks ago) Sep-2026

Amazing doctor

Rated 5 out of 5 stars
(4 months ago) Jun-2026