Healthcare that puts you first

Different on purpose

Premise Health Wellness Center is not your typical doctor’s office. As your health and wellness ally, we take the time to get to know you and understand your unique needs. We build a trusting relationship with you, leading to better, quality care. With same-day or next-day appointments available, in-person or virtually, you can get the care you need when you need it. Skip the forms and long waits and spend more time with your provider.

Premise Health Wellness Center

4179 E Dundee Rd Suite A106
Northbrook, IL 60062

Phone: (847) 402-2300
Fax: (847) 789-9604

Hours of Operation:
Monday, Tuesday, Thursday, Friday, 8 a.m. – 5 p.m.
Wednesday, 9 a.m. – 6 p.m.
Closed 1 p.m. – 2 p.m. daily for lunch

Your health needs under one roof

As an Allstate employee, you have access to a comprehensive range of healthcare services, including primary care, women’s health, lab services and more.

Meet your care team.

Dr. Johann Serag, Medical Director

Dr. Johann Serag is the medical director at Premise Health Wellness Center Northbrook. He brings over a decade of experience in Family Medicine and has been board-certified since 2012. Dr. Serag believes in the saying “Wherever the art of medicine is loved, there is also love for humanity.” He enjoys partnering with members to manage their health wherever they are in their healthcare journey.


In his free time, Dr. Serag enjoys outdoor activities like hiking, biking, golf and pickleball. 

Carla Johns, Nurse Practitioner

Carla Johns has been a nurse practitioner for the past 16 years, including 11 years with Premise Health. Her clinical interests include helping patients meet their lifestyle goals and reducing medication burden. Carla practices with shared decision-making in mind, valuing patients’ input to their care.


In her free time, Carla spends time with her three children, enjoys attending CrossFit classes, and loves to travel with hopes of visiting all seven continents.

Photo of Kate Kroschel, FNP-C
Kate Hymes, Family Nurse Practitioner

Kate is a full-time family nurse practitioner at Premise Wellness Health Northbrook. Her approach to care is patient-centered, encouraging patients to take an active role in their health by empowering them to make evidence-based choices. Kate believes that the ability to make sustainable changes begins with education and options, tailored to an individual’s healthcare needs. She holds a national certification with the American Academy of Nurse Practitioners.

Kate enjoys camping, jogging and outside music events in her free time.