For more information, call: 877-CENTEGRA

Erin C. Davis Delay, M.D.

(815) 338-6600

Internal Medicine


Internal Medicine

American Board of Internal Medicine

Internal Medicine

American Board of Internal Medicine


University of Illinois


Advocate Lutheran General Hospital

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Thank You Erin C. Davis Delay, M.D.

Linda Lambert says:

I am very happy with the care I am recieving. It had been a frustrating battle for me to find a medication that could control my hypertension. When I moved to McHenry,one of the doctors I work with recommended you. For that, I thank God and you for getting me through this hypertensive crisis. It was interfering with the quality of my life,but now that I can go about my workday without headaches and lightheadiness, I FEEL HUMAN AGAIN. SO THANK YOU, THANK YOU, THANK YOU! Linda Lambert

Fran Loveland says:

Dear Dr. Davis,
When we moved here from Seattle almost 3 yrs ago, I left my primary care physician of 20+ yrs. Given that I have multiple health problems and type 2 diabetes I was quite nervous about finding the right fit in a doctor. I saw you for the 1st time on the recommendation of one of your colleagues and he was SO right. You are the perfect fit. It is really great to find a doctor with a personality who is so good at what she does. Thank you for doing what you do the way you do it. Thank you.
Fran Loveland

Kate Nelson says:

Dear Dr. Davis,
Thank you for your continued help and support with my various medical issues. I value your candidness, humor and experience. I feel that in you I have a true advocate whose trustworthiness and skills are unparalelled.
Thank you from the bottom of my heart,
Kate Nelson

Karen Thoren says:

Dear Dr. Davis,
Thank you for always trying to figure out what the “heck” is going on with me. You have always been so pleasant and caring even when I knew you were as frustrated as much as I was. There are very few doctors that have the compassion and caring as you do. You are really one neat lady and thank you for remaining true to yourself.

Thank you,

Barbara Scherbaum (Basia) says:

Dear Dr. Davis,
I would like to thank you for the excellent care and all your support you’re giving me every time I need it. Your expertise and vast knowledge gives me confidence in your care.
You are an exceptional physician, thank you for being there for me.

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