For more information, call: 877-CENTEGRA

Erin C. Davis Delay, MD

(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, MD

Carole Laubinger says:

Fifteen years ago, Dr. Davis was recommended to me by another nurse who was also a patient of hers. Soon my husband, my grown kids and spouses were seeeing Dr. Davis as our PCP. We have all been so happy with her care. We recently moved out of the area and I’m sure it is going to be hard to find a doctor I like and trust as much as I do Dr. Davis. Thank you Dr. Davis for being so caring, smart and fun! I will miss you.

Raymond Tierney says:

Dr. Davis and her team are always approachable, easy to reach via secure message and provides timely replies after my appointments. She is an excellent doctor!

Karen Thoren says:

Thank you for being the Amazing doctor you are. I could not have faced some of the problems I have had to face without your excellent care. Your diagnosis are spot on. You never tell me what I want to hear but what I need to hear. Your unpretentious being is wonderful is this overly pretentious world. Thank you

LeeAnn Depner says:

I am very happy with the care I am receiving. I was going to Dr. Mowery for 30 years plus and thought I would be lost. I was wrong. I am very happy with Dr. Davis. Thank you for being so very kind and understanding. My blood pressure is finally under control! Thanks.

Erika Sonstroem says:

Dear Dr. Davis,
I just want to thank you for the time you took to order Mom’s wheelchair for her. I saw it for the first time last week and have never seen one so nice and comfortable! As much as I hated to see Mom sit for hours in an uncomfortable wheelchair, I figured it would be worth it if she was more mobile and easier to take her around the nursing home. The cushion for her back almost makes it as comfortable as an easy chair with no worries about her having back pain. The staff calls it ‘the queen chair’ since it looks so nice and comfy. Wish I could add a picture to this post – I’ll have to bring one in the next time I come in. Thanks for taking such good care of Mom (and me) all of these years! As always, you make your patients feel special, even ones in HMOs, like me. Many thanks! Dolores Schmelzer

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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