Contact Us Easily schedule your appointment online.

To schedule an appointment at our center in Appleton, WI, please call (920) 886-2299 or complete the form below. We’re close to Neenah, Green Bay, Oshkosh and surrounding areas. We are looking forward to caring for you.

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We love hearing the stories of the patients who the Kaldas Center has helped. The Kaldas Center strives to educate the community about fertility, surgery, and pregnancy. By sharing your story you are helping to educate the community through your experience.

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Kaldas Center
701 S Nicolet Road
Appleton, WI 54914

Phone:  920-886-2299

Fax:  920-886-1039

Emergency or After Hours Contact

If you need to reach us after hours or in an emergency, call our regular number at (920) 886-2299.  You will speak to our after hours answering service who will immediately contact Dr. Kaldas.  If it is a serious emergency, please dial 9-1-1.


We accept most insurance plans.  To verify your coverage, call the 800 number on your insurance card or go to their website to see the providers covered on your plan.

For quick service...

When you call, please have your insurance card on hand so we can verify it over the phone.  It will also be helpful if you know your insurance benefits and who is covered.  Insurance can be confusing, but we’ll guide you through it and answer any questions you have.

Privacy Policy

We highly value your privacy and will not sell or distribute your information to anyone without your consent.


Please be aware that the great advice on our site is no substitute for an appointment.  For an accurate diagnosis and recommended treatment, we need to see you in-person.

Dr. Kaldas has been a vital part of my gynecological care since 2004.  Following the birth of my daughter, which was only after difficult infertility issues, Dr. Kaldas and his staff helped me in understanding my diagnosis of polycystic ovarian syndrome (PCOS), which contributed to other health concerns besides infertility.  Beyond this condition I was also laden with endometriosis that has surfaced throughout the years.  Dr. Kaldas performed ablation procedures as necessary and was always thoughtful, professional and informative before and after these events.  Recently, I underwent a laparoscopic hysterectomy, left sided salpingo-oophorectomy.  This latest procedure was unexpected and took me a few weeks to accept given my age, but Dr. Kaldas assured me that this was the best procedure given the progression of my endometriosis and the painful side effects I was enduring.  He was very confident that the outcome would eliminate all of my pain, which had become unbearable at times, as well as potentially give me an opportunity for even better health.  It was an emotional time for me, but his ever available demeanor during my questioning at the time of any appointment or follow up calls as well as his staff’s were immeasurable to putting my mind at ease with this and every procedure over the years.  I found that he was not only right in this recent undertaking, but I truly feel the most healthy I have in years. He is without a doubt a doctor of compassion, kindness and wealth of infertility knowledge, who I would gladly refer to other women encountering the same health concerns.  I consider myself blessed that he is my doctor.

Kelly / Appleton, WI