Skip to main content

Phelps Health Delbert Day Cancer Institute

1060 West 10th Street
Rolla, MO 65401

Appointment: (855) 406-3324

Office: (855) 406-3324

Fax: (573) 458-8363 and (573) 458-8445

Learn more about the Delbert Day Cancer Institute.

How did we do? Leave Phelps Health Delbert Day Cancer Institute a review.

Referral Form

Hours

Office Hours

Radiation Oncology Unit: 
Monday – Friday 7:30 AM - 4:00 PM

 

Medical Oncology Unit: 
Monday – Friday 8:00 AM - 4:30 PM

 

General Surgery Suite: 
Monday – Friday 8:00 AM - 5:00 PM

Ratings and Reviews

What our patients are saying (Verified reviews from real patients)

Jul 29, 2026
Everyone was professional and friendly. Dr Maynard is the best. I followed him from Mercy. Treat him well. He is the nugget of gold in a sea of physicians.
Jul 27, 2026
Everyone was friendly and worked efficiently. Great staff and wonderful provider
Jul 27, 2026
Excellent personal care.
Jul 27, 2026
Everything was the best. Dr Maynard has been my doctor for many years. He saved my life by discovering my cancer early. He is a very caring physician.
Jul 27, 2026
Dr. Maynard and staff are fantastic!! I totally enjoy this facility.
Jul 27, 2026
This facility has the most modern and sophisticated equipment one could hope for. I am impressed with the professionalism of the staff and the efficiency with which the process is handled. My privacy is carefully protected and the staff is most respectful of that fact. This is very difficult and unexpected malady with which I've had to come to terms. The staff have greatly eased my anxiety and I believe that I am being treated in the best manner possible so as to recover. The radiation staff is very professional and knowledgable. The doctors are fantastic as well, especially Dr Spencer. I believe that i am receiving the best care possible of what any institution could offer. Thank you.
Jul 23, 2026
I could have used a little more time with the provider since I have multiple serious issues that need to be addressed by appropriate testing/procedures.
Jul 23, 2026
Dr. Maynard is a kind, compassionate, and intelligent professional. I am a health care provider myself and would trust no one other than him completely and fully with the health decisions that impact my life.
Jul 23, 2026
Dr. Spencer treated me for laryngeal cancer before about six or seven years ago and I was satisfied then and I'm satisfied that he can do it, treat me again just as well.
Jul 23, 2026
I don't know if they could do anything more
Jul 23, 2026
Dr Maynard is a awesome doctor
Jul 23, 2026
Great
Jul 21, 2026
Unreal awesome visit to Physical Therapy. Didn't try to hurt me by going to far with exercises. Could not of been better.
Jul 21, 2026
Dr Maynard is great . Takes the time to address any concerns I might have.
Jul 21, 2026
Very polite and sweet .They all helped me my concerns. Love them all.
Jul 21, 2026
My experience went well and smooth, at this time I nothing to report negatively, the doctor and nurse were wonderful. Thank You for making my appointment great.
Jul 20, 2026
Very friendly staff
Jul 20, 2026
Dr. Recommended an EEG. We were told that we could get one done that day only if there was time. In the past an order was put in and we were registered and have been in an area where we would be called or a machine was brought into the doctor's office and it was done right there. We would then be called with the results or could see it on My Chart.
Jul 20, 2026
Dr Maynard is a very good person and doctor I won't go to anyone else
Jul 20, 2026
Dr Maynard did a thorough examination of my knee and explained everything in a clear way and gave me all options and possibilities. I felt completely comfortable with him and his nurse and felt like I got excellent treatment.
Jul 16, 2026
Everyone was great
Jul 16, 2026
Every person was very kind, professional and interested in me as a person
Jul 15, 2026
Great group of people. Great people just Stay the same.
Jul 15, 2026
A wasted trip in my opinion. Could have waited until my condition was fully evaluated and a plan for treatment could be put in place.
Jul 14, 2026
Dr. Maynard is the very BEST
Jul 13, 2026
Hired Greg Maynard he's been my dr for years now and I followed him from mercy to phelps health
Jul 9, 2026
It is very difficult to find a physician who not only treats a patient but cares about a patient. It's difficult to find an exceptional doctor as well as an exceptional man. Dr. Gregory Maynard is both. There are not enough kind words that I can speak to describe the comfort that physician cares for me.
Jul 8, 2026
Dr Maynard has been my doctor for years and couldn't ask for anyone better. He is the best!
Jul 8, 2026
The facility is clean, smells good and is professionally operated.
Jul 7, 2026
Everyone was very nice and explained things to me and made me feel comfortable
Jul 7, 2026
I have been treated like i matter to people who care, thank you
Jul 6, 2026
Every thing was great.
Jun 29, 2026
Dr. Gautam was empathetic and genuinely concerned about my condition. He took quick action to get me to a super-specialist in St. Louis. My biopsy was obtained quickly. He called me to followup after each step. I thank God for Dr. Gautam being in Rolla.
Jun 25, 2026
In the eight years that I have been seen at Delbert Day Cancer Institute, I have experienced the highest level of professionalism by everyone in every area that I have visited. Every opportunity that I am given to talk about DDCI, I always tell people that the folks there are truly treasures in our midst.
Jun 25, 2026
Everyone was very nice and polite very professional. I would recommend this place to anyone.
Jun 24, 2026
Jinna and her nurse are both very kind. Jinna is incredibly knowledgeable and remembers your health challenges from visit to visit. Like everyone else-I do love her! Time for a raise!!
Jun 23, 2026
Jinna is wonderful.
Jun 22, 2026
Throughout my radiation experience and now with my first post-radiation appointment, I felt that I received excellent care from the entire staff. People not only were trained in their area of expertise, but they also seemed genuinely to care about me and my experience. I felt that everyone did whatever they could to make the cancer diagnosis and treatment less formidable. Thank you.
Jun 19, 2026
Wonderful doctor
Jun 19, 2026
I recommend your facility to everyone!
Jun 15, 2026
Everyone preformed their jobs well and treated me with great care and respect.
Jun 15, 2026
The whole experience was just fine. I don't know how to improve it. I didn't see anything that needed to be improved.
Jun 15, 2026
The radiation therapist a the best!
Jun 12, 2026
The whole team was amazing. They hate going to doctors, but this team is great!!
Jun 8, 2026
I was impressed by the doctor used input from multiple sources to develop and confirm his conclusions. We were also comforted by the understanding and clarification provided by his nurse to our questions with regard to permitting or witholding specific medications prior to the scheduled procedure.
Jun 8, 2026
Great people and service!
Jun 8, 2026
There is no improvement needed.....everyone was Great!!!! I would highly recommend to anyone.....everything was explained well and everyone was so very nice ..... I'm so glad that I chose going here than anywhere else...I thank everyone from the bottom of my heart!!!!
Jun 3, 2026
You ALWAYS please my wife & I.....THANK YOU??
May 29, 2026
The facility was excellent to me and I enjoyed their personalities. They were super. I recommend anybody that has a problem with cancer. Valley Institute is where you want to go and God bless.
May 22, 2026
No complaints. Everyone was polite, friendly and professional.
May 21, 2026
We didnt know exactly where to go. My fault really I should have found that out before the appt. When we got there and asked they sent us to one place it was wrong that stop sent us to another place it was wrong they sent us to yet another wrong place. Third stop sent us to the correct office. After all that the visit was good. Really liked the doctor and his staff.
May 19, 2026
Everything was great. The waiting room needs a facelift. Brighter colored walls and new carpeting. No other complaints. Dreary waiting room is all. All the staff was great.
May 15, 2026
We're very lucky to have Phelps Health around here. It's a clean facility. You can get just about anything you need done there. The only problem is the parking. You need to do something about the parking. If you're handicapped, you walk with a walker, and you've got to park a long ways off, it's not good. Thank you.
May 14, 2026
Everyone was very professional
May 13, 2026
I had a very pleasant experience with Dr. Spencer and his staff. I felt well cared for and I felt that they cared about me and my spouse who was with me at the time. I'm very glad in my choice of doctors.
May 13, 2026
Everyone,from the person who checked me in, the 1 who took my vitals & asked me several questions & then the Nurse Practictioner were very professional & made me feel very comfortable!
May 12, 2026
Jinna Lisenbe was so great. Speaks in a way I can understand, not in doctor speak. Everyone else was great too. Wish I could remember all of there names.
May 11, 2026
Acknowledged me in everything
May 7, 2026
Was. great experience !
May 6, 2026
My experience from start to finish was exceptional. I can't think of a single improvement that needs to be made anywhere. I appreciate Phelps Health and I'm thankful to be a patient.
May 6, 2026
We felt very comfortable with the pulmonologist. He explained everything to us in a way we could medically understand.
May 6, 2026
The compassionate and caring staff and doctor were amazing!
May 4, 2026
Very professional and caring. Explained everything well and took the time to listen about the problems I was having. Nothing to improve on, would highly recommend her and the nursing staff.
May 4, 2026
The staff and doctors treated me with respect and thoroughly explained any questions I had.
May 1, 2026
My visit with Jinna was amazing . She as so caring and supportive every time I have an appointment with her.
Apr 30, 2026
Everything was great
Apr 29, 2026
Very friendly. Makes you feel relieved
Apr 28, 2026
very good listener and doctor ananlyst, compassionate, free and open questions and answers
Apr 27, 2026
Always do everything right! ?
Apr 23, 2026
I love the staff and providers at PhelpsHealth and feel that everyone genuinely cares for me. I feel that I'm in control of my health care with expert guidance.
Apr 22, 2026
Very accommodating. I was late for appointment and they still worked me in. Staff friendly and caring
Apr 16, 2026
Always an excellent visit
Apr 13, 2026
I don't know yet because you haven't figured out my problem. I've only seen you once asked again after I've seen you a couple times and then I'll tell you what I think about you
Apr 10, 2026
Good visit to understand roles of radiation staff and chemo staff goig forward
Apr 9, 2026
I actually enjoyed my visit. My provider spoke to me as an individual, not as a number. He definitely helped me to understand in layman terms.
Apr 8, 2026
Always friendly employees. Wait time is not too bad. Very clean areas.
Apr 7, 2026
It took an hour and a half to have blood drawn at the lab but it was busy.
Apr 6, 2026
Everyone is always nice and thoughtful
Apr 2, 2026
I appreciated how friendly and helpful everyone was, from the reception staff to the volunteers to the nurses and doctor. It seems that everyone was committed to making the absolute best of a patient's cancer diagnosis, to make everything as painless as possible. When we arrived, there was a 3-piece band playing. My only regret was not having time to sit and listen to them. Before we left, a volunteer offered us food that was left over from a meeting that morning. Thanks to everyone for their attentiveness to the needs of the patient, me, in this case. But I am convinced you do that for everybody who comes through the door.
Apr 2, 2026
Great Dr. Will tell friends about him, if they need to see a lung Dr. He listen to me when I asked questions. Didnt talk around or over me. Didnt brush off my questions. Didnt rush me out of the room, took his time.
Apr 2, 2026
They understood my husbands issues and made us feel that they would get to the bottom of his health condition and treat it accordingly Thank you all
Apr 1, 2026
I've used Mercy for a very long time and since moving down this way and getting my health back on track, everyone I've met associated with Phelp's Health has been above all my expectations.
Apr 1, 2026
I was pleased in all areas provided for my care and visit! Excellent!
Mar 31, 2026
I've always had a great experience at Delbert Day and since I've been going there and I would definitely recommend it to anyone and I have several times. So I appreciate you guys.
Mar 30, 2026
Each time that I have medical appointments at Phelps Health and especially at the cancer center, I am totally satisfied with the quality of care that I receive, and I am very impressed with the staff, who I interact with in these appointments! I consistently pass this information onto anyone who I have a conversation with about Phelps Health and its care, etc.
Mar 26, 2026
Everything was very was understandable
Mar 25, 2026
I was sent there by the VA under the community care program I live near Rolla an asked to come to your Facility.very Satisfied. With your Services.
Mar 24, 2026
Everyone was really nice
Mar 24, 2026
Healthcare at the Rolla Institute, they're excellent personnel there. Kind, clean environment, etc., etc. I'd recommend your facility to anybody that has any problem with cancer. That's true as a fact. Thank you.
Mar 23, 2026
Everyone was very friendly and concerned about me
Mar 23, 2026
Keep machine running, appt cancelled due to not working.
Mar 19, 2026
Well, the doctor was a little bit arrogant. Explaining things, he did good. It's just, I don't know, he had a, he's either in a bad mood or had an attitude.
Mar 19, 2026
You done a wonderful job
Mar 18, 2026
The Dr. took his time and reviewed my past history, my current situation as well as the CT scans very thoroughly and explained everything very good.
Mar 17, 2026
always takes time to listen and discuss my concerns
Mar 12, 2026
Great facility and great experience, everyone was top notch!!!!
Mar 9, 2026
This facility seems to really care about my health. I appreciate it.
Mar 9, 2026
Excellent care, highly recommend this facility
Mar 9, 2026
Everyone is polite and do their jobs well
Mar 5, 2026
Very courteous and took time to let us ask questions. Dr was very personable. Made the visit very nice. .