Skip to navigation Skip to Content
Join a world-class health system. Find jobs

Professional Summary down arrow

  • Medical School
    Rush University Medical Center - Rush Medical College Chicago, IL, United States, M.D. 1988

    Internship
    University of South Alabama - College of Medicine Health System Mobile, AL, United States, Internal Medicine 1989

    Residency
    University of South Alabama - College of Medicine Health System Mobile, AL, United States, Internal Medicine 1991

    Fellowship
    University of North Carolina - School of Medicine Chapel Hill, NC, United States, Oncology/Hematology 1995

  • Professional Societies
    American Association for Cancer Research American Society of Clinical Oncology American Society of Hematology Wisconsin Medical Society

    Board Certifications
    Hematology: 1996, recertified 2006 Internal Medicine: 1991, recertified 2005 Medical Oncology: 1995, recertified 2005

    State Licenses
    Wisconsin

Patient Ratings down arrow

4.9
out of 5 (96 ratings, 29 comments)
4.9
Provider explanations of my problem
4.9
Provider concern for my questions
4.8
Provider's efforts to include me in treatment decisions
4.8
Provider's discussion of proposed treatment
4.9
My likelihood of recommending this provider

Patient Comments down arrow

Comments are also gathered from the Press Ganey patient satisfaction survey and displayed in their entirety with the exception of any language that may be considered slander, libel or contain private health information, which will be removed prior to publishing.
Comments are from Press Ganey surveys. Slander, libel and private health information are removed.
Sort by:
April 5, 2021
All very good.
June 28, 2021
Always excellent to outstanding, both are extremely compassionate - THANK YOU -
October 8, 2021
Dr. Delmastro is so great! I love his compassion and attention to details, my emotions, and concerns.
November 6, 2021
Better than very good exceptional service. Dr. Delmastro spent a 45 minutes with us explaining every thing.
November 10, 2021
Excellent at explaining. Thorough in covering questions/concerns. Very attentive listener. Patient.
November 18, 2021
I've recommended this care to someone else. I'm very happy with all the above.
January 6, 2022
Dr. Delmastro is a very compassionate and caring dr. He listens & explains very well on any questions I have had.
January 20, 2022
Compassionate & caring -
January 21, 2022
Dr. Delmastro is the best! He is so passionate and caring.
January 31, 2022
Very "patient oriented" knowledgeable, caring doctor gets your opinion a lot.
February 7, 2022
N/A - No additional treatments needed at this time. Just a _____ f/u.
February 15, 2022
Will recommend, did not rush & explained thoroughly.
March 29, 2022
Lots of great care and concern though the process.
May 9, 2022
He is very good
May 24, 2022
Dr. Dean Delmastro is one of the best doctors. He did a comprehensive exam of me. He summarized my lab results and CT scan in a way that made sense to me. Dr. Delmastro has always been fast at solving my health problems.
May 31, 2022
Dr. Delmastro is awesome!
July 1, 2022
Dr. Delmastro was so kind. He explained everything so I could understand. Dr. spent time with me; which I really appreciated.
July 6, 2022
He very well knowledgeable in his area.
July 6, 2022
Dr. Hamblin is the best! She is so very competent and caring.
July 7, 2022
Excellent.
July 11, 2022
I JUST LOVE Dr. Dean Delmastro! He's SO CARING and NICE, explains everything to me. I have referred him to friends & relatives.
July 15, 2022
The best dr. ever.
August 16, 2022
Have recommended to others. Dr. Delmastro takes all the time you need with him & explains everything very thoroughly.
August 19, 2022
Dr. Delmastro is the reason I still treat with the Marshfield Clinic.
August 23, 2022
I am always treated with respect & as a person would like to be treated.
August 31, 2022
The providers exam was good, I am healing good.
October 7, 2022
Dr. Delmastro and his staff are all very caring. I have confidence in them. I am in stable remission with my [condition] for almost 5 yrs. & I thank Dr. Delmastro for that.
May 10, 2022
Dr. Delmastro is a wonderful mix of providing information & explaining things, and attentiveness, listening, empathy.
September 27, 2022
My family knew how I get treated when I return home.
September 27, 2022
My family knew how I get treated when I return home.
May 10, 2022
Dr. Delmastro is a wonderful mix of providing information & explaining things, and attentiveness, listening, empathy.
April 5, 2021
All very good.
June 28, 2021
Always excellent to outstanding, both are extremely compassionate - THANK YOU -
October 8, 2021
Dr. Delmastro is so great! I love his compassion and attention to details, my emotions, and concerns.
November 6, 2021
Better than very good exceptional service. Dr. Delmastro spent a 45 minutes with us explaining every thing.
November 10, 2021
Excellent at explaining. Thorough in covering questions/concerns. Very attentive listener. Patient.
November 18, 2021
I've recommended this care to someone else. I'm very happy with all the above.
January 6, 2022
Dr. Delmastro is a very compassionate and caring dr. He listens & explains very well on any questions I have had.
January 20, 2022
Compassionate & caring -
January 21, 2022
Dr. Delmastro is the best! He is so passionate and caring.
January 31, 2022
Very "patient oriented" knowledgeable, caring doctor gets your opinion a lot.
February 7, 2022
N/A - No additional treatments needed at this time. Just a _____ f/u.
February 15, 2022
Will recommend, did not rush & explained thoroughly.
March 29, 2022
Lots of great care and concern though the process.
May 9, 2022
He is very good
May 24, 2022
Dr. Dean Delmastro is one of the best doctors. He did a comprehensive exam of me. He summarized my lab results and CT scan in a way that made sense to me. Dr. Delmastro has always been fast at solving my health problems.
May 31, 2022
Dr. Delmastro is awesome!
July 1, 2022
Dr. Delmastro was so kind. He explained everything so I could understand. Dr. spent time with me; which I really appreciated.
July 6, 2022
He very well knowledgeable in his area.
July 6, 2022
Dr. Hamblin is the best! She is so very competent and caring.
July 7, 2022
Excellent.
July 11, 2022
I JUST LOVE Dr. Dean Delmastro! He's SO CARING and NICE, explains everything to me. I have referred him to friends & relatives.
July 15, 2022
The best dr. ever.
August 16, 2022
Have recommended to others. Dr. Delmastro takes all the time you need with him & explains everything very thoroughly.
August 19, 2022
Dr. Delmastro is the reason I still treat with the Marshfield Clinic.
August 23, 2022
I am always treated with respect & as a person would like to be treated.
August 31, 2022
The providers exam was good, I am healing good.
October 7, 2022
Dr. Delmastro and his staff are all very caring. I have confidence in them. I am in stable remission with my [condition] for almost 5 yrs. & I thank Dr. Delmastro for that.
April 5, 2021
All very good.
June 28, 2021
Always excellent to outstanding, both are extremely compassionate - THANK YOU -
October 8, 2021
Dr. Delmastro is so great! I love his compassion and attention to details, my emotions, and concerns.
November 6, 2021
Better than very good exceptional service. Dr. Delmastro spent a 45 minutes with us explaining every thing.
November 10, 2021
Excellent at explaining. Thorough in covering questions/concerns. Very attentive listener. Patient.
November 18, 2021
I've recommended this care to someone else. I'm very happy with all the above.
January 6, 2022
Dr. Delmastro is a very compassionate and caring dr. He listens & explains very well on any questions I have had.
January 20, 2022
Compassionate & caring -
January 21, 2022
Dr. Delmastro is the best! He is so passionate and caring.
January 31, 2022
Very "patient oriented" knowledgeable, caring doctor gets your opinion a lot.
February 7, 2022
N/A - No additional treatments needed at this time. Just a _____ f/u.
February 15, 2022
Will recommend, did not rush & explained thoroughly.
March 29, 2022
Lots of great care and concern though the process.
May 9, 2022
He is very good
May 10, 2022
Dr. Delmastro is a wonderful mix of providing information & explaining things, and attentiveness, listening, empathy.
May 24, 2022
Dr. Dean Delmastro is one of the best doctors. He did a comprehensive exam of me. He summarized my lab results and CT scan in a way that made sense to me. Dr. Delmastro has always been fast at solving my health problems.
May 31, 2022
Dr. Delmastro is awesome!
July 1, 2022
Dr. Delmastro was so kind. He explained everything so I could understand. Dr. spent time with me; which I really appreciated.
July 6, 2022
He very well knowledgeable in his area.
July 6, 2022
Dr. Hamblin is the best! She is so very competent and caring.
July 7, 2022
Excellent.
July 11, 2022
I JUST LOVE Dr. Dean Delmastro! He's SO CARING and NICE, explains everything to me. I have referred him to friends & relatives.
July 15, 2022
The best dr. ever.
August 16, 2022
Have recommended to others. Dr. Delmastro takes all the time you need with him & explains everything very thoroughly.
August 19, 2022
Dr. Delmastro is the reason I still treat with the Marshfield Clinic.
August 23, 2022
I am always treated with respect & as a person would like to be treated.
August 31, 2022
The providers exam was good, I am healing good.
September 27, 2022
My family knew how I get treated when I return home.
October 7, 2022
Dr. Delmastro and his staff are all very caring. I have confidence in them. I am in stable remission with my [condition] for almost 5 yrs. & I thank Dr. Delmastro for that.
October 7, 2022
Dr. Delmastro and his staff are all very caring. I have confidence in them. I am in stable remission with my [condition] for almost 5 yrs. & I thank Dr. Delmastro for that.
September 27, 2022
My family knew how I get treated when I return home.
August 31, 2022
The providers exam was good, I am healing good.
August 23, 2022
I am always treated with respect & as a person would like to be treated.
August 19, 2022
Dr. Delmastro is the reason I still treat with the Marshfield Clinic.
August 16, 2022
Have recommended to others. Dr. Delmastro takes all the time you need with him & explains everything very thoroughly.
July 15, 2022
The best dr. ever.
July 11, 2022
I JUST LOVE Dr. Dean Delmastro! He's SO CARING and NICE, explains everything to me. I have referred him to friends & relatives.
July 7, 2022
Excellent.
July 6, 2022
Dr. Hamblin is the best! She is so very competent and caring.
July 6, 2022
He very well knowledgeable in his area.
July 1, 2022
Dr. Delmastro was so kind. He explained everything so I could understand. Dr. spent time with me; which I really appreciated.
May 31, 2022
Dr. Delmastro is awesome!
May 24, 2022
Dr. Dean Delmastro is one of the best doctors. He did a comprehensive exam of me. He summarized my lab results and CT scan in a way that made sense to me. Dr. Delmastro has always been fast at solving my health problems.
May 10, 2022
Dr. Delmastro is a wonderful mix of providing information & explaining things, and attentiveness, listening, empathy.
May 9, 2022
He is very good
March 29, 2022
Lots of great care and concern though the process.
February 15, 2022
Will recommend, did not rush & explained thoroughly.
February 7, 2022
N/A - No additional treatments needed at this time. Just a _____ f/u.
January 31, 2022
Very "patient oriented" knowledgeable, caring doctor gets your opinion a lot.
January 21, 2022
Dr. Delmastro is the best! He is so passionate and caring.
January 20, 2022
Compassionate & caring -
January 6, 2022
Dr. Delmastro is a very compassionate and caring dr. He listens & explains very well on any questions I have had.
November 18, 2021
I've recommended this care to someone else. I'm very happy with all the above.
November 10, 2021
Excellent at explaining. Thorough in covering questions/concerns. Very attentive listener. Patient.
November 6, 2021
Better than very good exceptional service. Dr. Delmastro spent a 45 minutes with us explaining every thing.
October 8, 2021
Dr. Delmastro is so great! I love his compassion and attention to details, my emotions, and concerns.
June 28, 2021
Always excellent to outstanding, both are extremely compassionate - THANK YOU -
April 5, 2021
All very good.

Honor a Shining Star

Shining Star Logo

Honor a provider or care team member who makes a difference in your care with a gift through the Shining Star program.