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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

    NPI
    1699875922

Patient Ratings down arrow

4.8
out of 5 (182 ratings, 22 comments)
4.8
Provider explanations of my problem
4.8
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:
February 22, 2024
Fine
February 26, 2024
Excellent - Thorough, personable & approachable. Never feel rushed.
March 4, 2024
Dr. Delmastro is the Saint of Marshfield Clinic!
March 4, 2024
Absolute excellence!!
March 4, 2024
Doctor Delmastro is a great doctor. I am comfortable around him. He is friendly, supportive and listener.
March 4, 2024
Very good doctor. Lots of explanations and information. Took time to explain everything. Very thorough.
March 4, 2024
He's the best trust him; always happy to see him.
April 15, 2024
When the provider was leaving I remembered additional information. He sat down again to listen to what I had to say. He then used this information & rechecked tests in my chart.
May 2, 2024
Very receptive, open, honest.
June 10, 2024
Excellent.
August 15, 2024
Very experienced and careful.
August 19, 2024
Dr. Delmastro is the best! He's the reason I stayed w/Mfld. Clinic you are lucky to have such a caring & knowledgeable MD.
September 4, 2024
Dr. Delmastro was very easy to talk to about things that I was experiencing & what we could do to make things easier on me. He is a great listener too.
September 16, 2024
Really like him. He is very understanding and also seems very concerned.
September 16, 2024
The Doctor and PA always listen to my questions and answer with information I can understand .
December 16, 2024
Dr. DelMastro is very good at going over options in treatment and includes the patient in the discussion. Good at listening.
January 6, 2025
Dr always shows concern for me
January 9, 2025
wonderful doctor ...
January 13, 2025
Dr D explained options for my cancer treatment very thoroughly, chose the best option for me
January 24, 2025
The best we have seen! ...
August 15, 2024
Dr. Delmastro is top notch.
July 24, 2024
Good.
July 24, 2024
Good.
August 15, 2024
Dr. Delmastro is top notch.
February 22, 2024
Fine
February 26, 2024
Excellent - Thorough, personable & approachable. Never feel rushed.
March 4, 2024
Dr. Delmastro is the Saint of Marshfield Clinic!
March 4, 2024
Absolute excellence!!
March 4, 2024
Doctor Delmastro is a great doctor. I am comfortable around him. He is friendly, supportive and listener.
March 4, 2024
Very good doctor. Lots of explanations and information. Took time to explain everything. Very thorough.
March 4, 2024
He's the best trust him; always happy to see him.
April 15, 2024
When the provider was leaving I remembered additional information. He sat down again to listen to what I had to say. He then used this information & rechecked tests in my chart.
May 2, 2024
Very receptive, open, honest.
June 10, 2024
Excellent.
August 15, 2024
Very experienced and careful.
August 19, 2024
Dr. Delmastro is the best! He's the reason I stayed w/Mfld. Clinic you are lucky to have such a caring & knowledgeable MD.
September 4, 2024
Dr. Delmastro was very easy to talk to about things that I was experiencing & what we could do to make things easier on me. He is a great listener too.
September 16, 2024
Really like him. He is very understanding and also seems very concerned.
September 16, 2024
The Doctor and PA always listen to my questions and answer with information I can understand .
December 16, 2024
Dr. DelMastro is very good at going over options in treatment and includes the patient in the discussion. Good at listening.
January 6, 2025
Dr always shows concern for me
January 9, 2025
wonderful doctor ...
January 13, 2025
Dr D explained options for my cancer treatment very thoroughly, chose the best option for me
January 24, 2025
The best we have seen! ...
February 22, 2024
Fine
February 26, 2024
Excellent - Thorough, personable & approachable. Never feel rushed.
March 4, 2024
Dr. Delmastro is the Saint of Marshfield Clinic!
March 4, 2024
Absolute excellence!!
March 4, 2024
Doctor Delmastro is a great doctor. I am comfortable around him. He is friendly, supportive and listener.
March 4, 2024
Very good doctor. Lots of explanations and information. Took time to explain everything. Very thorough.
March 4, 2024
He's the best trust him; always happy to see him.
April 15, 2024
When the provider was leaving I remembered additional information. He sat down again to listen to what I had to say. He then used this information & rechecked tests in my chart.
May 2, 2024
Very receptive, open, honest.
June 10, 2024
Excellent.
July 24, 2024
Good.
August 15, 2024
Dr. Delmastro is top notch.
August 15, 2024
Very experienced and careful.
August 19, 2024
Dr. Delmastro is the best! He's the reason I stayed w/Mfld. Clinic you are lucky to have such a caring & knowledgeable MD.
September 4, 2024
Dr. Delmastro was very easy to talk to about things that I was experiencing & what we could do to make things easier on me. He is a great listener too.
September 16, 2024
Really like him. He is very understanding and also seems very concerned.
September 16, 2024
The Doctor and PA always listen to my questions and answer with information I can understand .
December 16, 2024
Dr. DelMastro is very good at going over options in treatment and includes the patient in the discussion. Good at listening.
January 6, 2025
Dr always shows concern for me
January 9, 2025
wonderful doctor ...
January 13, 2025
Dr D explained options for my cancer treatment very thoroughly, chose the best option for me
January 24, 2025
The best we have seen! ...
January 24, 2025
The best we have seen! ...
January 13, 2025
Dr D explained options for my cancer treatment very thoroughly, chose the best option for me
January 9, 2025
wonderful doctor ...
January 6, 2025
Dr always shows concern for me
December 16, 2024
Dr. DelMastro is very good at going over options in treatment and includes the patient in the discussion. Good at listening.
September 16, 2024
Really like him. He is very understanding and also seems very concerned.
September 16, 2024
The Doctor and PA always listen to my questions and answer with information I can understand .
September 4, 2024
Dr. Delmastro was very easy to talk to about things that I was experiencing & what we could do to make things easier on me. He is a great listener too.
August 19, 2024
Dr. Delmastro is the best! He's the reason I stayed w/Mfld. Clinic you are lucky to have such a caring & knowledgeable MD.
August 15, 2024
Dr. Delmastro is top notch.
August 15, 2024
Very experienced and careful.
July 24, 2024
Good.
June 10, 2024
Excellent.
May 2, 2024
Very receptive, open, honest.
April 15, 2024
When the provider was leaving I remembered additional information. He sat down again to listen to what I had to say. He then used this information & rechecked tests in my chart.
March 4, 2024
Dr. Delmastro is the Saint of Marshfield Clinic!
March 4, 2024
Absolute excellence!!
March 4, 2024
Doctor Delmastro is a great doctor. I am comfortable around him. He is friendly, supportive and listener.
March 4, 2024
Very good doctor. Lots of explanations and information. Took time to explain everything. Very thorough.
March 4, 2024
He's the best trust him; always happy to see him.
February 26, 2024
Excellent - Thorough, personable & approachable. Never feel rushed.
February 22, 2024
Fine

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  • 1000 N. Oak Ave
    Marshfield, WI 54449
  • 1-800-782-8581
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