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Department Hematology and Medical Oncology
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Cancer Center
  • General Hematology
  • Medical Oncology
View all 3 Treatment & Services +

Specialty in Diseases & Conditions

  • Abnormal blood clots
  • AL Amyloidosis
  • Amyloidosis
  • Anemia
  • Bleeding Disorders
  • Cancer
  • Clotting Disorders
  • MGUS
  • Monoclonal Gammopathy
  • Multiple Myeloma
  • Myeloproliferative Disorders
  • Platelet Disorders
  • Polycythemia
  • Pure Red Cell Aplasia
  • Smoldering Multiple Myeloma
  • Thrombosis
View all 16 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Medical University of South Carolina Hospitals
Hematology and Oncology
Charleston, SC USA

Residency - Michigan State University College of Human Medicine
Internal Medicine
Grand Rapids, MI USA

Medical Education - Michigan State University College of Osteopathic Medicine
East Lansing, MI USA

Undergraduate - Michigan State University
East Lansing, MI USA


  • Internal Medicine - Hematology
  • Internal Medicine
Research & Publications

Research & Publications

See publications for Sandra Mazzoni, DO.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 1/10/2022, Dr. Mazzoni has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

62 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

13 Patient Comments

Reviewed on Jun 16, 2022

It was clear that Dr. Mazzoni had thoroughly reviewed my records and was fully knowledgeable of my condition at the first visit. She spent more time with us than our doctors at home had in a number of visits combined

Reviewed on Jun 14, 2022

Overall - very good - Clinic and doctor (s)

Reviewed on May 13, 2022

I so appreciated Dr. Mazzoni's concern and expertise in the area of my problem.

Reviewed on May 10, 2022

From the very beginning this provider was confident that the strong team of doctors there at the Cleveland clinic would help me to obtain my best health. Her confidence made me more confident. I am praying that through this provider, I see a major success with reversing these health issues.

Reviewed on Jan 27, 2022

The doctor exemplifies all that a doctor should be. Always a thorough and informative experience.

Reviewed on Dec 16, 2021

I am so happy to have Dr. Mazzone as part of my medical team.

Reviewed on Nov 4, 2021

Dr.M is awesome! I left just a little confused but ok.

Reviewed on Nov 2, 2021

Dr.. Mazzoni has that rare quality of being professional, informative and caring. I would highly recommend her and believe that she is a true asset for the Clinic.

Reviewed on Oct 29, 2021

This doctor has been great and I have much confidence in her and I have seen a couple of other doctors that were fine. But my overall opinion of the Cleveland clinic is very very poor. The problems I have had there have been terrible. I will be happy to talk to you about it anytime. But I am sure no one will call because people don't like the truth. But I will say I had cancer treatment done and in conversation with people I met they many harsh things to say not all the same issues. Thank you for asking for my thoughts.

Reviewed on Oct 29, 2021

I am not talking about the doctor in this survey.. When I mark poor

Reviewed on Oct 26, 2021

Dr. Mizzoni is a first class physician. She answered all our questions, provided analysis of Mayo's kidney biopsy, discussed the current treatment that I am undergoing. I left feeling well informed.

Reviewed on Aug 17, 2021

My primary care physician made the appointment for me

Reviewed on Jul 27, 2021

Dr Mazzoni was fantastic and we are extremely appreciative of her thoughts and kindness.

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