Treatment & Services
- Bone Marrow Transplantation
- Clinical Trials
- Experimental Therapeutics
- General Hematology
- Medical Oncology
- Molecular Diagnostics
- Molecular Therapy
Specialty in Diseases & Conditions
- Acute Lymphocytic Leukemia (ALL)
- Aplastic Anemia
- Autoimmune Neutropenia
- Benign Hematology
- Blood Clots
- Blood Disorders
- Bone Marrow Failure Disorders
- Chronic Anemia
- Chronic Neutropenia
- Hematologic Malignancies
- Large Granular Lymphocytic Leukemia
- Myelodysplastic Syndrome (MDS)
- Paroxysmal Nocturnal Hemoglobinuria
- Pure Red Cell Aplasia
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Education & Professional Highlights
Education & Fellowships
Fellowship - National Heart, Lung and Blood Institute
Bethesda, MD USA
Residency - University of Nevada School of Medicine
Reno, NV USA
Doctorate - Humboldt University Berlin, Medical School (Charite)
Medical School - Humboldt University Berlin, Medical School (Charite)
- Department Chair, Translational Hematology and Oncology Research
- Member, Medical Advisory Board, Aplastic Anemia and MDS International Foundation
- Professor of Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University
Bone marrow failure syndromes including aplastic anemia, myelodysplastic syndrome, large granular lymphocyte leukemia, paroxysmal nocturnal hemoglobinuria, autoimmune neutropenia, pure red cell aplasia and other refractory anemias, cytopenias, acute lymphocytic leukemia
Awards & Honors
- American Society of Clinical Investigation
- America's Best Doctors
- Fellow in FACP since 7/1/09 from the Ohio Chapter
- American Society of Clinical Investigation
- American Medical Association
- American Society of Hematology
Research & Publications
(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.)
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 2/17/2016, Dr. Maciejewski has reported the financial relationships with the companies listed below. 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.
Consulting and/or Speaking. Dr. Maciejewski receives fees of $5,000 or more per year as a paid consultant, speaker or member of an advisory committee for the following companies:
- Ra Pharmaceuticals, Inc.
- Celgene Corporation
- ICON plc
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.
68 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.
|Courtesy, Respect & Concern||4.9|
|Knows Medical History||4.8|
|Time Spent with Patient||4.9|
|Patient Rating of Doctor||4.8|
6 Patient Comments
Reviewed on Jan 16, 2017
Overall very professional and skillful experience.
Reviewed on Nov 18, 2016
My children love him
Reviewed on Aug 26, 2016
fully informed of what to do upon discharge ftom CC, including meds and follow up.
Reviewed on Aug 24, 2016
Dr. M always explains medications, treatments and information about my disease thoroughly. I'm so glad that I found him. My local doctor has only treated one patient with my disease in his career.
Reviewed on Aug 17, 2016
Dr. M is the best Dr. that has ever cared for me.....
Reviewed on May 18, 2016
The purpose and side effects, as warranted, were fully explained during the office visit. When I phoned the doctor's office a couple of days later to insure that my understanding of the dosage and timing of the prescribed drugs was correct, my call was returned in less than half an hour. The conversation provided clarity as to length of usage and criteria against which to benchmark in using the prescribed medications.
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