
William M. Rafelson, MD, MBA
Medical Oncologist
Titles
Assistant Attending Physician
Clinical Expertise
Genitourinary Malignancies; Testicular Cancer (Germ Cell Tumors); Prostate Cancer; Bladder Cancer; Kidney Cancer
We post reviews for MSK healthcare providers who have at least 30 patient experience surveys completed. If you do not see reviews for a provider, it may be because they do not yet have enough survey responses, or the provider may not be part of the group of healthcare providers included in the survey.
Only outpatient providers are included in the survey. Healthcare providers who only work in the hospital or in urgent care are not included in the survey. Pathologists or researchers who do not provide direct care to patients do not have reviews.
New Patient Appointments
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Dr. Rafelson accepts the following list of insurance providers. Select your insurance provider to see more details.
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS, Transplant
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): HMO, PPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Commercial
In Network Coverage Type(s): POS, EPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO, HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO, HMO, DSN
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): EPO, HMO, PPO, POS
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): HMO, PPO
Payor Type: Commercial
In Network Coverage Type(s): PPO EPO
Payor Type: Commercial
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): EPO
Payor Type: Commercial
In Network Coverage Type(s): EPO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): Federal Government
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Payor Type: Commercial
In Network Coverage Type(s): PPO/OAP
Payor Type: Other
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): TBD
Payor Type: Commercial
In Network Coverage Type(s): HMO/EPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, EPO
Payor Type: Commercial
In Network Coverage Type(s): State Government
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Contact and Location
- 848-225-6915 Office Phone
- Speaks English
- Memorial Sloan Kettering Monmouth Middletown, NJ

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offer many services, including screening, chemotherapy, and medical testing.
See all locationsAbout Me
Education
MD, UMDNJ-Robert Wood Johnson Medical School; MBA, Heller School for Social Policy, Brandeis University
Residencies
Internal Medicine - Brown University
Fellowships
Hematology/Oncology - Brown University
Board Certifications
Internal Medicine; Medical Oncology
As a medical oncologist who specializes in the treatment of genitourinary cancers, I care for patients with prostate cancer, bladder cancer, testicular cancer, and kidney cancer. I work alongside urologists and radiation oncologists at Memorial Sloan Kettering Cancer Center (MSK) to identify the most appropriate medical therapy — whether it is hormonal therapy, immunotherapy, targeted therapy, or chemotherapy — to treat urologic cancer.
I am particularly interested in issues related to quality of life and symptom management for patients with prostate, bladder (urothelial), testicular (germ cell), and kidney cancer (renal cell). For our patients, knowledge of the disease is more powerful than fear of the disease. In the exam room, I find joy in reviewing images and retracing steps with patients and their families to allow them to see and fully understand the panorama of their disease. Together, we can create a path forward.
Read more
MSK stands in distinction from other cancer centers because of our broad portfolio of clinical trials, many of which are available to our patients through our regional care network. The clinical trials that we offer at MSK help us identify the patients who would benefit most from new approaches, such as the earlier use of immunotherapy, the combined use of immunotherapy and chemotherapy, or investigational targeted therapies. We also differ in that we discuss each of the cancer cases we see at MSK with our disease management team. This multidisciplinary group, which includes oncologists, radiologists, pathologists, and other experts at MSK, collaborates to develop management plans for our patients. Our patients get the best of both worlds: expert opinion and treatment close to home.
I see patients at MSK Monmouth in New Jersey, where I work closely with a multidisciplinary team of urologists, radiation oncologists, surgeons, radiologists, pathologists, medical oncologists, and many other specialists. At MSK Monmouth, patients can rest assured they are receiving the same level of care that MSK is known for in Manhattan.
I also enjoy teaching the next generation of doctors. Although it has been nearly 10 years since I became a physician, I have never forgotten the importance of mentorship for our student doctors. I previously taught at the Warren Alpert School of Medicine of Brown University, and I am currently an instructor in medicine at Weill Cornell Medical College, teaching regularly in New York City.
MSK stands in distinction from other cancer centers because of its broad portfolio of clinical trials, many of which are available to our patients in the regional care network.
-Dr. Rafelson
Awards and Honors
- Castle Connolly: America's Top Doctors (2023)
- Ruth L. Kirchstein T32 Post-Doctoral National Research Service Award
Colleagues
Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.
Clinical Trials

Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.
You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.
Search clinical trialsResearch and Publications
Visit PubMed for a full listing of Dr. Rafelson’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.
See all on PubMedPatient Reviews
At MSK, we’re committed to delivering the best care to every patient. We use feedback from our patients to continue to improve our care. We also post patient reviews online to help you make healthcare choices. Learn more about our patient experience reviews.
Disclosures
Doctors and faculty members often work with pharmaceutical, device, biotechnology, and life sciences companies, and other organizations outside of MSK, to find safe and effective cancer treatments, to improve patient care, and to educate the health care community.
MSK requires doctors and faculty members to report (“disclose”) the relationships and financial interests they have with external entities. As a commitment to transparency with our community, we make that information available to the public.
William M. Rafelson discloses the following relationships and financial interests:
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BioMark Consulting LLC
Provision of Services -
MJH Life Sciences
Provision of Services
-
WellSpan Health
Provision of Services
If you’re a patient at MSK and would like more information about your doctor’s external relationships, please talk with your doctor.
The information published here is for a specific annual disclosure period. There may be differences between information on this and other public sites as a result of different reporting periods and/or the various ways relationships and financial interests are categorized by organizations that publish such data.
This page and data include information for a specific MSK annual disclosure period (January 1, 2021 through disclosure submission in spring 2022). This data reflects interests that may or may not still exist. This data is updated annually.
Learn more about MSK’s COI policies here. For questions regarding MSK’s COI-related policies and procedures, email MSK’s Compliance Office at [email protected].