
Sonia Mahajan, MD
Nuclear Medicine Physician
Titles
Assistant Attending Radiologist
Clinical Expertise
Molecular Imaging Using PET/CT, SPECT/CT, and Gamma Camera; Nuclear Cardiology and Cardiac Sarcoidosis PET Imaging; Theranostics
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New Patient Appointments
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Dr. Mahajan 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
- Speaks English and Hindi

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
MBBS, Maulana Azad Medical College
Residencies
Nuclear Medicine, Memorial Sloan Kettering Cancer Center; Nuclear Medicine, Institute of Nuclear Medicine and Allied Sciences
Fellowships
Molecular Imaging, Sloan Kettering Institute for Cancer Research
Board Certifications
Nuclear Medicine
I am a board-certified nuclear medicine physician with expertise in gamma imaging, positron emission tomography (PET)/computed tomography (CT), nuclear cardiology, and radionuclide therapies. What compelled me to the field of nuclear medicine is its focus on the functional aspect of imaging with an emphasis on processes that happen at the cellular and molecular level. Another unique advantage of nuclear medicine in oncology is that it is possible to not only evaluate tumor spread using radiopharmaceuticals, but also to use them for cancer therapy (theranostics).
Earlier in my career, I worked as an attending in various cancer care hospitals in New Delhi, India, where I gained invaluable experience in several aspects of the field. My training and research at Memorial Sloan Kettering Cancer Center (MSK) and Columbia University further expanded my perspective in image analysis, coordinated patient care, and collaborations with different clinical specialties. Working with the pioneers in my field at MSK and continuously learning new innovations in advanced imaging has been especially rewarding. I feel passionately about my work as a radiologist on the Molecular Imaging and Therapy Service and aim to provide the best patient care.
I have a diverse research profile centered on the use of metabolic imaging and new radiopharmaceuticals in thyroid cancer, skin malignancies, and rare cancers, with a focus on diagnosis, restaging, and treatment response at various stages. As a member of the thyroid and gynecologic oncology disease management teams at MSK, I work closely with other physicians and clinician-scientists to provide excellent quality care to our patients.
Awards and Honors
- Roentgen Resident/Fellow Research Award, Radiological Society of North America (2019)
- American College of Nuclear Medicine Editorial Fellowship Award, Education and Research Foundation for Nuclear Medicine and Molecular Imaging (2019)
- Brig. S.K. Mazumdar’s Best Diploma in Radiation Medicine Student Award, Institute of Nuclear Medicine & Allied Sciences (2014)
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. Mahajan’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
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