
Areas of Expertise
Conditions I Treat
- Multiple myeloma and other plasma-cell diseases
My Specialties
- Immunotherapy
- Clinical trials
Get to Know Me
I am an oncologist who specializes in treating people with multiple myeloma. The increase in new treatments in the past several years makes this a very exciting time for me and other specialists who care for people with this disease. Our team offers patients the highest-quality care as well as the newest treatments through clinical trials. These research studies will improve care and increase the chance of a good outcome for all of our patients.
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My research work involves developing innovative ways to use the immune system to treat cancer. We are conducting clinical studies of medicines that enhance the immune response as well as laboratory studies aimed at understanding how cancers such as multiple myeloma are able to evade the immune response. We hope to develop new ways to treat our patients through these studies and through laboratory research.
A myeloma specialist is a doctor with special training in diagnosing and treating myeloma.
A cellular therapy specialist is a doctor with special training in using cell therapies to treat health conditions such as cancer. Therapies can include chimeric antigen receptor (CAR) T cell therapy.
- Associate Attending Physician
Conditions I Treat
- Multiple myeloma and other plasma-cell diseases
My Specialties
- Immunotherapy
- Clinical trials
Education
- MD, Albert Einstein College of Medicine
Residencies
- NewYork-Presbyterian Hospital/Columbia University Medical Center
Fellowships
- Memorial Sloan Kettering Cancer Center
Board Certifications
- Internal Medicine
- Medical Oncology
- Hematology
Insurance Information
Understanding your insurance options is an important part of managing your cancer care. We have relationships with many common healthcare providers and plans.
In Network Coverage Type
PPO
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
HMO, PPO
In Network Coverage Type
HMO, EPO PPO, POS
In Network Coverage Type
PPO, POS, EPO, HMO
Offers a qualified health plan from the Health Insurance Marketplace. Call Emblem to learn more.
In Network Coverage Type
PPO, HMO
In Network Coverage Type
PPO
In Network Coverage Type
HMO, EPO
Offers a qualified health plan from the Health Insurance Marketplace. Call Fidelis to learn more.
In Network Coverage Type
EPO, HMO, PPO, POS
Offers a qualified health plan from the Health Insurance Marketplace. Call Healthfirst to learn more.
In Network Coverage Type
HMO
In Network Coverage Type
PPO
In Network Coverage Type
EPO
In Network Coverage Type
EPO
In Network Coverage Type
Federal Government
In Network Coverage Type
HMO
City Employee Health Plans (Gold and Gold Care)
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
State Government
Don't see your carrier or plan? We can help you understand your coverage.
If you don't have health insurance or are worried that your care may not be fully covered, our financial assistance programs may be able to help.
If you have questions about insurance, call us at 646-497-9176.
Make an Appointment

Contact and Location
Dr. Lesokhin sees patients at one location.






Looking to see a doctor at a different location? See all MSK locations.
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
- Clinical Trials Investigated by Dr. Lesokhin
- A Phase 1 Study of Elranatamab With Iberdomide in People With Multiple Myeloma
- A Phase 1b Study of Elranatamab Plus Carfilzomib and Dexamethasone or Elranatamab Plus PF-07901801 in People With Multiple Myeloma
- Smoldering Myeloma Registration Trial (SMRT Study)
- Clinical Trials Co-Investigated by Dr. Lesokhin
- A Phase 1b Study of CLN-619 in People With Multiple Myeloma
Read more

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. Lesokhin’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
Your trust is our main concern
We strive to keep reviews trustworthy, honest and fair. Learn more about our patient experience reviews.
4.9 240 reviews
- 4.8 Provider's Explanations Easy to Understand
- 4.9 Trusts Provider with Care
- 4.9 Provider Listened Carefully
- 4.9 Likelihood of Recommending Provider
As always Dr. Lesokhin provided me with excellent care!! He answered all my questions and concerns in a professional and caring manner. MSKCC has many many excellent and highly regarded compassionate physicians, and DR. Lesokhin is outstanding among them !!
Overall good experience. Im came to MSK from out of state for a second opinion on Multiple Myeloma. It was the most helpful and informative experience that I have had since I was diagnosed 2 months ago. Dr Lesokhin was informative, easy to understand, answered all my questions and I left the visit in a great state of mind with a feeling of hope.
Dr was terrific and felt very comfortable and I would highly recommend Dr Lesokhin he was terrific and give me the report I was hoping to hear
Doctor explained me tests results, discussed my conditions, reviewed additional info that I brought to the appointment and gave some recomendations. Doctor Lesokhin made sure that I fully understand all the topiccs that we touched during the visit.
This team was wonderful. When you are going through a traumatic situation, you need people around you to talk with you about things you have very little knowledge of. I appreciate all they've done for me.
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.
Alexander M. Lesokhin discloses the following relationships and financial interests:
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Arcellx, Inc.
Professional Services and Activities -
Janssen Biotech, Inc.
Professional Services and Activities -
Pfizer, Inc.
Professional Services and Activities -
Roche
Professional Services and Activities
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Serametrix
Intellectual Property Rights -
SVB Leerink
Professional Services and Activities -
Trillium Therapeutics Inc.
Professional Services and Activities
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 a complement to other publicly reported data and 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, 2023 through disclosure submission in spring 2024). 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 ecoi@mskcc.org.