Dr. Lauren Cassell, MD

Dr. Lauren Cassell, MD

General Surgery  |  
Female  |  
Age 65
Dr. Lauren Cassell, MD is a general surgery doctor who practices in New York, NY. She is 65 years old and has been practicing for 40 years. Dr. Cassell is affiliated with Lenox Hill Hospital.

114A E 78th St

New York, NY 10075

Contact Information

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Top Care Areas


See how frequently Dr. Cassell performs your care needs compared to other doctors.

Breast Diseases
very high
more than 96% of peers
Breast Lump
very high
more than 95% of peers
Axillary Lymph Node Dissection
more than 66% of peers

Dr. Cassell's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

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  • General Surgery

Board Certifications

  • General Surgery
    Accredited by: American Board of Surgery*

Conditions Treated

  • Abdominal Pain
  • Benign Tumor
  • Breast Abscess
  • Breast Cancer
  • Breast Diseases
  • Breast Duct Papilloma
  • Breast Fibroadenoma
  • Breast Lump
  • Cancer
  • Esophageal Diseases
  • Inflammatory Bowel Disease
  • Partial Lung Collapse
  • Ulcer
  • Ulcerative Colitis


  • Axillary Lymph Node Dissection
  • Biopsy of Breast
  • Breast Surgical Procedure
  • Embolectomy, Thrombectomy, or Vessel Exploration
  • Excision of Breast Tumor
  • Excision of Skin Lesion
  • Genetic Screening for Breast Cancer
  • Heart Surgery
  • Incision and Removal of Foreign Object
  • Intraoperative Radiation Therapy (IORT)
  • Lymph Node Biopsy or Excision
  • Mastectomy
  • Nipple-Sparing Mastectomy
  • Oncoplastic Surgery
  • Partial Mastectomy
  • Peripheral Artery Catheterization
  • Sentinel Node Biopsy
  • Skin-Sparing Mastectomy

Background Check

0 Malpractice Claims

No malpractice history found for New York.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Perelman School Of Medicine University Of Pennsylvania
    Undergraduate School | Graduated 1974
  • New York Medical College
    Medical School | Graduated 1977
  • Lenox Hill Hospital
    Internship Hospital | Completed 1978
  • Lenox Hill Hospital
    Residency Hospital | Completed 1982

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Cassell has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Cassell does not have any memberships or affiliations listed. If you are Dr. Cassell and would like to add memberships or affiliations, please update your profile.

Dr. Cassell's Reviews

Likelihood of recommending Dr. Cassell to family and friends
based on 68 total reviews (52 with comments)
Dr. Cassell's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Comments (52)
in Brooklyn |
Dr. Cassell listens to all questions and concerns until you fully understand your situation and you feel confident in her response.
in Rockaway Park, NY |
Dr.Cassell is amazing! My first visit my husband and I had with Dr.Cassell we knew I would be ok. Dr. Cassell was honest, realistic, smart, compassionate and warm. I can keep going on and on how impressed we were with Dr.Cassell. There is no better doctor, she is the Best!!
New York, NY |
Dr. Cassell performed a lumpectomy on my right breast. She was reassuring and professional at the same time. I have no scar. Her follow-up to the surgery has been excellent . She is very warm and personal. She makes you feel that you and the outcome of the surgery are very important to her. Rarely does she refer to her notes in your presence but she remembers everything about your last visit which is astonishing given how busy she is.
Chappaqua, NY |
I have recommended her to several people already. She is knowledgable, professional, warm and very understanding. I started seeing her for an annual check up years before I was ever diagnosed with breast cancer, and when I ultimately was, I felt I was in the best possible hands, with the best possible surgeon. I wouldn't go to anyone else.
in Jersey City, NJ |
Dr Cassell was highly recommended by a colleague. I consulted with Dr Cassell about a bilateral mastectomy, and chose Dr Cassell because, from the moment I met her, I was impressed. Aside from easy to talk to and extremely empathetic, Dr Cassell showed true passion for her practice/patients and was very knowledgeable about the surgery. Dr Cassell was, of course, professional, respectful, and thorough; but her kindness and compassion are what set's her apart. She is truly an amazing physician.
in New Canaan, CT |
Dr. Lauren Cassell has seen me for the past 7 years and I have been given the best care and advise. Not only she is a leader in the field of general surgery and breast cancer but she brings a level of confidence to her patients that relieves anxiety. Dr. Cassell is up on all new procedures , cures and research. She checks her patients throughout the year and is extremely thorough in her exams and report readings. I wouldn't see anyone else. The office staff is accommodating.
Woodside, NY |
I have been a patient of Dr cassel for many years I wouldn't hesitate recommending Dr Cassel to family and friends 10years ago I was diagnosed with stage one cancer of the breast fortunately I responded well to treatment and Dr Cassel has monitored me closely since the diagnosis and recovery, I'm for ever grateful for her compassion and kindness
East Northport, NY |
Dr. Cassell is a wonderful, thorough, engaging doctor. I've been seeing her since my first mammogram ten years ago. And she did surgery on me about five years ago. As far as the latter, her work was amazing. My scar is barely noticeable. I live out on the east end of Long Island now. And I still travel into the city to see her. Because I trust her. She's been there since my first miniscule dot of worry and while it may be annoying to do follow ups, she's looking out for me. You want that!
in Maspeth, NY |
Dr. Cassell has been my physician for the past 64 years. She is a wonderful person and physician. She is thorough, professional and personable. I have a strong history of this devastating cancer in my family, yet I feel very confident in being under Dr. Cassell's care. She takes time with each of her patients. I would strongly recommend Dr. Cassell to my friends and family members
in Neptune, NJ |
This week I celebrate 11 years since Dr. Cassell successfully operated on me. I am forever grateful to her for her expertise, compassion and ongoing care and concern. She is a special caregiver who stands out among doctors in her field. I look forward to my visits with Doctor Cassell, and I value all that she is.
in New York, NY |
Dr. Cassell is a wonderful doctor. She is warm, caring, decisive and I respect her completely. I find her demeanor very calming especially since a cancer diagnosis can be most alarming. Her entire staff is delightful, and I would recommend her to others in a heartbeat.
in New York, NY |
I had breast cancer 12 years ago And from my first visit with Dr Cassell I knew I would be ok The surgery went very well I had minimal pain and no complications She is always available to answer questions I f you are unfortunate enough to need a breast surgeon I would not hesitate to recommend Dr Cassell I now can enjoy my life free from cancer or worry knowing this wonderful doctor is there for me
in Congers, NY |
I have known Dr. Lauren Cassell for the past several years. She is always very professional, respectful, informative to each person's case as well as genuine person. You can literally sit down with her and discuss with peace in mind your concerns. I especially like " She always take the time out of her busy schedule to listen to what her patient's concerns are" as well as getting back to them with her personal phone call. Understandly, acknowledgement of this importance on the patient end .
in New York, NY |
Dr Cassell has always given me and the other patients I know-many years of expertise as well as loving care, kindness and compassion. Her superior bedside manner creates confidence and she gives her patients strength to get through any challenge. She has devoted her life to her patients and I feel privileged to know her and have her as my Dr.
in Brooklyn, NY |
I have been a patient of Dr. Cassell for many years. She was recommended by my breast surgeon who, upon retirement, took the steps required to ensure that his patiants were left in the best possible hands. Dr. Cassell exceeded my expectations. She is an exceedingly professional, highly skilled surgeon who is also thorough, kind and considerate. Because of this, when my sister was facing a possible problem, I took her to Dr. Cassell.
in Boca Raton, FL |
I have had many experiences with Dr. Cassell. She has been warm, caring and honest. I value her opinions and feel very comfortable in her care. Not only is she remarkably knowledgeable in her field, but she relays all of the information in a way that is easily understood by her patients. I am thankful to have her as one of my physicians.
in New York, NY |
I have been a longstanding patient of Dr. Cassell's. I have tremendous amount of trust in Dr. Cassell and hold her in the highest regard. She has always talked to me calmly, while methodically explaining the medical treatments and/or medications. Just as importantly, Dr. Cassell has never rushed me, always giving me the time to ask questions and fully digest the information. Her supportive staff is just as caring and extremely efficient.
in NY, NY |
There are not enough words in the English language to describe how absolutely wonderful Dr. Cassell is. Aside from being the best breast surgeon, she is warm, caring, considerate and walks with you thru the diagnosis, surgery, recovery with the kindness that just isn't seen by most/all surgeons. I heard the most awful news from Dr. Cassell almost 6 years ago. but when she looked me in the eye and said, "I got this", I believed her. And she meant it! Amazing woman and the best doctor!!!
in New York, NY |
She is a true specialist and she helps you stay calm and feel taken care of all the time.
in New York, NY |
Dr Cassell takes an inordinate amount of time to make sure her patients' needs are addressed. Her staff go over and beyond to make patients feel relaxed and taken care of.
in New York, NY |
Dr. Cassell has a very kind manner and expresses genuine interest in patient concerns or simple inquiries. She listens attentively and responds with clarity to all of my questions. Dr. Cassell provides appropriate time for a thorough examination and provides an opportunity for follow up thoughts. I highly recommend Dr. Lauren Cassell to all of my friends and acquaintances.
New Canaan, CT |
I was recommended to Dr. Cassell by another doctor. Dr. Cassell is an excellent surgeon and her intelligence and compassion are evident at every checkup twice a year. I trust her completely and would never go to anyone else.
in Secaucus, NJ |
Dr. Lauren Cassell was highly recommended to me by a close friend when I received the dreaded news that I had breast cancer. She performed a lumpectomy in August 2007. The surgery went very smoothly without any complications. She did a beautiful job leaving my breast look the way it did before surgery with just a small scar. I went to a seminar the day after surgery. The rest is history. I find her highly competent and compassionate. Her office is a pleasure to work with.
Hackensack, NJ |
Dr Cassell is an extremely smart doctor. She is able to diagnose and treat breast issues that others would find difficult. She is caring and compassionate. She is professional and a pleasure to deal with. I have been her patient for over 20 years and have recommended many people including family members who were all beyond satisfied with the care. She is well worth any time spent waiting because she gives each and every patient her undivided care and attention. You will be in the best of hands
in Westwood, NJ |
I always felt that Dr Cassell listened to my concerns and was extremely compassionate. She gives her patients confidence that they are receiving the best care, and speaks in a very straight forward way. This is the kind of doctor we all want when faced with cancer. She truly cares about her patients. I consider myself very lucky to have already known her when I received my diagnosis. I never considered looking further. I just picked up the phone and said, Hi Penny.....
in Madison, NJ |
I can’t possibly say enough about the extraordinary care I have received from Dr. Cassell. In 2007, she discovered a malignant lump in my breast that was not detectable to either a mammogram or a sonogram. The surgery itself was so skillfully done that there is no scar. Her office staff was exceedingly thorough and helpful in guiding me through the tests, the surgery, the treatments and made a very difficult time a whole lot easier. I am forever grateful.
in Brooklyn, NY |
When you're out in the storm, Dr. Cassell settles the sea waters. She is old-school intelligent, highly skilled, warm and real!!! When everyone else wants to over-react, Dr. Cassell will simply act! See Dr. Cassell under any circumstance, but especially if other surgeons have made you feel less comfortable with your diagnosis than you deserve to be! Further, Pennie & Elvira are sensitive and patient with all patients, young and old, new and continuing. 5 stars for every aspect of this practice.
in Brooklyn, NY |
Prior to finding Dr. Cassell, I had a terrible experience with a different breast surgeon from a major NYC medical center. When I needed to have another suspicious lump removed, I asked my radiologist to send me to the absolute best breast surgeon. I will be forever grateful she directed me to Dr. Cassell. Dr Cassell is the embodiment of the highest level of professionalism, knowledge, skill, care and compassion. It gives me enormous peace of mind to know I am in her care.
in New York, NY |
Dr Cassell has been my Dr for over 20 years. She is a brilliant surgeon and diagnostician. She is warm and compassionate and takes a lot of time with you.
New York |
As a patient with scares of breast cancer, and actually having breast cancer, I was vulnerable and frightened. I looked to Dr. Cassell for guidance and facts. Most important to me is to have a doctor who is competent, honest, direct, serious, realistic and smart. Dr. Cassell is all of those. As a bonus, she is kind, compassionate and warm. She is very highly regarded by the other doctors I had to see as a breast cancer patient. I trusted her with my life, and will continue to do so.
in Middle Village, NY |
I was diagnosed with breast cancer a year and a half ago. Dr Cassell was the only specialist that I went to see and trusted tremendously to perform a double mastectomy. She left no stone unturned and made a horrible time in my life turn into a positive one. She is caring sensitive and will always go the extra mile to explain and answer EVERY question. I highly recommend Dr. Cassell !
in Old Tappan, NJ |
Dr. Cassell is an exceptional physician providing the highest level of care and compassion to her patients. I have been a patient for more than 25 years and have entrusted my breast health to her with confidence. There is no better doctor, for sure!
in Brooklyn, NY |
I've been a patient of Dr. Cassell for 18 years and am so happy to have been referred to her. She explained and guided me through all surgical choices, yet allowed me to make my own decisions. Pre and post surgery she was always available for me. When I had a recurrence, which she picked up during an examination, there was no delay in arranging for immediate tests and biopsy, followed by surgery. Penny and Elvira, her office team, have always been excellent and helpful at all times.
in New Paltz NY |
Dr. Cassell is amazing. She has been my physician for many, many years and helped me make very difficult decisions regarding my health and I totally trust her. I am always impressed with how kind and patient she is and I was very happy with the results of my surgery.
in Gansevoort, NY |
I absolutely adore Dr. Cassell. Not only is she a superior breast surgeon, but she is incredibly gifted at soothing the anxious patient. She is honest and direct, respectful and kind. I felt so relieved to be able to trust in her to perform such important surgeries. She does her best to hide scars, never making unnecessary incisions and always considering cosmetic appearance. I credit her largely with getting me to my 5 year mark! She is top notch. HIGHLY recommend!
in New York, NY |
Dr Cassell is a very fine surgeon and physician. She is attentive,caring and very knowledgable I have been her patient for many years and would not consider going elsewhere. She also has an excellent staff.
in New York, NY |
One of the best doctors i have ever seen. i've been a patient for 21 years. Dr. Cassell is both professional and friendly. She always makes me more secure about my health. Her staff are all very professional and friendly as well. i could not recommend a doctor more highly.
in New York, NY |
I have been a patient of Dr. Cassell for nearly 20 years. She is a caring and fierce advocate for all of her patients. Her network of associated doctors is also top-notch. I trust her implicitly.
in New York, NY |
Wonderful staff. Dr. Cassell is thorough, patient, explains everything and has saved my life.
in Larchmont, NY |
I have been seeing Dr Cassell for about 6 years....She is highly professional, thoughtful and caring....She spends much time with me on each visit and performs a thorough examination...I.. truly trust her medical expertise
in New York, NY |
I have been a patient of Dr. Cassell's for the last 15 years. From the moment I met her, she had a calm but professional way of dealing with the situation. I knew I was in good hands. I also appreciate her warm and welcoming manner.
in Ridgewood, NJ |
I have been a patient of Dr. Cassell's for 14 years. She expresses such genuine interest during your visit that has remained consistent over these years. You do not feel like a number, you are treated with respect, sensitivity, and as an individual. I am so grateful to have been recommended to be under her care!
New York, NY |
Dr. Cassell is professional, friendly And genuinely interested in my care as well as knowing me personally. She takes time to talk with me about what's going on with me and my family. I know that I am getting the vey best care with her. I also commend her office staff for their friendliness and professionalism. I would never consider another doctor for my healthcare. I have already recommended Dr Cassell to others
Very knowledgeable and personable. Look forward to seeing her at my follow ups twice a year
in Staten Island, NY |
I have been a patient of Dr. Cassell for 13+ years. It's been 6 years since my prophylactic bi-lateral mastectomy, which BTW, is a work of art. I look and feel wonderful; all thanks to the skill of Dr. Cassell, a stellar surgeon. She is THE most amazing person I have ever met and to call her my doctor is beyond a privilege. Penny & Elvira, her staff, are professional, accommodating and lovely.
Pelham, NY |
Dr. Cassell was one of several doctors recommended to me by friends and acquaintances. My first meeting with her made it clear that she would be my choice. She took all the time that was necessary to answer my questions (which were numerous), and in addition was warm and very human. She clearly had a lot of experience and brought it to bear on our conversation. As I would learn in eight years of follow-up care, she and her entire office are committed to this high standard of care.
in New York, NY |
Dr. Cassell is not only at the top of her field, she is energetic, interested, She works closely with a team of Drs who are equally excellent. She was direct and efficient in recommending my course of treatment when I was diagnosed with breast cancer. I never felt I was under anything but the best of care, and her office team is professional but take the time to know who you are, personally. The result is I have one of the best outcomes, both in health and appearance, of anyone else I know.
in Brooklyn, NY |
I have been going to Dr. Cassell for 21 years. She performed a lumpectomy on me 13 years ago, then when the cancer returned, performed my double mastectomy. Dr. Cassell is probably the most caring, compassionate doctor that I have. She takes the time to listen to her patient and address any/all concerns they might have. She has saved my life twice. Her office staff, Penny & Elvira, are wonderful also and very accommodating. I love Dr. Cassell and would highly recommend her.
in Union City, NJ |
She's the best of the best! I met Dr. Cassell at a friend's urging to obtain a second opinion. Despite the scary diagnosis, I felt like I was talking to an old friend when discussing treatment options with Dr. Cassell. She provided top notch care and advice, has the best bedside manner of any doctor I have ever met, and her staff (Penny and Elvira) always goes above and beyond. I am extremely grateful to have crossed paths with Dr. Cassell.
in River Vale, NJ |
I have been seeing Dr. Cassell for over 15 years. She is thorough, professional, knowledgeable, caring. She takes her time to answer all questions and explains medical information in a way that is understandable to the patient. I trust and respect Dr. Cassell and highly recommend her to family and friends.
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Hospitals where Dr. Cassell has admitting privileges

Lenox Hill Hospital
100 E 77th St
New York, NY 10075
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