Dr. Kleiner received her medical degree from SUNY Stony Brook. She completed her residency and an oncology and hematology fellowship at the University of Rochester School of Medicine and Dentistry. She is board certified in Oncology, Hematology and Internal Medicine.

Certified Specialties

Hematology - American Board of Internal Medicine

Medical Oncology - American Board of Internal Medicine

Faculty Appointments

Clinical Associate Professor (Voluntary) - Department of Medicine, Hematology/Oncology (SMD)

Credentials

Residency & Fellowship

Fellowship, Hematology & Oncology, University of Rochester Medical Center. 2005 - 2008

Residency, Hematology & Oncology, University of Rochester Medical Center. 2003 - 2005

Internship, Hematology & Oncology, University of Rochester Medical Center. 2002 - 2003

Education

MD | State University of NY at Stony Brook School of Medicine. 2002

Ratings & Comments

At URMC, we believe that patients should be empowered to make the right decisions regarding their personal healthcare. To do so, transparency is critical. URMC partners with Press Ganey, to survey our patients about all aspects of their care experience. We are now putting this pertinent information at your fingertips by displaying star ratings for our providers along with anonymous patient comments on our website. This will help you make better-informed choices about how and with whom you seek care. Click here to learn more about the surveys used to generate this vital information. Learn more about our survey process.

Ratings

Care provider's discussion of any proposed treatment (options, risks, benefits, etc.)

4.9

Likelihood of recommending this care provider to others

4.9

Explanations the care provider gave you about your problem or condition

4.9

Care provider's efforts to include you in decisions about your care

4.9

Concern the care provider showed for your questions or worries

4.9

Patient Comments

5.0

Dr Kleiner made time in her schedule to see me the same day she was contacted about my medical health. She is outstanding in taking care of me!

Oct 31, 2025

5.0

Great in all aspects

Oct 24, 2025

5.0

Always a great experience

Sep 29, 2025

5.0

Dr. Kliener and all of the staff are extremely caring and patient.

Sep 29, 2025

5.0

Provider was very attentive and explained plan of my care thoroughly

Sep 26, 2025

5.0

I love them !

Sep 20, 2025

5.0

I was very glad I came there too you

Sep 06, 2025

5.0

Outstanding service and care!

Aug 28, 2025

5.0

Dr. Kleiner is wonderful!

Aug 12, 2025

5.0

Good

Aug 01, 2025

5.0

All very good

Aug 01, 2025

5.0

Good

Jul 30, 2025

5.0

Dr. Kleiner was excellent as always. She demonstrated that she was/is concerned, informed, and very engaged in making sure that I was doing as well as possible both in my life generally, and as regards my chronic [...], that I was satisfied with my ongoing care and with my treatment plan, which is shared by consultation with Dr. [...].

Jul 18, 2025

5.0

I always recommend Dr. Kleiner.

Jun 22, 2025

5.0

Always a great experience

May 22, 2025

5.0

Very impressed with the doctor

May 08, 2025

5.0

Very good.

May 02, 2025

5.0

Good

May 01, 2025

5.0

Great experience

Apr 25, 2025

5.0

Unbelievable how kind and answered all my questions and everything I needed to know,I felt right at ease instead of freaking out

Apr 13, 2025

5.0

Great

Mar 21, 2025

5.0

Good

Mar 20, 2025

5.0

Excellent communication

Feb 05, 2025

5.0

I love Dr. Kleiner. She's so down to earth and really takes her time with her patients. She's very smart and also takes the time to get to know her patients.

Feb 05, 2025

5.0

All listed closely and were compassionate.

Jan 19, 2025

5.0

Shared updated study findings and gave me treatment choices

Dec 05, 2024

5.0

Always a good experience and good care with these people. Tuesday.

Nov 26, 2024

5.0

The doctor and all staff were very empathetic and helpful

Nov 24, 2024

5.0

Felt very comfortable with the decisions of my care. Dr. Jessica Kleiner is both knowledgeable and caring.

Nov 23, 2024

5.0

Extremely confident, helpful, and inclusive. I really don't have enough words to say how good this service is and how kind the providers are.

Nov 14, 2024

5.0

Dr. Kleiner is a very compassionate who never rushes the appointment. She answers all my questions and asks for my feedback in my treatment plan.

Nov 02, 2024

5.0

Dr. Kleiner and all PA,s have been very thorough and supportive

Sep 20, 2024

5.0

Amazing providers. Can't imagine being anywhere else

Sep 19, 2024

5.0

Dr Kleiner seemed very happy to see me and was attentive and interested in my lab work and any issues we discussed.

Sep 18, 2024

5.0

Jessica Kleiner went above and beyond in listening to my symptoms and ordering the proper blood work and CT scan that was necessary to look at my problem area. Her tests discovered my [...] malformation! She Is amazing at her job and medical diagnosis.

Sep 18, 2024

5.0

Dr. Kleiner is so knowledgeable and kind. If there is anything good about having cancer it is having the pleasure of meeting her. I trust her advice completely.

Sep 16, 2024

5.0

They respect me even when I have a learning disability

Aug 17, 2024

5.0

Dr Kleiner is the most helpful and compassionate physician I currently see. And there are many.

Aug 11, 2024

5.0

Listened very well

Aug 04, 2024

5.0

Explained the plans for my health going forward and why we were doing it that way, Very willing to listen to my concerns.

Jul 31, 2024

5.0

Good

Jul 25, 2024

5.0

Dr. Kleiner is one of the most caring, competent doctors I've worked with. She's awesome.

Jul 17, 2024

5.0

I asked a question and received an immediate response

Jul 12, 2024

5.0

Would highly recommend!

Jul 04, 2024

5.0

This is the first major health issue I've dealt with and it's been very scary and emotional. The provider was very kind and answered all my questions. She made me feel like we're making the best decisions we can at this time and she definitely lessened my anxiety.

Jul 04, 2024

5.0

She was very thorough and listen to me intently. I was very thankful she allowed me to describe my symptoms to the fullest.

Jun 06, 2024

5.0

Very happy with there services!

May 24, 2024

5.0

Dr. Kleiner is an excellent oncologist. She is always on top of scheduling my tests, reviewing the results and reviewing and prescribing my medications. She also spends time Talking with me to discern my mental health condition. I really appreciate Dr. Kleiner.

May 16, 2024

5.0

Dr Kleiner is the best!

May 09, 2024

5.0

Great experience

May 04, 2024

5.0

All good

Apr 18, 2024

5.0

Dr Kleiner is a wonderful oncologist and very knowledgeable

Apr 17, 2024

5.0

Outstanding physician and office staff!

Apr 07, 2024

5.0

In my opinion, there is no one better than Jessica Kleiner. I have recommended her to friends. She listens!!! She is patient. She is well-versed in options and side effects. When she is unsure, she will refer to specialists. She is everything you would want in the cancer-journey.

Feb 16, 2024

5.0

Dr. Kleiner is exceptional! She is sympathetic and compassionate and highly professional!

Feb 08, 2024

Excellent care by very kind people which is very important when you are ill.

Jan 25, 2024

5.0

Hopefully no one will have cancer but if so she is the best!

Jan 12, 2024

The best

Dec 22, 2023

5.0

Dr. Kleiner is an excellent physician who's very thorough and professional.

Dec 15, 2023

5.0

She is the best...

Nov 17, 2023

5.0

[...] Switching to her was the best choice I've made since I was diagnosed. It doesn't change my prognosis but I don't believe I would have the quality of life I currently have without my surgeon's & Dr. Kleiner's care.

Oct 26, 2023

5.0

I have already recommended the practice to a close friend and she, too, has rave reviews for this office.

Oct 12, 2023

5.0

Dr. Kleiner has been a wonderful doctor. She is compassionate, kind and cares about my well being.

Sep 20, 2023

5.0

She is great love her so much.

Aug 30, 2023

5.0

Great.

Aug 04, 2023

5.0

Dr. Kleiner is a wonderful skilled doctor with a warm and caring concern for her patients.

Jun 15, 2023

5.0

Love the doctor and her assistants. I know they are working in my best interest and are proactive about my care.

Jun 03, 2023

5.0

Dr. Kleiner was a consummate professional, she listened well, understood, and addressed my concerns completely. She has always been very open and willing to listen to my thoughts and concerns, and has addressed them consistently well.

May 19, 2023

5.0

Dr. Kleiner gives her patients very informed and detailed analysis of any test results performed and treatment plan progress.

May 11, 2023

5.0

I am so glad she is my Oncologist!

May 10, 2023

5.0

Always a good experience

May 10, 2023

Provider was friendly, knowledgeable and compassionate.

May 04, 2023

5.0

Dr Kleiner is excellent. She listens really well and is extremely knowledgeable.

Apr 28, 2023

Dr. Kleiner is such a reassuring presence. She always explains everything clearly and thoroughly.

Apr 24, 2023

[...] the hematology care team members I have interacted with have been outstanding in their concern for my condition and respect for my health care choices.

Apr 20, 2023

4.2

She was sensitive & caring. She was patient & repeatedly asked if I or my daughter had any questions. She addressed multiple area of my cancer treatment that had not been done even though I had dx almost 2 months ago.

Apr 13, 2023

5.0

Dr. Kleiner and I always go over labwork, last chemo session and a brief exam before next chemo treat.

Apr 03, 2023

5.0

Dr. Kleiner is an excellent doctor, very smart but also very caring. She's the best.

Mar 23, 2023

Provider is always on time for the visit. I never have to wait.

Mar 16, 2023

5.0

Dr. Kleiner is wonderful. I am a complicated patient and she coordinated all tests and specialized medications and is very thorough. She spends a good deal of time with me and I feel very well cared for.

Mar 02, 2023

5.0

Excellent

Feb 17, 2023