Arun Raajasekar, MD

Medical Oncology
Arun Raajasekar image
4.9 out of 5, 
New patient visits

Office Address

815 Pollard Rd,
Los Gatos, CA 95032

Arun Kumar Raajasekar, MD, specializes in hematology and oncology. He collaborates with patients to diagnose cancer and treat it using various medications, including chemotherapy, immunotherapy and targeted therapy.


Dr. Raajasekar values building strong relationships with his patients. He listens carefully to understand each person's unique care goals and partners with them to make personalized medical decisions. He tailors his approach to the individual needs and preferences of each patient, striving to provide the most effective and comfortable care possible.


He explains, "A clinic visit is more than just a health check. It's catching up with a friend, providing counsel and ensuring I'm doing everything I can to help my patient achieve the best outcome."


Dr. Raajasekar also enjoys coordinating care with other specialties to achieve the best possible patient outcomes. He believes that the cohesive nature of the El Camino Health team and their access to world-class resources will support him in delivering the highest level of care.


Dr. Raajasekar is fluent in English and Tamil. He is a member of the American Society for Hematology and American Society of Clinical Oncology and has presented in annual meetings.


Outside of work, Dr. Raajasekar enjoys reading (especially sci-fi), hiking and spending time in nature. He is also a dedicated Manchester United fan.

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Provider Information

Verified Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
4.9 out of 5
433 ratings,
104 reviews
10/26/2026
Dr Arun is caring, thorough, and has a positive attitude.
10/24/2026
All staff and doctor are very polite
10/23/2026
Dr Arun is a very caring provider and explained all my conditions very clearly, with a good plan of action.
10/2/2026
Dr. Arun showed genuine concern for me, offering both clarity and comfort during a very difficult moment. This is my first time being diagnosed with advanced breast cancer, and the news has deeply affected every part of my daily life. I have had to change my eating habits to support my health and adjust to the physical changes in my appearance. Moving through these challenges has required courage, patience, and a new level of selfcare. Even so, Dr. Arun's support has helped me feel seen, understood, and not alone in this journey.
10/2/2026
Dr Arun was personable, approachable, not presumptuous, listened carefully, reasoned with me. I felt heard.
9/22/2026
Dr. Arun accurately and quickly took action into helping me to solve the issues I have. By grouping & Emailing the Social worker, financing department and radiologist to speed up the Radiation Therapy. (It has been postponed over a month now).It's kind of a long story..I skip this part.Anyway, I'm so so greatful that Dr. Arun stepped in to sort things out first...to understand my situation/issue I face. (Dr. Arun cares enough to assist even he didn't feel very well that morning & besides, he didn't have to).So turn around, It went well where we communicated: Kimia social worker called & email me; personnel from Client Acct from El Camino Health called;and lastly Silicon Valley Oncology front desk lady called.Thank-you everyone for your time and efforts!Esp. To Dr. Arun, U r my lucky charm! Thank-you so much!!
9/20/2026
I was very pleased with my appointment with Dr. Arun. Although my bloodwork showed things to be I was very pleased with my video visit with Dr. Arun. Even though the most recent bloodwork showed that my levels weren't concerning, he spent time with me and my husband. The appointment never felt rushed. Dr. Arun was thorough as he discussed the findings and reassured me there was nothing concerning. I left the call feeling glad that I have such a wonderful doctor!
9/19/2026
He was so good explaining everything to me. Really was impressed.
9/13/2026
The doctor was very friendly and went over my blood work. He scheduled more blood work and went over each one and explained why.
9/13/2026
This doctor is outstanding. He explains clearly, addresses my concerns, had good rapport skills, summarizes situation now, future options, what needs treatment and what does not, open minded about other approaches to my medical situation. I have already recommended him to others and will continue to do so.
9/11/2026
I received initial care from one of the medical assistants or nursing staff before meeting with the provider. The clinical portion of the visit was handled professionally and helped prepare me for the next stage of my appointment. This summary reflects the sequence of care I experienced prior to seeing the provider.
9/5/2026
Very appreciated Dr. Arun whom took the time to overview my other's specialist doctors clinical notes like my Pulmonologist (which relate to my SOB), Rheumatologist for Lupus, etc prior to my appointment. In addition; Since radiation therapy has been delayed due to an outside El Camino Health Hospital issue, Dr. Arun kindly email my next Radiologist Shahil Mehta, MD @ El Camino Health in Sillicon Valley Oncology about my situation. Sincerely thank-you Dr. Arun for doing that!
8/28/2026
Our experience with Dr Arun has been only positive. We appreciate how he listens attentively when you speak and always takes his time to explain matters thoroughly. He has a wealth of knowledge and was accurate with the diagnosis from the beginning. No less important is Dr Arun's kind and caring attitude. It has been a wonderful experience having him as our doctor.
8/26/2026
1st class.
8/25/2026
Dr Arun was patient and caring. Such a change from the previous provider. I started to cry from the relief of being listened to
8/22/2026
Dr. Arun's staff members at the Cancer Care Center provided exceptional support throughout my visit. They were attentive, organized, and consistently ensured that each step of the process was clearly explained. Their professionalism and warm demeanor created a reassuring environment during an important appointment. I truly appreciate the high level of care and dedication they demonstrated.
8/22/2026
Dr. Arun was extremely knowledegble about my condition.
8/21/2026
Experience was great. Dr Arun was nice knowledgeable and friendly. He reviewed with me the lab results.
8/19/2026
Dr. Arun was great. He had exceptional bedside manner, explained everything very clearly, and answered all my questions. I felt that he truly cared about my health and was very engaged in assuring that I had the best care. He was personable and thoughtful. I learned several things about my condition from him during the appointment that informed some choices I made to improve my health.
8/19/2026
Good listener and understanding for my concerns,
8/17/2026
Dr. Arun is consistently polite and has a way of making people feel comfortable and at ease during his visits. He takes the time to explain treatments or test results clearly so the patient understands. Most importantly, he's not dismissive; he actively listens to your concerns and offers an explanation or solution.
8/17/2026
Super attentive
8/15/2026
Best
8/5/2026
Gives me all the time I need to ask questions and discuss options for my treatment so caring for my well being
8/1/2026
He is the best!!! Always makes you feel you are his only patient!
7/29/2026
Excellent.
7/21/2026
Dr Arun is very good
7/19/2026
He is a good listener and informative
7/19/2026
Exceptional doctor
7/17/2026
Dr Arun was great in answering my questions and in explaining the next steps, what and why, very well
7/16/2026
The care providers at El Camino Cancer Care Center demonstrate professionalism and compassion in supporting patients through complex medical decisions. They offer attentive guidance during appointments, ensuring that concerns are heard and addressed with respect. Their commitment to patient wellbeing helps create a reassuring environment during every stage of treatment.
7/16/2026
He is very personable and caring.
7/16/2026
The doctor & staff was very cordial. I haven't really completed my final answers.
7/15/2026
MRI staff were awesome.
7/15/2026
Dr Arun was very good and explained my concerns and provided various information regarding my medical condition and history. He was very nice and knowledgeable. He provided options next steps and I felt cared for.
7/15/2026
Very good
7/15/2026
Good service
7/14/2026
Dr. Arum as a truly an exceptional physician. He takes the time because he's looks at everything like a scientific puzzle. When you have blood disease issues, then you need someone like that who takes them into consideration, even the smallest detail. He's a very compassionate person and looks at the complete patient.
7/5/2026
Dr Arun described the test results and what they meant and answered all my questions and concerns very clearly and easy to understand
7/3/2026
Great
7/3/2026
Very good
7/2/2026
Very personal
7/1/2026
Felt I was treated well.
7/1/2026
Yes, Dr. Arun showed genuine care and explained that my case now has a dedicated nurse and a social worker assigned to support me.
6/30/2026
Dr Arun is a great doctor, explaining the situation and options. I am thankful he is my doctor
6/13/2026
Excellent
6/5/2026
I was asking for phlebotomy and Dr. Arun explained his own training and guidelines for using this treatment and also the possible negative side effects if not abiding by those guidelines. Was very good at giving a comprehensive description of the pros and cons and offering alternative of just donating blood on my own, no prescription needed.
6/1/2026
I liked the doctor and his staff. They were very kind and most helpful in my understanding of my dvt condition.
5/30/2026
Dr Arun is the best, I liked him from the first time we met
5/29/2026
Very happy with caregiver
5/28/2026
The doctor was great. He explained my my condition and his proposal of how to deal with it. That he would be closely observing me and managing my care.
5/27/2026
Dr Arun is wonderful. He's easy to talk to and very understanding. I feel fortunate to have such a knowledgeable caring doctor
5/26/2026
I adore Dr Rajaskar! He has excellent bedside personality, uber knowledgeable, and listens every visit. Explains things In a way that you understand and his demeanor, voice tone, look you In the eye, spreads confidence and verifies you understand what he's explaining. He is a rare gem. Keep him happy at El Camino at all costs. Hands down BEST Dr I have ever had.
5/10/2026
The doctors approach to me for my care was excellent
5/9/2026
Dr Arun is very professional and knowledgeable about the condition I am in
5/8/2026
Super nice and easy to share my concerns
5/8/2026
Dr. Arun is one of the best doctors I ever had!!
5/7/2026
The doctor took his time with us, thoroughly explain all of the options and potential side effects of each option.
5/5/2026
Excellent care provider
5/1/2026
Dr Arum Kumar is very attentive, personable and a very good communicator.
4/30/2026
Excellent.
4/27/2026
The Doctor was thorough in his description and overall care
4/23/2026
Dr. Arun is personable and a breath of fresh air in addition to his knowledge on his area of practice.
4/22/2026
Excellent care
4/17/2026
I appreciate Dr. Arun's personal interest in me and my wellbeing. He has a better memory than I and he listens to my concerns.
4/17/2026
If I know someone going through what I'm going through I will tell them to come here!
4/17/2026
Yes I tell everyone I so glad my insurance allows me to go to el Camino health
4/13/2026
The doctor was provided detailed information and took the time to explain what he was looking at, what it meant and what mattered. He demonstrated a genuine interest in ensuring I understood my lab results.
4/10/2026
During my visit, the oncology department team, including Dr. Arum, took the time to answer all of my medical questions about the upcoming breast surgery. They explained what I should expect before and after the procedure and made sure I understood how my ongoing treatments will continue. I shared that this is my first breast surgery, and they responded with patience and clarity as I asked many questions. We also discussed the importance of having a caregiver after surgery, and I explained that I may need a backup plan if my sister is unable to assist me. The team reassured me that support options are available and encouraged me to plan ahead so my recovery can go smoothly. I left the appointment feeling informed, supported, and more confident about the next steps in my care.
3/28/2026
My experience was excellent Service to me
3/27/2026
I appreciate the time Dr. Arun spent with me to go over my bloodwork and ultrasound results. He suggested that we follow up in 6 months with another round of bloodwork to make sure that my levels are still in the normal range. I am pleased with our discussion and I know that I am in good hands!
3/27/2026
I was concerned about one of my bloodwork results and he calmed me by sharing that the lab changed the ranges of what was normal and that my numbers were consistent and within the "normal" range and I didn't need to make changes. That was a relief
3/26/2026
I like my Doc very much
3/20/2026
Excellent.
3/19/2026
Dr Arun . Is a wonderful, caring person. I highly recommend him to anyone! The first time I met him I wanted to hug him!
3/18/2026
Dr Arun is very caring, and knowledgeable. I felt well taken care of by him.
3/13/2026
Dr is so caring and thorough
3/10/2026
I was very impressed with Dr. Arun. He was friendly and easy to talk to. He was also very reassuring which I greatly appreciated. He was very thorough in the questions he asked regarding my health habits, genetics, etc. I left the appointment feeling like I was in good hands.
3/6/2026
Very professional and attentive
3/2/2026
He makes me confident in El Camino's care.
2/25/2026
Dr Arun has been excellent
2/21/2026
PleasantNt
2/19/2026
Very nice doctor.
2/17/2026
Dr Arun and his assistant were very helpful to explain the process, procedures, results and where they thought I stood with this disease
2/17/2026
Dr was excellent
2/13/2026
Best doctor
2/10/2026
This Dr. Was so concederate and caring
2/4/2026
I've been very pleased or I would have made a change. Dr. Arun is very direct and easy to communicate with.
1/29/2026
I always feel like I'm top priority with my health
1/28/2026
Great Dr and staff
1/28/2026
Very nice and caring Dr.
1/23/2026
Excellent
1/22/2026
Dr. Arun has a great bedside manner! He introduced himself to me and also his scribe. We discussed lab values and he did a physical examination/assessment. He made me feel welcome and involved me in my next steps. Because I am a pharmacist, we spoke on a higher level. I highly recommend Dr. Arun as a physician and am glad that my internist recommended him.
1/21/2026
The best
1/18/2026
The doctor is a good listener.
1/15/2026
I love Dr Arun! He is very smart, professional, courteous & kind.
1/13/2026
Doctor is knowledgeable
12/31/2025
Very pleased with Dr Arun knowledge and professionalism.
12/30/2025
Very nice and informed doctor!
12/19/2025
The Dr was very professional, supportive And cared what my concerns were

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Map & Directions

Office Address

815 Pollard RdLos Gatos, CA 95032