Feedback & Testimonials


From Tim & Barb

Testimonial letter

Dear Dr. Bob,

“Wishing you a beautiful day filled with all the things that bring you joy!!”


Barb K. & Tim

Testimonial letter


Testimonial letter

Dr. Bob,

“Just got off the telephone with you–so wonderful to get your additional input and updates for care! …”

Barb K.

Dear Dr. Bob,

“Thank you once again … for the great gift of your precious time and amazing kindness, ‘rarified’ expertise and compassion to our many needs! Your ‘sunshine’ and good will to us (once more!) alleviated many fears and misunderstandings–as we also had so many concerns and questions which you exquisitely clarified in your delightfully detailed and organized manner. We certainly believed arriving to meet with you that night we were facing a precancerous condition perhaps leading to a more deadly blood cancer; but also depriving Tim of the other treatment options for his prostate cancer in an effort to preserve is bone marrow.

We continue to feel honored to have a physician who possesses such astonishing integrity, humility and warmth. As I’ve told you previously in other correspondence your authenticity and commitment to your patients (and caregivers) as I have experienced and observed (read about) is unlike anything I have ever encountered.

I truly rejoice at our good fortune and give God my gratitude daily in prayer and reflection for Tim’s care. We left Monday night with renewed hope and courage for 2018.”

Warmest regards,

Barb K.


Letter from Richard

Testimonial letter

Dr. Robert Leibowitz, MD & Dr. Shahrooz Eshaghian, MD,

Dear Dr’s., Maria, Lydia, Sam & Mary,

“I want to thank, from the bottom of my heart for the past eleven years, [those] who have fought so hard for my extended life, whereas the medical community back East only promised me two years to live as of March 2003. You have been most kind, attentive, and truly amazing in your constant monitoring of my condition. The medical community back East has been amazed at the miraculous standards you have set in my care. You are truly on the cutting edge of Prostate cancer treatment. I don’t know how to thank you enough for all of the extra years that you have given me. It has truly been a blessing from the lord.”

Thank you so much for everything,


Richard J. ********


Dr. Bob – Happy Boss Day!

Testimonial letter

Dr. Bob,
Happy Boss’s Day! Even tho we don’t see you often, your presence is always felt through the office. Thank you for being an exceptional leader. It’s an honor to be a part of your staff. ~ Kylie

Dear Dr. Bob,
I want to thank you from the bottom of my heart for being such an amazing boss. Thank you for going above and beyond for all of us here in the work place. It is an honor to work for you. Love, Roxana

Dr. Bob,
Happy Boss Day! I’ve heard lots of great things about you. I’m looking forward to meeting you Simaima

Dr. Bob,
Thank you for all that you do for the practice and for each and every one of us. We’re very blessed to be working for such a kind and brilliant man. Your generosity is appreciated more than you know. Thank you for being the best boss imaginable. ~ Joanne

Dr. Bob,
Thank you for being my/our boss. It is an honor to work here, with everyone, and to be allowed to care for your/our patients. I am deeply grateful to come here daily and cannot express well enough how your kindness, generosity and compassion mean. ~ Emily

Dear Dr. Bob,
You are the most wonderful boss anyone could ever ask for. Your kindness and generosity is appreciated more than you know. We are blessed to have you as our boss. Thank you so much for taking such good care of us. We love you! Lydia 

Dr. Bob,
Happy Boss’s Day but they might as well call it Happy Dr. Bob Day, as you are a great boss to your staff and definitely a boss in Prostate Cancer treatment. Thank you for being amazing. Love, Mary

Doctor Bob,
Happy belated holidays … Thank you for the many things you do for the office, our patients and me that often go un-seen and unnoticed but have positive impact on us. You always have our wellbeing in mind. Much appreciation and gratitude to you for allowing my contribution to the compassionate care for our patients and for allowing me to prove my worth to the office. May you continue to “be well” through years to come. Happy “Boss’s Day” Dr. Bob… ~Tony


From John & Karen

Testimonial letter

Dr. Bob,

Wishing you all the joy and peace at this holiday season. Karen & I are so greatful and thankful for all you have done for us. Some things in life we don’t understand but life goes on. Karen & I want to treat you to a dinner out. Thanks for everything.

Love you.

John & Karen

PS – Take care of yourself


From Elizabeth A

Testimonial letter


Dr. Eshaghian & Staff,

Hope you’re all doing great. Just wanted to let you know that I’m super grateful to have such an awesome and wonderful doctor and staff. Thank you for everything!

God Bless. Merry Cnristmas!

Elizabeth A


From Brad R

Testimonial letter

Hi to my Friends and Loved Ones at COMG!

I think of all of you often, but especially at this time of the year. What you do in helping others in your personal way is so important not only during treatment, but also in the sometimes unfortunate aftermath. It was your special treatment of John and I which has helped me move forward since John’s death. I will NEVER forget your personal compassion and gentleness you offered to both John and I. I am forever grateful.

This box represents the fun in the Holiday season. The fun in life is the primary point! It’s not much, but I thought these things would bring a smile to your faces, if only for a moment! I certainly smile when I think of all of you.

For the last 9 months, I have been coping with severe leg pain from my waist down to my foot. It was originally diagnosed as sciatica…and was told it would “go away” on its own. Four weeks ago, we finally took an MRI and found a mass in my lower lumbar area near my spinal cord. My first two Neurologists gave me a very bad prognosis: less than three years with treatment. I finally visited a third neurologist at K U Medical Center and he said he could not say what it was until he “got a piece of the meat”. So, I am now in my fourth week of recovery from that spinal surgery. Of course, I was ready to call my friends at COMG if need be, but he was able to remove the tumor in its entirety and it was benign. I do not know how I am so fortunate that I received a reprieve on life. This recovery is a tough one, no doubt. I am toughing it through and doing much better. In fact, my second time out of the house alone was to shop for the Holiday package for all of you at COMG.

I am thankful for my recovery, but, as always, thankful for all of you. What you do is not easy, as the people helping profession is always a challenging one. But all of you always stepped up to the challenge for John and me. I thank you, again, for that.

I hope all of you have a great holiday and I hope to visit you again sometime soon!

Love to all of you…



From Rick F

Testimonial letter

To Dr. “Bob”,

A true giant…an innovative creator who has been touched by the hands of God.

Dr. Bob, I am forever grateful for having you in my life. Thank you for being you!

Your Grateful Patient,

Rick F



Tom P’s E-mail

Testimonial letter

E-mail Received by Maria Regalado

Dr. Bob is the most amazing person I have ever met – wish I could consult with him every week. By the way you are a close second. Can’t begin to express how much you all have lifted my spirits and given me unconditional hope!!!!!!!



Words can’t express how grateful and comforted I am – in knowing Dr. Bob’s taking the time to monitor and assist in my treatments.


Randy’s Note

Testimonial letter

Thank you for all of the great care!

Randy M


The Scott’s Note To Staff

Testimonial letter

Dearest Staff,

To each and every one of you, thank you for the kindness and wonderful care. We so appreciate all your help. Your willingness does not go unnoticed. Dr. Bob, Dr. E, Mary, Lydia, Bryanna, Maria, Joanne, Tony, Monsherri, Roxy, Erik & Erwin, so much gratitude and warmest regards.

The Scott’s


The Scott’s Note to Dr. Bob

Testimonial letter

Dearest Dr. Bob,

We so appreciate your expertise and loyalty through the years.

God bless you and yours

Warmest Regards,

The Scotts


A Letter from Dr. John R

Happy to see Dr. “Bob” Leibowitz is still in the trenches. The man deserves a Nobel prize for his triple hormone blockade.

In 1990 after refusing surgery and radiation, with a PSA of 21 and a Gleason of 9 (5+4), I flew out to see him.

Since then I have had only one other 13 month repeat of the THB, a few years ago.

PSA still+-1. T, however, decreased. Otherwise – A-OK.

Sincerely, Dr. John R.

Click Here To Read The Letters


A Note From Ivan & Kate

Testimonial letter

Dear Dr. Leibowitz,

Thank you for your support. The many years of dedication you have put into your research oncology as a whole has helped us and so many.

God Bless You & Yours.

Ivan & Kate


Email From Dr. Peter L

June 2, 2015

Who knew other than you early chemo!!! From my experience in a few patients I believed you were right, but fear of complications was a major block in doing early chemo in more men. Just chicken I guess. 

Best to you, Dr. Peter L.


Paul C’s Card

Testimonial letter

May 22, 2015

The flowers may be late for Memorial Day, but in fact they are for my memories taken from my visit last week, which I will cherish for many years.

You are, each and everyone, devoted and work with a precision and professionalism that is certainly most rare in the medical community.

My memories include surprise and some excitement but most importantly an optimism that you’ve given me as regards my health.

I give you my most sincere thanks and look forward to my next visit with you!

Paul C


Letter from Christian

Testimonial letter

(The excerpt of Christian’s letter that is transcribed below describes the background for a published German article on Triple Hormone Blockade. The article and its translation can be viewed by clicking here)

Dear Dr. Bob,

Since about 2003 we asked urologists to do a scientific study on the THB. Finally I found Prof. Wullich, Stoeckle and Dr. Kamradt, all three University of Saarland at that time who agreed to do it. From my more than 2500 patient data files (by now) about patients who were interested and about 600 patients who agreed to have the THB administered I sent 377 files of patients who seem to me most suitable for a study to the University of the Saarland. My files do not compile all necessary medical data but only the addresses and only such information which the patients told me to discuss their situation with them.

Ours, the patients organisations intend, was primarily not to compare our data with those in your publication but we were highly interested to find out how THB works in Germany. We had several sessions with Dr. Kamradt from the University of the Saarland in Homburg and also with Prof. Stoeckle, the chief. We discussed the questionnaire even though our proposals were not completely accepted.


Holiday Card from Carole & Johnny

Testimonial letter

We are so grateful for 16 added years of life.

-Carole & Johnny L.


Sandy B’s Note

Your entire office staff is to be COMMENDED on their professionalism, courtesy and patient kindness. I’m very “in tune” to that, and you do not see it often. Much appreciated.


Note From Thomas P

Testimonial letter

But mainly Cindy and I can’t thank you all enough for the non-stop effort and time that was put into helping us with counseling, treatments, meds. and future scheduling. You make us always look forward to going back there.

Also whoever is brave enough can please give Dr. Bob a big klss for us!!! He really made our day and night an day an night!!!! I would have kissed him myself but wife is the Jealous kind!

You can pay people to work but can’t pay them to care – you’ll take it several levels above!




Letter from Larry

Testimonial letter

Email from Larry Barman, Prostate Forum of OC

Hi Joanne,

We greatly appreciate your contributions in making the Presentations of Dr. Bob and Dr. Eshaghian a hugely successful event. Their Presentations provided important medical information, expertly presented and with a sense of compassion and concern for those afflicted with the disease. Dr. Bob was @ his best with his occasional humor and delivery. I believe Dr. Bob has been giving Presentations to the Forum for 20 years, which make him the most senior active Presenter in the history of the Forum. We are very honored and feel privileged to have a long standing relationship with Dr. Bob.

Also, pls. thanks Dr. Bob and Dr. Eshaghian’s Staff for attending the Presentation. It was a pleasure to have them @ the Presentation.

Pls. let me know, if I can assist you in any way.

Best Regards,



Dick & Terry’s Note

Testimonial letter

Our congratulations to
Dr. Bob
“Man of the Year”
an honor well deserved

Dick & Terry S


The S Family

Testimonial letter

Dr. Bob

You are
“Man of The Year”

“Man of our Lives”
The S Family


Erik K’s Note

Testimonial letter

I doubted you and you were always right

Thank you for nine years of life so far

Erik K


Fitz’s Note

Testimonial letter

“When a man has compassion for others, G-d has compassion for him.”
Tamil (A.D. 1st-6th cent.) Rabbinical writings

Thank you
Dr. Bob
for your unequalled compassion in the care of your patients

We are forever grateful

Richard “Fitz” & Betsy F


Bobbi’s Note

Testimonial letter

Dearest Bob,

My warmest regards to you on being recognized as “The Man of the Year”

Whereat not for your loving, talented care, I would not be here to celebrate this special event.


Bobbi F


Darla P’s Note

Testimonial letter

Congratulations Dr. Bob!

Thank you for the loving care throughout the years that you have given me and the P family.

With fondest admiration,

Darla P


Cissy’s Note

Testimonial letter

Dear Dr. Uncle Bob,

You were there for my family and me during a very stressful time in my life. Thanks to your concern, knowledge and involvement, I am around to honor you with my body intact. Again 20 years later, you were there to be involved in my case.

Congratulations to you

Love always,



An Anonymous Letter

Testimonial letter

If asked to describe dear Dr. Bob in one word, how apropos that Compassionate comes to mind, the very name he selected for his private practice.

Dr. Bob is one of the kindest, most sincere loving men I have ever had the privilege meeting. He is dedicated and has been

Committed to a life of caring for others, and finding an
Optimistic approach to healing no matter what the circumstances might truly be.
Medicine has new meaning in his heartfelt hands and he has made
Poignant progress with his understanding of science combined with real concern for the human heart.
Aware always of the people involved and the task at hand, he has proven to be an extraordinary man in his
Sharing his gift of knowledge with human emotion always in the foreground has made him Irreplaceable. He is able to bring two worlds together that are so far apart – logic and love. The results are obviously
Overwhelming, with friends, patients and family benefiting from the cure of
Nourishing the body and soul through love, laughter and medicine to
Achieve a wholeness you sometimes can not find on your own. The
Truth is, Dr. Bob makes this world a whole lot easier to

We thank you Dr. Bob


Alex G’s Ad

Testimonial letter

Dearest Doctors, I recently attended a cancer charity and took out an ad thanking you all. To say what you have meant to my family and my life there are no words. Just know I appreciate everything you did for me and will always have special place in my heart for you all. Much love and health to you all, Alexander


A Note From Sandra

Testimonial letter

Dr. Eshaghian,

Words cannot explain how grateful my family and I are for all that you and your staff did for my dad. My dad had nothing but great things to say about you. I personally appreciate how friendly and helpful everyone there was with us.

Thank you, Thank you, Thank you, Thank you, Thank you,



Card From Jim

Testimonial letter

Dear Dr. Bob,

Once again I thank you for keeping me alive & whole. I often wonder how my life has changed thanks to your work.

Happy holidays and, as I often quote you, be well.



Note From Eileen & Leland

Testimonial letter



Thanks so very much for the wonderful help you’ve been to us over the last 6 months. We have appreciated your quick & knowledgeable responses to problems, your efficiency and your friendly, kind attitude. We also really appreciated the medication schedules you did making a complex situation doable for lay people. I plan to show these to the hospice people in hopes they might adopt something similar.

Keep up the great work you do. You are a blessing to your patients!

Eileen & Leland


Sister Mary’s Letter

Testimonial letter

Dear Doctor:

I wish to thank you again for your loving care and concern for our beloved brother. I thank God for taking to Himself sooner than I realized. He was so grateful to you and your staff in the office as well as in the hospital.

Your concern for the family in making us more comfortable is another thing that we are most grateful for. It meant so much to all of us.

May God continue to bless you and yours as you serve Him in the sick.

Gratefully in Christ,

Sister Mary


Letter from Janet

Testimonial letter

Dear Dr. Leibowitz,

It is with great sadness and a very heavy that I write to you to tell you that your former patient, Carol, passed away on July 15, 2014. She always spoke of you in the most glowing terms, and was so grateful for everything you did for her over the years. I know she would have wanted you to know what happened.

About a year ago, Carol was diagnosed as Terminal, from a metastasis of the lung cancer she had 3 1/2 years ago. It was in her brain, liver and spine. Her oncologist (Jane Golden) gave her a new drug, Tarceva, which miraculously made the brain and liver clear. Unseen was a tumor in her femur, still growing. It caused a fracture and Carol went in for emergence hip surgery. Ever the optimist, she sailed through the surgery, only to be felled by a blood clot 24 hours later. Her heart stopped, and she never rallied.

I believe you gave her 20 years of life she would not have had otherwise. I, too, am grateful for this. Our friendship goes back to 1967.

I am not sure if the family is planning a service. Right now, they are just struggling to go on with their lives. I can let you know if you like.




Letter from Peter H

Testimonial letter


Dear Dr. Leibowitz, Dear Dr. Eshagian,

Otmar H, your patient and our father, passed away on August 2nd, he has lost the fight against cancer. The main reason was his malignant skin cancer. At the end he ate almost nothing. The last two weeks was parenteral nutrition required.

But on his 84th Birthday (2014/06/06) he played the piano and was pleased with the many well-wishers.

Thank you for the successful treatment of his prostate cancer since 2002. This prolonged his life for more than a decade.

Kind regards,

Peter H


Letter From Richard

Testimonial letter

Dear Dr’s., Maria, Lydia, Sam and Mary,

I want to thank you from the bottom of my heart for the past eleven years who have fought so hard for my extended life where as the medical community back East only promised me two years to live as of March 2003. You have been most kind, attentive and truly amazing in your constant monitoring of my condition. The medical community back East has been amazed at the miraculous standards you have set in my care. You are truly on the cutting edge of Prostate cancer treatment. Idon’t know how to thank you enough for all of the extra years that you have given me. It has truly been a blessing from the lord.

Thank You all so much for everything,




Card from Debbie

Testimonial letter

There are no words to adequately express the gratitude and love I have for all of you. You gave Jerry and I the years we shared together. But more than that, you always treated Jerry with dignity, kindness and patience. You respect human life, no matter how battered, bruised, or considered useless by society that life may be. You are truly the “Saints” of today’s world. You have chosen to help and serve that others have cast aside. Jerry offered all his suffering in union with that of Christ for all those who crossed his path. Please let’s continue to pray for each other until we meet again. God Bless You!


My Dear Friends,

Your kind expression

of sympathy

is so appreciated

Thank you for the beautiful card and the time you gave me with my beloved Jerry.

Love you,


P.S. Dr. Bob, thank you from the bottom of the heart.


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Compassionate Oncology Medical Group
2080 Century Park East, Suite 1005
Century City

Los Angeles, CA 90067
Phone: 323-792-2611
Fax: 310-229-3554
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