#1 pulmonary doctor in Temecula. I met Dr Killeen in the Temecula Valley hospital in 2014. At that time, I was extremely ill with respiratory issues caused by mold and sinus surgery with a super bug. Dr. Killeen literally saved my life. Today, I'm living and doing well and continue to have Dr Killeen oversee my health. read more

The best palmonary doctor caring honest and very knowledgeable. Has a lot of experience and very responsible, Highly recommended. read more

Just the facts. Called for appointment new patient. Emphatically told BOOKED out 5 months in advanced !!!!! In my opinion do not waste a phone call if new patient. Free Speech Opinion. Form your own opinion. read more

Dr. Timothy Killeen was absolutely amazing! Hats off to his amazing staff. They made my visit so enjoyable and Doctor was extremely knowledgeable and direct to me what to do for my health! Thank you so much Doctor for your excellent amazingly caring heart! Please tell them that Caprice and Jackie Bertone sent you! read more

I was very satisfied with my first visit with the Dr. The information that I received was very enlightening and the procedures and medications that were assigned were explained thoroughly. The staff was most accommodating. I am confident that my continued care will be successful. read more

I met Dr. Killeen at Temecula Valley hospital in March 2021, where I had been previously mis-diagnosed at Riverside Community Hospital..with extreme pain in upper chest. Dr. Kileen was amazing and I was so impressed with his knowledge, care, that I asked to be seen privately as a patient in his office. I feel I am in good hands and its too bad that I read some bad reviews on him. The medical field is tough these days and what people are experiencing is a faulty medical system NOT the individual doctor...I have many family members in the medical field and I know this first hand. I also know, that doctors like Dr. Killeen are hard to find these days. He spends time with you and is and excellent physician. I thank God everyday that I was able to find a doctor like him! read more

Beware. This is not slander, because it is all true. I'd like to see him deny it. If you're looking for a Pulmonologist that tells me, his patient of many years, that masks aren't necessary during Covid, and then argues with me about that statement for a few minutes, and proceeds to walk out of the exam room and storms back to his office, then you have found your dream doctor in Dr. Killeen. Dr. Killeen WAS my favorite doctor, and he can be very charming and I think is usually knowageable. That is why I gave him 3 stars. Otherwise, it would have been 1 star. I checked my Medicare bill and he billed Medicare for a LONG visit, which would be about 40 minutes. He was with me for less than 5 minutes when he left me standing there and walked out on me after unprofessionally arguing with me about the wearing of masks during a pandemic. I've been in the medical field for 30 year and am now 71 years-old. Who does he think he is arguing with a patient like that and then DEFRAUDING MEDICARE AND MY SECONDARY INSURANCE. I reported him, by the way to Medicare and intend to notify the Medical Board of California (mbc.ca.gov) that he is charging Medicare for services he does not provide, his unprofessionalism with patients, and his misinforming patients during a pandemic. read more

I was referred to Dr. Killeen by Temecula Valley Hospital, where I received great care. Most of his reviews are glowing, but I cannot say much for his office person, Jasmine. Rude, cold, unfriendly, "no time for you", "take it or leave it" , imperious attitude. I'm 80 this year, 25 years in the medical field. I have never been treated as caustically as this person treated me. My first appointment is for three months hence. No discussion. He must be a very busy man. What happens if you have the misfortune of getting sick?? read more

My Cardiologist recommended this doctor. I called to make an appointment and the person who answered the phone and his web site said they were taking new patients but the first question was what kind of insurance did I have? I have been told it's a good PPO. Blue shield/anthem. When I told her she said they were not accepting new patients until July. What? This is a doctor who really wants to help patients? Or more concerned about what kind of insurance you have. read more

We came into temecula valley hospital because my mom was having difficulty breathing. She was given xrays and they told us she had a lump in her lung and admitted her right away. The family was in panic mode for 2 days until we finally met Dr. Killeen. We felt no hope at all before seeing him. People came in and out of her room with bad news. I have a fairly big family and we were all squeezed into her room and slept on the floor and chairs trying to figure out what to do. He came in with a relaxed calm peaceful tone and told us the truth in a very caring way. We all needed some peace after 2 days of confusion and partial information. It will be a long road for my mom, but we're in this together and Dr. Killeen gave us the hope to see it through. I can't thank him enough... read more

Dr. Killeen is the best there is, caring, professional and extremely knowledgeable in the medical field. He has saved two members of my family from devastating problems! If you've had a bad experience with him, take at least 50% of the fault. read more

Love this doctor very thorough. And he is state of the art. Have a great staff and very clean. Will be my doctor fir many years to come because he will help keep me healthy. read more

WOW am very very surprised am the first review for such a Doctor. Believe because of its suburban location People are just not there yet using the Internet as a form of resource. Dr. Killeen wish my writing (don't believe it can) bring justice to this Dr., and his Practice. Sharp as hell, willing to keep digging in, follow through, lift you up, care, his intelligence, mannerism, communication, ease, GIFT. One Dr. Killeen shares so well. Two visits - never do a review after one. The consistency what really then tells me what I experienced wasn't just a welcoming moment. Dr. Killeen's method and who he is. Came out each visit better, (encase any of my friends I am OK) and actually better not only physically - his mannerism really helps with LEARNING. You know more too. Please don't care where you live !!! Dr. Killeen worth your drive, and your TIME! read more

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Dr. Killeen is simply the best, he takes the time to listen and explain. Most of all he cares and it shows. Excellent bedside manner. If you can get in as a patient you are very fortunate. read more

Dr. Killeen is one of the best doctors I've ever met. He has a true compassion for his patients. He has the best treatment plans. Dr. Killeen listens and takes so much time on each visit with me! He never makes me feel rushed! I've suffered breathing, asthma and allergy problems and he got me well! I love his staff! Tori on the front desk reception is the sweetest! Highly recommended this doctor! -Michele Tracey read more

I've been a Critical Care Nurse for 30+ yrs & can truly state that Dr Killeen is one of the be physicians I've worked with. He's an excellent diagnostician & has great bedside manner while spending a lot of time with his patients. He has a great knowledge base & very progressive with using current technologies. He has some of the most challenging patients & they come from all over the world. Highly recommended! read more

I've been a patient of Dr Killeen 14 year plus ! He is absolutely the best Dr I've ever had ! I have heart issues , lung issues and dr Killeen is always in the patients corner to provide the best possible care ! He's a fine person, encouraging and I owe my life to him ! He's helped me thru a lot ! His staff is always helpful ! read more

This doctor sends patients to emergency room, so not see them. Leaves the patient without any help and goes away. Dr Killeen says "I didn't know" but apparently this a standard procedure of what the office tells patients of this doctor. read more

I met Dr Killeen years ago, in the hospital, while my mother was hospitalized with a blood sugar reading of over 400. She had not been diagnosed previously with diabetes. Dr Killeen had been her Dr for years, yet I'm not sure why because she doesn't have a lung condition. I was under the impression that he was her primary doctor. At the hospital, I was shocked at the lack of professionalism and care Dr Killeen displayed when he told me my mother was "crazy". It appeared he didn't want to be bothered with her. Later, my sister told me that Dr Killeen used the f-word while speaking to her about our mom. I've never had an experience with a Dr like this before. It almost seems unheard of, but unfortunately true. I changed my mom's Dr soon afterwards & she was diagnosed with diabetes and Alzheimer's. "Crazy" was not a diagnosis by any of her new doctors. Compassion & professionalism were definitely lacking with Dr. Killeen. read more

After moving to this area from LA County 18 months ago, my daughter, who is an RN, got me an appointment with Dr. Killeen. I'm pretty sure he saved my life, I was on medications for heart problems (14 heart stents)....my hair had completely fallen out & I was having trouble breathing. During the initial examination he knew EXACTLY what drug was doing the damage and also causing a serious lung disease. My lung disease is gone plus my hair is actually growing back in... but the lung disease could have easily caused my death. He's by far the best doctor I've ever had...I've had to be admitted to the hospital for other problems---I'm 73. Every time a hospital employee hears me say that Dr. Killeen is my doctor they ALL say how lucky I am.....I AGREE!!!!! read more

Dr. Killeen may be a good doctor but his office staff is the worst I have ever had to deal with. To them it's about the money not about the patient. Expeected me to pay a no show fee even though I told them I would not be able to make the appointment when they called to confirm but since I didn't them at least 48 hours notice they want $25 from me.... After waitng 3 weeks on the waiting list to see him I was told they would not schedule an appointment for me unless I paid that charge. No thanks I will find a new doctor.... read more

Dr. Timothy Killeen is a compassionate, caring excellent doctor. He spends time and listens to your concerns. He doesn't rush to find a quick diagnosis. My husband is also his patient and on a regular check up Dr Killeen noticed there was a potential problem. Because of his insight a very serious problem was taken care of. In our opinion, Dr. Killeen is an outstanding Doctor. read more