I'm surprised at the 5 star reviews. He covered for my husband's doctor in the ICU for 2 weeks and…read morewhile under his care, my husband's condition declined significantly. He administered a sedative that my husband had a reaction to. Two nurses tried to get him to change it and he talked down to them like they were stupid. He insisted on feeding my husband a formula that he was allergic to. I had to fight all these things. Then he falsified the medical records! And that scared me the most. This man is a danger to patients. I was so relieved when our regular doctor returned back to work, and my husband was safe again. If I could leave a minus-star review, I would.

We had an amazing experience under Dr Shiftman's care. After 2 emergency surgery's my wife woke up…read morewith Dr Shiftman at her bedside in SICU. He got things back on track and always took time to answer our questions. We highly recommend his services to anyone one needing a top notch Pulmanologist.

Dr Galko has been my pulmonologist for over 8 yr. Dr Galko takes time to listen to all question and…read moreconcerns. She is the best doctor that I have ever had. I highly recommend her.

I see Dr. Galko for an annoying persistent cough that often haunts me and annoys everyone around…read moreme. I always thought it was just something I had to deal with and blamed it on allergies. Dr. Galko patiently tested my lung capacity and explained to me in detail what was going on and how to fix it. All included a cocktail of over the counter medications. Each time her diagnosis and recommendations miraculously cured my lifelong cough issues. She often runs behind on her appointments. Both times I came to visit her, she was about half an hour late, but as soon as she walks into the room she is all yours and takes her time with each patient which makes her well worth the wait.

I highly recommend Dr. Rezvan for sleep studies. From my first visit they were attentive,…read moreknowledgeable, and compassionate. They explained the sleep study process and results in clear, plain language, addressed my concerns, and followed up to ensure my treatment was effective. The sleep lab staff were professional and the facility was comfortable and on time. I feel confident in the care I received and appreciate their thorough, patient-centered approach.

The office staff is seriously disorganized, and unfortunately it shows in how patients are treated…read more The staff often appears frustrated and unhappy, and that attitude gets taken out on patients who are already dealing with stressful health issues. Dr. Chang reviewed my sleep apnea test with me over two months ago, and together we selected a CPAP machine. Since then, I have heard absolutely nothing. After multiple follow-up calls, I was repeatedly told that the delay was due to my insurance company not approving the equipment. When I contacted my insurance directly, they informed me they could not authorize something that had never even been submitted by the office. On top of that, the patient portal constantly has problems, making communication even harder. Sleep apnea is a serious medical condition, and delays like this can directly impact a person's health and quality of life. Patients should not have to chase down basic medical follow-up or discover on their own that paperwork was never submitted. My advice: pick up copies of your exam results and consider seeing another pulmonologist.

My pulmonologist, a superb doctor and diagnostician, retired after many successful years in private…read morepractice. As a result, I sought out a new pulmonologist, and initially decided to see Dr. George Shahinian in Aliso Viejo. Dr. Shahinian, at first glance, seemed to be a personable, capable doctor with a moderate-sized practice. Yet, I discovered that he was actually socially awkward, impatient, and prone to misread significant patient symptoms, leading to an appalling misdiagnosis. When recounting important background information on a new patient, such as me, he discounted what he was told and made a dismissive sarcastic remark. In a vital follow-up appointment, after contracting a virus and being terribly sick for eight days, he walked into the room and proceeded to shake my hand. I gave him an elbow bump and said, "I don't want you to contract what I have." I was coughing non-stop at night and hardly slept for over a week. He prescribed an antibiotic that I had never taken and then opened the door to exit. I was shocked that he hadn't listened to my lungs; after all, he was a pulmonologist. I called him on that and he walked back and in a perfunctory manner listened and said I was clear and okay. I asked him,"Why weren't you going to check me?" He replied, "I didn't think you wanted me to touch you." I reiterated, "I didn't want to make you ill, but I did want a check up. That's why I'm here!" The antibiotic made me profoundly sick on the second day. So much so, I had to throw all the pills out. I called his office and told them I cannot sleep at night and needed a cough expectorant with codeine in order to get some rest. He never provided that which was was my primary need when I saw him. He refused to prescribe a cough expectorant with codeine; instead he prescribed a capsule medication that would desensitize my throat and bronchial tubes to lessen the cough response. I read the side effects, which included "choking," and decided I didn't want to risk it. No help here! Two days later, my wife and I went to Hoag Urgent Care in Aliso Viejo and were seen by a wonderful, caring, and highly competent doctor who quickly diagnosed me with bronchitis, prescribed antibiotics I had taken before (with no adverse affects), and also prescribed a cough expectorant with codeine. Last night, I had my first night of restful, healing sleep in 11 days. Bottom line: Dr. George Shahinian is simply not a good choice for your doctor. He offered no help and, in fact, made me worse with his selection of antibiotics--which I later learned many people cannot tolerate. Moreover, he refused to provide the medication I knew would be helpful. And when he noted my lungs were clear, he seemed to assume I was good to go; when in reality, I had contracted a virus which morphed into bronchitis and was not well at all.

Came here when I wasn't feeling well at all, my physician had me come to Dr Shanian to get checked…read moreout. I was wheezing and could hear something in my lungs that was causing Nasty ick coming out. When I went to urgent care they gave me an inhaler and Dr. Shanian wanted to make sure I needed it. They did a couple of exams to check if the albutetol was actually improving my lungs which is wasn't. I saw a couple of previous yelp reviews that said that staff was rude but I've been here 2 times and both times everyone that helped me genuinely wanted to help and was so nice. (Side track: I'm obsessed with the girls long black hair its soooo pretty! I had to tell her.) Everything was really clean, looked neat, and the machine was down at first but technology has a mind of its own and they shut it down and when they turned back on, wow it worked! All these previous reviews about the machines not working hasnt worked with computers or isn't very patient. Im going back in 3 weeks for another test and looking forward to it! Great team. :)

I was referred to Dr. Yeam in 2005 by my Primary Care Physician for what he thought was sleep…read moreapnea. Under Dr. Yeam's care, I have been using a CPAP since that time. I cannot speak more highly of Dr. Yeam and his team. His professionalism and are is outstanding. His bedside manner and his approach to patient care is exceptional. Without reservation I would recommend him for anyone with a sleep disorder. The one and only downside is when calling his office, which is part of the Memorial Care Medical Group. More times than not, you get stuck in corporate phone system hell. The choose this number for X or this number for Y gets pretty frustrating. And then you get a person on the phone that cannot answer a question because of lack of access or is remote from his office and has zero information is a nightmare. Dr. Yeam used to be a solo practitioner or shared with another doctor and contact was simpler and you didn't feel like just another number but a patient. I understand why he joined MemorialCare but corporate medicine is a pain. But because he is such an outstanding physician, I'm staying with him for my care.

Run away!! Perfect example of a doctor that is ruining more lives than helping. I have been…read moredealing with sleep apnea for over 15 years and I'm only 40. Went to Dr. Yeam with multiple sleep studies in hand. Each of them showing an AHI of over 50 without my oral appliance and lower than 4 with it. Dr. Yeam told me in 40 years he has only seen one cure for sleep apnea and that is using a CPAP machine. Based on this logic my oral appliance was not working. He said a CPAP is the only cure for sleep apnea. If it doesn't work for you than you are lazy and not using it. First, a CPAP machine DOES NOT cure sleep apnea. It treats the symptoms of it. Used one for years and it sucks. I guess in a way my sleep apnea was cured because I wouldn't get more than 4 hours of broken sleep per night. No sleep = no apnea. Secondly, there are many forms of treatment for sleep apnea, not just one. I suppose in 40 years there has not been a single technological advancement in the medical field of sleep medicine. Not one, not any, nothing, nada. Do 5 minutes of research and you'll see that's not the case. Congrats you're already more informed than Dr. Yeam. Fast forward and it turns out I have narcolepsy & sleep apnea and will end up getting the MMA surgery. My last sleep study using my somnodent oral appliance, I had a AHI of 2. My AHI was 78 when not using it. The surgery is intense but has a 96% to 97% success rate to perm cure sleep apnea from my conversations and research. I am taking medicine for narcolepsy that has changed my life. If I listened to DR. Yeam my life would be ruined. I would be fighting narcolepsy by using a CPAP. I wouldn't be in line for a surgery that permanently cures sleep apnea. I hope people read this and it helps. If you want to use a CPAP for life than DR. Yeam is your guy. Otherwise, keep looking. Don't let your life be ruined by this doctor and his 40 years of only providing one treatment for the symptoms of a medical problem.

So let me start off by saying I initially was looking for an appointment at the Riverside location…read more I live in the IE. After my initial phone call to the Riverside, and then days later sending an email to them, I received a call from Terry at the Irvine location. Terry immediately addressed my concerns I put in the email. He also alerted me that I was misinformed my the Riverside location, about not being able to self-refer when I have PPO insurance. My husband was/is going through a medical emergency and I was attempting to establish care and an appointment for him to get checked out. If it was not for Terry being thorough/detailed, proactively securing my husband's medical records by me answering a couple of questions, overall kind, attentive, and we would not have gotten in to see a doctor until the following week. We were booked next day, with Terry's help. As a result, I opted to make the drive from the IE to Irvine, instead of the Riverside location the very next day. Good medical practices are very hard to find these days. Terry actions demonstrated compassion and understanding of my concerns of not having my husband wait any longer for an examination. Thank you Terry! Additionally, our appointment was for 12pm. The doctor was prompt and thorough as well. The receptionist that check us in was also prompt, thorough, she showed concern when it appeared that my husband's oxygen was a tad bit low. Said for him to relax, lay back in the recliner and she would get the doctor in right away. I sincerely appreciate the team here. I'm glad Terry called. Thanks you to everyone we encountered last week.

This is a terrible office (Riverside)! I started this process in October of 2025 and still do not…read morehave a machine in July 2026. It is taking nearly 3 months just for the sleep study results to be discussed with me over the phone and that appointment is in August. This is such bad business practice. I would never suggest anyone to this office. 1 star is to many for this business. NEVER AGAIN

Caring staff Well organized…read more Usually no long wait I have sleep apnea (no fun) but Dr does too and he shares tips to cope

I have been seeing the Amazing Dr Rezvan for over 5 years now at Paloma and he is amazing person…read moreand Dr! So this rating is solely based on this location and how the business is being handled. Side note :I was there for an appointment where these is absolutely no parking at all!! I was late to my appt but was in there 7 mins late. When I got in there was a line and only one of the two receptionist would acknowledge anyone checking in. Why have two women with one there taking up space to ignore patients? I was there within the 15 mins late grace period! The two people in front of me didn't speak English and required maybe a translator to help them they each took a huge amount of time that made me later to check in, however I had checked in online and updated my address and insurance as well as my drivers license before showing up 24 hours before..... So why the long wait to ask the same information from me. What's the point of the online check in then? Just for kicks and giggles?? After having me sit after checking in again with the lovely front desk lady that did actually check me in, in a room of coughing sick people while I'm autoimmune for twenty some minutes. Then a young lady medical assistant came out behind the counter from the back to tell me I needed to be rescheduled due to me being so late. Wtf! I was within the grace period and had already checked in before hand 24 hours before!!! The one woman with the neck tatted up simply ignoring everyone up front could have simply told them I was there and asked if I had already checked in to expedite me as all was in order. Or place someone else that can help there and is she's doing billing she does not need to be upfront at all! There was nothing at all I needed to line up for to discuss when already checked in! Their check in system and pre check in is a joke. I added in my primary new PPO in advance and had the secondary all still the same as I had before. I declared all this 24 hours before. So how is now one looking at this before of you require it before? Why ask people to recheck in to simply ignore all previous 24 hour check in data and have us stand in line where you need a translator not a receptionist. The people that took up all that time were super super early so they were taking up the time of someone who had an appt now and had already checked in. There has to be a better way. I made the app as an emergency as I have had high exposure to severe toxic particular matter inside my rental home and having to pay 5.9k a month for rent on a house that I am forced to buy a tent as well as a blow up mattress to sleep in my backyard due to the two Urgent care visits I had recently showing me the dangerous particular matter is from a new AC installation with no permit that was not put in right. Dr. Rezvan please open your own practice and leave this dysfunctional place please. I would be willing to use PPO and pay full price to see you and the Paloma company is being ran extremely inadequately to its full function. To the owner; At this level you will only see HMO or MediCal patients and loose out on money as it's being ran like it's a dollar discount t store. With no care or attention to detail. Now I'm left urgently sick with no appointment . The assistant was trying to book me out weeks out in complete unawareness to my severe and urgent need for care. Literally negligence is right up there with the words that came to mind and it's not the Dr it's the owner and how he is running the place. I wonder if the insurance companies need to refer patients elsewhere where they have enough staff to accommodate the quantity of patients booked at once. I will be posting a picture of the ridiculous parking lot too. IF YOUR HEALTH AND TIME MATTER SKIP YHIS PLACE MY ALL MEANS!

Dr Tammelin was my elderly parents pulmonologist. My father…read morewas asthmatic and my mother had some serious heart and lung issues. He far surpassed what I expected in both care and outcomes. I highly recommend this highly skilled professional. I firmly believe he added several + years to my aging parent lives by providing excellent care that they wouldn't have had if it weren't for him. He has been nominated each year for 15 years now by other doctors and rated in the top 7% in his field by Castle Connelly for the past 15 consecutive years, sustained excellence that other doctors revere and wouldn't hesitate taking their own families to him for care.

Lung issues, care quality was excellent. He pinpointed the diagnosis. I saw him a number of years…read moreago and in my opinion he is the best!!!

Kind and patient. Very caring. Even the lady at the desk was very professional and had a sweet…read moreattitude. I felt well taken care of in there.

Dr Haung was the first doctor that I felt really cared for my well being. He is patient and…read moreempathetic as he listens to your medical concerns. Unfortunately I had to change pulmonary doctors, and it saddens me to lose this provider. If you have lung or sleep issues, I highly recommend Dr. Haung.