Dr. Thomas Kim, United States
5.0
Consultations 64
Reproductive Medicine
Doctor Introduction
Dr. Thomas Kim, United States
Dr. Thomas Kim is a board-certified reproductive endocrinologist, a high-complexity clinical laboratory director in embryology, and a certified medical technologist.
Dr. Kim initially planned to become an internist until his own experience with infertility changed his career path. After two years of treatment, Dr. Kim and his wife achieved their goal of becoming parents.
“It was an enlightening experience that sparked my interest in reproductive medicine and its related technologies,” he says. “I therefore decided to change my career path and become a reproductive endocrinologist.”
After fellowship training at the National Institutes of Health in Bethesda, Maryland, Dr. Kim launched the first military IVF program on the West Coast. Since its launch in 1998, the program has helped thousands of active-duty service members pursue parenthood. After his honorable discharge from the Navy in 2001, Dr. Kim partnered with CHA Medical Group to establish an IVF clinic in Los Angeles and pursue his interest in egg freezing as a fertility preservation option for women. He and his colleagues published a landmark paper on egg freezing, which was considered experimental at the time.
His research on innovative vitrification methods for human eggs attracted national interest and was covered by major media outlets, including The Wall Street Journal, Time, People Magazine, and The Boston Globe. Today, egg cryopreservation using vitrification is a widely accepted treatment option, particularly for patients newly diagnosed with cancer.
Dr. Kim believes modern fertility treatment is very different from a decade ago.
“This is a field where advanced technology meets frontline medical practice. As laboratory technology advances rapidly, particularly in molecular genomics, clinicians must remain current and help patients navigate complex medical information,” Dr. Kim says.
“I believe my experience as both a patient and a clinician helps me connect more effectively with patients,” he adds. “I am committed and honored to accompany them on their journey to build a family.”
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Location and Hours
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Monday
07: 00 - 15: 30
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Tuesday
07: 00 - 15: 30
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Wednesday
07: 00 - 15: 30
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Thursday
07: 00 - 15: 30
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Friday
07: 00 - 15: 30
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Saturday
Closed
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Sunday
Closed
- Open Now
Affiliated Clinics
Featured Reviews
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Alyssa S.
1 year ago
Jun 3, 2025
Dr. Landay and the RMA staff were a pleasure to work with during my egg retrieval and freezing. From logistics and patient care to answering every question, they were attentive and flexible, making an otherwise daunting process simple and convenient. Thank you to the RMA team for all your hard work💞
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Hyun Kim
1 year ago
May 22, 2025
Thanks to Dr. Kim's guidance and the staff's warm support, my husband and I were able to complete our infertility journey with hope and confidence. Our experience at RMA was wonderful and will always remain a meaningful and treasured part of our lives.
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Heidi Carrillo
1 year ago
Mar 17, 2025
This place is absolutely the worst. I made an appointment and called the day before to confirm it, then received a call later that day saying they had to cancel at the last minute, even though I had booked a month in advance. This was only the first appointment. I cannot imagine how disorganized they are, especially given how much I would be paying for these services.
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Jennifer M.
2 years ago
Feb 27, 2025
I tried to schedule an initial appointment but had to cancel because of illness. Even though I called to cancel, I was still charged a $50 cancellation fee. I have repeatedly tried to contact billing but cannot reach anyone or get a return call. I am leaving this review for others seeking fertility treatment. Infertility is difficult enough, but dealing with a clinic that lacks understanding and responsiveness makes the process even more stressful. Patients seeking fertility treatment already face significant emotional and financial burdens. Being charged despite giving appropriate notice, with no way to resolve the issue, feels unfair. A clinic that truly cares about patients should prioritize clear communication and compassion, not just policies that add to patients' stress.
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Fei P
1 year ago
Jul 9, 2025
An unexpected bill suddenly appeared on my account without warning, and they did not correct it for a year. Ridiculous.
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Claire Taghiof
1 year ago
Aug 22, 2025
They only want to take your money!! I came here and was immediately diagnosed with polycystic ovary syndrome (PCOS) without any hormone laboratory tests or health screening. When I heard this sudden diagnosis, Dr. Ghazal exclaimed that I was ‘lucky’ and had me sit down with her financial coordinator to discuss how I planned to pay tens of thousands of dollars for IUI and IVF treatments. The bloodwork she ordered included only a CBC and T4. There was no day-21 testing, no testosterone test, and no other testing related to my hormonal balance. I waited for a second opinion from an OB-GYN and was told that I definitely did not have PCOS and was actually very healthy. I worried about my fertility for months for no reason, and I am convinced this organization exploits perfectly healthy women for financial gain.
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chelsea Gavin
10 months ago
Nov 11, 2025
Dr. Siedhoff and his team deserve every compliment. He listened carefully, explained everything clearly, and reassured me at my most frightened. His team showed empathy and patience, making me feel truly understood and accepted. I highly recommend him.
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Samantha Simon
8 months ago
Jan 24, 2026
I am incredibly grateful for RMA's attentive care and professionalism. From check-in and scheduling through treatment, the entire team was proactive, responsive, and genuinely kind, making a potentially overwhelming process feel easy to navigate.
My nurses stayed in contact, returned calls promptly, and answered my questions by phone or through the app. I always felt supported and well informed.
Dr. Landay and her team were outstanding, and I sincerely appreciate their guidance through the egg-freezing process.
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Zaneta Grant
8 months ago
Jan 15, 2026
Unfortunately, my experience at RMA SoCal began very poorly. I was directed to administrative manager Ashley with questions about my informed consent form. She quickly became impatient, spoke condescendingly, and repeatedly interrupted me. When I asked her to let me finish, she said “no” and stated that she had other patients to attend to. She then told me that because I would not sign before my questions were answered, my appointment would be canceled and their legal team would contact me.
This felt like a missed opportunity to establish trust at the beginning of care. The consent form explicitly encourages patients to ask questions, yet mine were dismissed arrogantly and rudely. Being pressured to sign without a full discussion, followed by hostility when I raised questions, made me deeply uncomfortable and unheard.
Even if their legal team eventually contacts me, this experience alone has made me question whether the clinic truly respects patient concerns. I am sharing this so others understand how consent questions may be handled before deciding to proceed.
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Brittany
9 months ago
Dec 6, 2025
After speaking with Ashley and Dr. Kim, I changed my rating from one star to four. They sincerely addressed my concerns and handled the matter appropriately. Dr. Kim's follow-up care matched the excellent care I received during my first egg-freezing cycle, and I would readily recommend him as a provider.
Although I may never know what caused the front desk's behavior a few days earlier, I hope the issue is taken seriously and prevented from happening again.
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I previously froze my eggs at RMA SoCal and had a good experience with Dr. Landay. I am now preparing for fertilization and tried to find out when I could be scheduled because my insurance is about to expire. Since Dr. Landay was fully booked, I scheduled a telehealth consultation with Dr. Kim. He also told me that because time was limited, I might need another option if no opening became available, so the team would follow up in advance.
When I received no follow-up, I called on the day of my appointment with Dr. Kim and was told there was no record of it. Not only had no one followed up, they had lost my appointment—something I had never experienced at any clinic. It was not entered on the wrong date; there was simply no record at all.
The front desk said she would contact Dr. Kim to see whether he could still see me at the scheduled time, since his calendar seemed to have an opening, and would call right back. Twenty minutes after the appointment time, I still had no update. I called several more times and reached voicemail. Suspecting they were ignoring my number, I called from another one—and they answered. As soon as I identified myself, she said she had another call, asked me to hold, then after 7 minutes sent me to voicemail. I tried again; someone briefly answered amid rustling sounds, then transferred me to voicemail. They clearly did not want to speak with me. I hope they merely mishandled my appointment.
This was a frightening experience with a clinic storing my frozen eggs. I have never encountered such unprofessional conduct at any medical facility. If Dr. Kim or Dr. Landay sees this, please call me. I am clearly getting nowhere with the front desk.
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Esther Lim
5 months ago
Apr 17, 2026
They patiently provide helpful medical guidance that patients can follow and understand.
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Amber Vittoria
5 months ago
Apr 2, 2026
I know this review is long overdue, but I still want to express my gratitude to RMA Southern California. In June 2023, after struggling with unexplained infertility, we began our journey at RMA. Under the attentive care of Dr. Kim and nurse Katia, we started IVF in January 2024.
Their compassion, clear explanations, and support made this emotional journey manageable and even hopeful. They always answered my questions patiently and made me feel genuinely cared for at every step.
We have now welcomed our daughter, and I truly could not have reached this point without them. I am deeply grateful to the entire team and recommend them to anyone facing fertility challenges.
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Katy Donahue
6 months ago
Mar 12, 2026
I just completed an egg-retrieval cycle with Dr. Randi at RMA Los Angeles. I was very satisfied with the entire process. From the initial consultation, Dr. Randi spent at least 45 minutes, possibly longer, explaining female fertility, relevant statistics, and the egg-freezing process. I ultimately decided to proceed, and I am very glad I did. RMA made the process easy, and I felt I received excellent care. After closely following all the detailed instructions, my retrieval cycle was very successful. Dr. Randi was highly skilled, and my phlebotomist Jacqueline was equally outstanding. I saw her at every appointment. She was very professional and always made me feel comfortable and well cared for. She added a human touch to an intimidating and complicated process. My nurse on retrieval day was Elizabeth, who was also wonderful and made me feel very relaxed. I highly recommend this clinic to anyone interested in learning about egg freezing.
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Yuval Glam
4 months ago
Apr 29, 2026
Dr. Randi and her entire staff are outstanding. At every appointment and in every interaction, I felt their genuine care and warmth. Dr. Randi is kind, attentive, and professional, and her dedication to her patients is clear.
I am very grateful for their excellent care and compassion and highly recommend them.
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Katie Burton
3 months ago
Jun 27, 2026
Dr. Jin and the entire RMA team were warm and approachable, providing attentive, compassionate care at every stage of treatment. Although it was sometimes difficult to reach certain team members, my overall experience was excellent.
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Shawn Talebdost
3 months ago
Jun 17, 2026
Do not go to this clinic. Billing is a nightmare, and communication is terrible. This is the worst place for IVF treatment. They only want to squeeze every last cent out of you while providing abysmal service. Our problems started on day one. Our first in-person appointment was suddenly changed to telehealth because the doctor supposedly had an emergency to handle. However, when we logged in, the doctor was clearly sitting in the office. Meanwhile, the clinic manager, Ashley, aggressively demanded payment before the telehealth consultation began.
Their inefficiency is shocking. It took the doctor a full four weeks to review the medical records we uploaded on the first day. Communication between the clinical and billing departments was severely disjointed; billing had no idea when our procedure would begin, which delayed our prior authorization. I spent two full weeks calling and emailing them. They claimed a system malfunction had prevented notifications from being sent and that my message had been ‘missed,’ even though they had clearly seen my earlier emails.
Even worse, our insurance company contacted RMA five times to request medical records, but Ashley completely ignored them. I believe this clinic violated California medical billing law. They force you to pay the full amount upfront and then hold your money until the insurance company finally pays. Save yourself the unnecessary trouble and go elsewhere.
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Jacqueline Bui
4 months ago
May 19, 2026
Their accounting and administrative department is absolutely terrible. To avoid trouble, please look elsewhere. We called multiple times to confirm whether they accept our insurance. They said they couldn't verify my husband's information at the moment, yet tried to get us to go first, promising to provide detailed receipts—it felt like a scam. When I called to cancel the appointment, they still charged me a cancellation fee.
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Neel Shah
4 months ago
May 19, 2026
This clinic is an absolute scam. I called four times to ask whether my wife’s and my insurance could be used at this clinic. They kept not telling me, and only informed me the day before the appointment that I had to fill out a consent form first before they could confirm. After I filled it out, they still said they didn’t know if my insurance was covered by them, telling me to come in first without any confirmation. So we wanted to cancel the appointment, and then they charged us a cancellation fee.
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Gary Ausstin
3 months ago
Jun 1, 2026
I had cataract surgery with Dr. Jin. The results are amazing! I finally don't need to wear glasses anymore. It's even better than I expected!
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Nicki Cushing
3 years ago
Apr 27, 2023
I had a wonderful experience with Dr. Kim and everyone at RMA. The staff were very friendly and helpful, and all my appointments were always quick and on time. I cannot say enough positive things about Dr. Kim; he made me feel very comfortable throughout the process.
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Paula Katsurayama
3 years ago
Jun 16, 2023
My experience with Dr. Kim and RMA was excellent! Dr. Kim is an outstanding physician. He was always attentive, and I always felt cared for by him and his staff. I am very pleased with the experience and the outcome!
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Matt Vucu
3 years ago
Jul 28, 2023
Every fertility journey is clearly unique and personal, and I wish everyone reading this the best of luck. I want to share that we had an absolutely amazing experience with Dr. Kim and the RMA staff. Dr. Kim explained our situation in great detail and developed an excellent plan. His love of knowledge truly showed, and by the end of our first egg retrieval, I could not believe how much I had learned. The office and staff were extremely helpful. They made the retrieval process as easy as possible for my wife, and she felt very comfortable before, during, and after the procedure. She was likewise well cared for during implantation and subsequent monitoring. Overall, we highly recommend RMA LA because of Dr. Kim and his outstanding team, as well as all the incredible work performed by the embryologists in the laboratory.
Overall, we will remember:
The amazing work of the doctor and embryologists
No waiting for appointments
Excellent communication with nurse Tori,
Convenient coordination with insurance (Aetna)
Extremely convenient retrieval and transfer without discomfort
Ultrasounds without discomfort
Clear instructions
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Michelle Kim
3 years ago
Jul 30, 2023
I had a wonderful experience with Dr. Kim and his staff. Everyone was very kind and made me feel comfortable throughout the process. They also responded promptly to questions by phone and email.
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Efua Obeng
3 years ago
Aug 15, 2023
I worked with Dr. Thomas Kim earlier this year and had the best experience. At our first meeting, he spent about 30 minutes explaining the fertility process and answering my questions. He was patient, interested in my fertility journey, shared extensive knowledge, and set realistic expectations.
What I appreciated most was that he heard my questions and concerns. He was not dismissive; he investigated my concerns and followed up appropriately. This built trust and made me feel that he was invested in my fertility journey. Thank you, Dr. Kim!
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Many years of experience
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English
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Loyola U.
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Clinic Address
11500 W Olympic Blvd #150, Los Angeles, CA 90064, United States
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