Dr. Thomas Kosasa, United States
     
4.6
Consultations 35
Reproductive Medicine
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Doctor Introduction

Dr. Thomas Kosasa, United States


Dr. Kosasa is professor emeritus and former director of reproductive endocrinology at the University of Hawaiʻi John A. Burns School of Medicine. He graduated from Dartmouth College with a degree in architecture and earned his medical degree from McGill University Faculty of Medicine in Montreal, Canada. He completed his obstetrics and gynecology residency at Boston Hospital for Women and a reproductive endocrinology fellowship at Harvard Medical School's Peter Bent Brigham Hospital. Dr. Kosasa also serves as an advisor on maternal and reproductive health to the U.S. Food and Drug Administration.

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Location and Hours
1319 Punahou St # 980, Honolulu, HI 96826, United States
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  • Monday

    07: 30 - 15: 15

  • Tuesday

    07: 30 - 15: 15

  • Wednesday

    07: 30 - 15: 15

  • Thursday

    07: 30 - 15: 15

  • Friday

    07: 30 - 15: 15

  • Saturday

    07: 30 - 10: 00

  • Sunday

    07: 30 - 10: 00

    • Closed Now
    Affiliated Clinics
    Pacific In Vitro Fertilization Institute, United States
         
    • Reproductive Medicine
    Hours: 07: 30 - 15: 15
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    4.3

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    Featured Reviews
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    Dec 24, 2021
    Dec 24, 2021
    Personalized care and a pleasant experience working with Mari and her team!
    Dec 23, 2021
    Dec 18, 2021
    I am very pleased to work with Mari at Pacific In Vitro. Her responsiveness and efficiency are unmatched. She provided quick and accurate answers to my many questions and put me at ease. She is very patient and takes excellent care of her clients—very motherly, pun intended. Thank you for everything, Mari!
    Jul 17, 2019
    Sep 21, 2025
    I had a male sample analysis done here. The sample collection room you can enter with your spouse (Room 829A) was filthy. It looked as though it had not been cleaned for months: the shelves and pictures were covered in thick dust. The walls, floor, and shelves were splattered with bodily fluids (you know what kind!). There were greasy handprints on the wall beside the sofa. There was also hair, dirt, and dried bodily fluid on the floor. I cannot believe this was in a hospital. I will never return.
    Oct 1, 2025
    Pacific In Vitro provides excellent service. Dr. Celia Dominguez's expertise and clear explanations gave us confidence in every decision, while Nurse Chantel's warmth and attentive care made every visit easy and pleasant. We are very grateful to their team.
    Oct 26, 2025
    Feb 6, 2026
    Dr. Kosasa helped us conceive our son, and we will always be grateful. He took exceptional care of both my husband and me throughout the process. He is compassionate, patient, and truly listens to patients' concerns. His kindness and dedication meant so much during such an important time in our lives. His team was also outstanding and gave us tremendous support. We highly recommend Dr. Kosasa to anyone seeking a compassionate and attentive physician.
    May 4, 2026
    Pacific In Vitro Institute not only gave us the opportunity to build a family; they became family to us. We could not have done this without them and their continued support. We looked forward to every appointment and were always welcomed with incredible warmth. Science is amazing, and we will always be grateful to the Pacific In Vitro Institute family!
    May 1, 2026
    While working with another clinic in California, I used Pacific In Vitro for outside monitoring. Pacific In Vitro was an essential part of the process and made everything, including communication, as smooth as possible. Their staff were exceptional. They quickly learned my name, recognized me, and knew my latest updates and next steps as if I were one of their own patients. Dr. Dominguez was also extremely supportive and reassuring. Special thanks to Rick, who even made blood draws easy and enjoyable! I feel very fortunate to have been part of their team and to have had such a wonderful experience. Mahalo!
    Mar 19, 2026
    Dr. Kosasa and his team (nurses and staff) were supportive throughout our entire process. We do not live on Oahu, but Dr. Kosasa and his team was able to seamlessly correspond on all medical needs and updates. Emails and phone calls were always replied to as well as coordination for prescriptions and medical exams. Together, we were able to have our miracle baby! Extra appreciation goes to Mrs. Mari, she helped to spearhead our IVF journey and continues to support us with the process. Thank you so much Dr. Kosasa and your team!
    Jun 11, 2026
    Going through fertility treatments is an emotional rollercoaster. We had our share of painful ups and downs with egg retrieval fails and implant miscarriages, but the team at Pacific In Vitro was always our anchor. They worked tirelessly to come to a resolution, and we are now blessed with two beautiful boys. Dr. D is phenomenal and the best in her field—knowing she performs her own procedures herself gave us so much reassurance. No matter what heartbreaks or hopes you are carrying, this staff genuinely goes through it with you.
    Jun 9, 2026
    我对这家诊所和他们的员工赞不绝口。他们非常支持我，待人友善，充满爱心。每次就诊，我都感觉自己得到了充分的信息和周到的照顾。Kosasa 医生非常温柔，而且知识渊博。护士团队也堪称一流，诊所经理（Mari）的服务更是无可挑剔！选择 Pacific In Intro，您一定会感到满意！
    Jun 4, 2026
    千万别去Pacific IVF。 我们的经历充满了不透明、可疑的收费方式以及在我们人生最重要的时刻之一所表现出的不专业。 他们未经解释或征得同意就将辅助孵化项目添加到我们的账单中。由于该项目缺乏强有力的循证医学证据，我不得不据理力争取消。他们同意了，也没有进行该项目，但一个月后，我们仍然收到了账单，外加157美元的滞纳金。 药物费用远高于市场价，而且他们拒绝提供详细的收据，因此我们根本不清楚自己付了多少钱。 他们还试图向我们收取两个月的胚胎储存费用，而我们唯一的胚胎只在那里存放了大约三周。 尽管我们可以在当地一家更可靠的诊所以更低的价格完成同样的FDA检测，他们仍然强迫我们在他们的诊所进行高价检测。 移植过程本身也令人无法接受。 D医生要求绝对安静，说着诸如“不许说话”和“如果可以，我真想让你们都睡着”之类的话。当她意识到子宫后位时，她说：“我不是在做试验。我感觉运气不错。我们冒险一试。” 这事关胚胎移植。当时房间本来就很安静，这种程度的紧张气氛和议论完全没有必要，也很不专业。我在另一家诊所做过两次成功的胚胎移植，两次都没有被要求保持安静。事实上，我们全程都和不同的医生交谈。 移植后的护理更是令人担忧。我们被告知在6周时停用雌二醇（Delestrogen），但当我再次询问时，D医生提供的信息自相矛盾，甚至引用了人工智能生成的回复，承认停药会增加流产风险。 8周时，D医生试图将监测转移到她的私人诊所，并同时向我们和保险公司收费。这一点从未被明确告知，直到我质疑为何没有在诊所安排就诊时才被提及。我们立即将就诊转给了代孕妈妈的妇产科医生。 这家诊所在未经同意的情况下多次额外收费，尽可能多地收取费用，并且沟通不畅。我们不得不反复自行发现并纠正错误。 如果您一定要去这家诊所，请务必格外谨慎，并对所有事项都提出质疑。不过，我强烈建议您先调查一下岛上其他更可靠的诊所。我真希望当初在决定去这家诊所之前，能更充分地了解其他选择。
    May 9, 2026
    我强烈推荐Kosasa医生和Pacific In Vitro。试管婴儿之路本身就充满挑战，但整个团队的悉心照料、专业精神和鼎力支持，让我的整个过程从始至终都无比美好。 整个流程顺畅无阻。护士们无比细心体贴，给予了我极大的支持，尤其是Hong，她在我的整个过程中都发挥了至关重要的作用。Kosasa医生丰富的经验和专业素养让我信心倍增，同时，能够有机会与幕后默默奉献的科学家们短暂交流，也令我深受鼓舞。 Pacific In Vitro营造了一个温暖、充满关怀和积极向上的环境，让这段原本可能充满情感波动的时期变得轻松愉快。我期待着未来再次来到这里，迎接我的第二个宝宝。感谢Kosasa医生、Hong以及整个团队的辛勤付出！
    Apr 12, 2019
    Jun 24, 2019
    Oct 2, 2020
    Oct 29, 2020
    Absolutely the best! Thank you, Dr. Kosasa and staff. My son will be three in January. ❤️
    Mar 3, 2025
    Dr. Kosasa is an amazing, caring, and compassionate doctor. I was very fortunate and blessed to have him as my obstetric specialist. In 2007, I went to Pacific In Vitro and conceived my son, JoshuaDavid Jaictin. Dr. Kosasa delivered him in 2008. He is now 17 and a high-school junior. He is an honor student, has played piano very well for many years, and is caring and intelligent. Next year, in 2026, he will graduate from Moanalua High School and plans to attend the engineering school at the University of Hawaii at Manoa before continuing his studies at a mainland university. My son has taken engineering courses throughout high school. He also works in film and multimedia and hopes to make a movie someday. Thank you, Dr. Kosasa, for bringing so much joy into my life and Joshua's. Joshua is such a loving blessing in this world. I truly recommend Pacific In Vitro. The nurses and entire team provided excellent care throughout the IVF process. I worked in nursing for many years as a certified medical assistant, specializing in pediatrics, family medicine, and OB-GYN. I forgot to leave a review—perhaps because I worked in healthcare. This review is long overdue. I am deeply grateful to Pacific In Vitro.

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