Dr. Kristin Hsieh Joins the New York Proton Center

New York, NY – July 14, 2025 — The New York Proton Center (NYPC) announced that Dr. Kristin Hsieh has joined the organization as its newest physician. Dr. Hsieh will serve as lead physician for breast and gynecologic cancers.

Dr. Hsieh joins NYPC following a residency in radiation oncology at the Icahn School of Medicine at Mount Sinai, where she served as chief resident and was selected as an ASTRO (American Society for Radiation Oncology)-AstraZeneca radiation oncology training fellow. She received her medical degree from Columbia University Vagelos College of Physicians and Surgeons.

“I am honored to join the team at the New York Proton Center where I can combine advanced proton therapy with compassionate patient-centered care to help achieve the best possible outcomes,” said Dr. Hsieh. “It is a privilege to support patients and their loved ones during such a critical time in their lives and to be part of a center that is at the forefront of innovative cancer treatment.”

“We are thrilled to welcome Dr. Hsieh to the New York Proton Center,” said Dr. Charles B. Simone II, FASTRO, FACRO, Chief Medical Officer. “Her clinical and research expertise in breast and gynecologic cancers will further strengthen our ability to deliver world-class, compassionate care. Dr. Hsieh will be an invaluable asset to our patients and our team as we continue advancing the role of proton therapy in cancer treatment.”

Dr. Hsieh has authored research and publications on radiotherapy for breast, gynecologic, lung, and head and neck cancers, with additional research dedicated to addressing healthcare disparities and advancing mentorship in radiation oncology. She is a recipient of the prestigious Roentgen Resident/Fellow Research Award from the Radiological Society of North America and the Emerging Advocacy Grassroots Leadership Award from ASTRO. Dr. Hsieh is fluent in English and Mandarin Chinese.

About the New York Proton Center

The New York Proton Center (NYPC) is creating the gold standard for proton therapy, giving new hope to patients living with cancer. The NYPC is advancing new and better ways to fight cancer with proton therapy, a highly targeted form of radiation therapy with fewer treatment-related complications. In partnership with leading academic medical centers: Memorial Sloan Kettering Cancer Center, Montefiore Health System, and Mount Sinai Health System, NYPC is the only proton center in New York, attracting patients from around the country and the world. Through impactful clinical trials and game-changing clinical research, NYPC’s internationally renowned clinical team continues to revolutionize cancer treatment while offering patients individualized, highly skilled and compassionate care.

The Sound of Victory: How NYPC’s Compassionate Care Led Irene to Ring the Bell

This week is Patient Experience Week, with this year’s theme: Building the Foundations of Experience. At the New York Proton Center (NYPC), thousands of pediatric and adult patients from the tri-state area and around the world have been treated by the dedicated doctors, nurses, radiation therapists and other staff who are passionate about caring for and transforming lives through compassionate, supportive care.

One of those patients is Irene Hong.

After a long battle with breast cancer, Irene rang the end-of-treatment bell on March 26, 2025 — a powerful symbol of resilience and hope.

When first diagnosed with stage 1 invasive ductal carcinoma (IDC) at the age of 36, Irene underwent surgery. But when her cancer disease extent was updated to stage 2, she knew from her treatment team that radiation therapy would be a next step.

“I kept thinking – we’ve been told to stay away from radiation our entire lives. It just didn’t make sense,” said Hong. “I had so many questions, and I was terrified of any potential long-term risks since I was under 40 years old.”

Her search for answers brought her to Memorial Sloan Kettering Cancer Center (MSK), where she met Dr. Isabelle Choi, a radiation oncologist who specializes in treating breast cancer at MSK and NYPC. Irene asked Dr. Choi what the safest option available was given her young age, wanting to travel and have children one day, and wanting to protect her heart from long-term treatment complications. That conversation led her to proton therapy at NYPC.

“I still had some anxiety,” said Irene, “but Dr. Choi and the nurses were so amazing at soothing my nerves.”

Between personalized nutritional recommendations, daily exercise support, and even personal check-in calls from Dr. Choi, Irene describes her care as “white glove service.”

“I have several friends who went through radiation, and none of them said they had this kind of attention and care,” said Irene. “This white glove service included a list of 20 stretches that the staff gave to me as part of my holistic treatment plan, which I thought was pretty cool. I even gave them to my friends to try.”

Lead Radiation Therapist Jason Pineiro, who has been with NYPC for five years, says that level of care is intentional.

New York Proton Center's Lead Radiation Therapist, Jason Pineiro smiling and standing inside a treatment room.

“Proton therapy can be very intimidating,” said Jason. “But every patient is different, and we cater to each patient as much as we can to make them comfortable. Whether it’s letting them choose their own music, showing movies during treatment for pediatric patients, or adjusting pillows and providing heated blankets—we want to make the experience as warm and inviting as it can be.”

For Irene, that attention made all the difference.

“Am I in a hotel?” she joked. “Everyone knows my name at NYPC – even the staff at the front desk – which is bizarre because I’m always wearing a cap, and somehow, they know it’s me. The women’s waiting room was like a sound bath with virtual forest visuals, and every therapist who treated me was phenomenal.”

The NYPC was designed and built from the ground up with an eye toward improving the patient experience and creating a welcoming and reassuring environment, from the comfort of the physical space to the warmth and sincerity of the clinical staff.

Jason emphasizes the importance of listening to patients to provide not just physical, but also emotional and psychological comfort.

“The number one thing we can do is listen,” he said. “Sometimes, patients just need someone to hear them and say, ‘What can I do to help?’”

Now, Irene is sharing her journey to encourage other cancer patients, especially Asian American women, through her TikTok channel, and educating them on proton therapy.

“I just wish more women, especially younger women, knew proton therapy was an option to treat breast cancer,” she said. “I love the NYPC team. I’m not sad I’m not going in there every week, but I am sad I don’t see the staff anymore. This treatment gave me a better quality of life, and I feel better and more confident every day.”

Ask your doctor if proton therapy might be right for you or for your loved ones. Choosing proton therapy might be the most powerful way to target your tumor and get you back to your life faster and healthier.

Latest Articles