Who we are

Who we are


Silvia Krakowiak Rosenthal

silvia krakowiak

Silvia Krakowiak Rosenthal has a graduate and post graduate degree in Business Administration from Fundação Getúlio Vargas (FGV-SP). She is a Brazilian entrepreneur, based in São Paulo, and mother of two children.

After a personal experience when one of her relatives successfully concluded cancer treatment in the U.S., Silvia was contacted by others who were in similar situations. They needed information regarding treatment as well as help scheduling appointments and dealing with logistical details throughout their stay.

During this time, she helped some people informally and came to the realization that it is a long and complicated process for foreigners who are trying to navigate the US medical system on their own..

This experience inspired her to create a service to assist people by simplifying and expediting this bureaucratic process..

Silvia’s work is non-profit. All of the proceeds from USAppointment are donated to ITACI, Instituto de Tratamento de Câncer Infantil.



Dr. Kalnicki focuses on researching and implementing new technologies in the radiation treatment of cancer, with the aim of enhancing the dose to the tumor target while preserving normal tissues from radiation injury, potentially increasing tumor control and improving quality of life. He pioneered the use of intensity modulated radiation therapy (IMRT), image guided radiation therapy (IGRT), target motion management with 4-D radiation planning, stereotactic body radiation therapy (SBRT) and functional tumor imaging with PET-CT (positron emission tomography – CAT scan) fusion techniques. His research has implications for radiation treatment planning and techniques used for most clinical situations in radiation oncology, including brain, head and neck, thoracic, upper abdominal and pelvic malignancies. Dr. Kalnicki earned his medical degree at the University of Sao Paulo Medical School in Sao Paulo, Brazil. He completed his residency and fellowship in radiotherapy at Montefiore and Albert Einstein College of Medicine. He came to Montefiore and Einstein from the University of Pittsburgh, School of Medicine, where he was Vice Chairman for Clinical Affairs and Director of Radiation Oncology at the University of Pittsburgh Cancer Institute. Prior to joining the University of Pittsburgh Cancer Institute, Dr. Kalnicki served as Chairman of the Department of Radiation Oncology at Allegheny University of Health Sciences in Pittsburgh. He is a member of many prominent professional societies. He has authored numerous articles and abstracts during his career and is a recipient of several awards, including the Fellowship Award from the American College of Radiation Oncology.

Dr. Shalom Kalnicki is based in New York. His role at USAppointment, as a Medical Consultant, is non-profit. All fees paid on his behalf are donated entirely to a fund that benefits charity cancer patients at Montefiore Einstein Center for Cancer Care.

Full CV, including awards, publications, memberships, academic activities and others

Our Partner


Sansa Health Corp. Sansa Health Corp. provides services to clients before and during their medical appointments in the United States. Based in Boston, the company was formed simultaneously with USAppointment, specifically to provide local services in the US. They will help with the coordination of medical records, exam results and hospital forms, professional medical translation and delivery to the cancer treatment center in order to expedite scheduling the first appointment. Once the appointment(s) have been set up, Sansa will help coordinate suitable accommodations for short/long term.

Charity of choice


ITACI is a public hospital, which is part of the Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da USP. It was formed in December, 2002, with the objective of offering a suitable space, with modern equipment to treat children and adolescents until they are accepted for treatment by the “Instituto da Criança” through the “Onco-Hematologia” service.

Today, ITACI is an important reference all over Brazil for specialized medical treatment of children and adolescents with cancer and other rare blood disorders. The most important differential when compared to other institutions is that ITACI will treat children and young people who have been refused by other public hospitals due to the more advanced stages of their sickness.

The institute has a mission to promote adequate cancer or blood disorder treatment to every child who needs it.

ITACI is the entity that was chosen by Silvia Krakowiak Rosenthal to be the beneficiary of all of her pro bono efforts.


Please fill in the form below if you would like ITACI to send a receipt for your donation.

Banco Santander
Agência 3411
Conta corrente 13000426-3
CNPJ: 00.462.613/0001-40
Fundação Criança
pag seguro