DepartmentOur Team Close [Back to Overview](/departments/pulmonology/pulmonary-hypertension-center)## Explore department Request an Appointment ## Request an Appointment Request an Appointment ##### By Phone For general scheduling or help finding the right provider, call to speak to a member of our care team. ##### Schedule Online If you’ve already seen a provider in this department, you can request a follow-up with them in MyChart. [Schedule With MyChart](https://mychart.bmc.org/) Close Dialog Refer a Patient ## Refer a Patient Refer a Patient Phone: [617.638.7480](tel:617.638.7480) Close Dialog ## Pulmonary Hypertension Center # Our Team Explore Pulmonary Hypertension Center ### Pulmonary, Allergy, Sleep and Critical Care Medicine Providers ### Elizabeth S. Klings, MD ![](https://assets.bmc.org/transform/408f3846-0617-4413-b63e-4aa09ffdbfc6/Liz-Klings-2x3?io=transform:fill,width:333,height:500&format=jpg) Pulmonologist; Director, Pulmonary Hypertension Center; Director of Clinical Research, Center of Excellence in Sickle Cell Disease ### Main Location BMC, Shapiro Center [725 Albany St. 9th Floor, Suite 9B Boston, MA 02118](https://www.google.com/maps/search/?q=725+Albany+St.%2C+Boston%2C+MA+02118) ### Contact [617.638.7480](tel:617.638.7480) Request an Appointment ## Request an Appointment Request an Appointment ### Existing Patients Online: [Schedule With MyChart](https://mychart.bmc.org/)By phone: [Call 617.638.7480](tel:617.638.7480) ### New Patients By phone: [Call 617.638.7480](tel:617.638.7480) Close Dialog Refer a Patient ## Refer a Patient Refer a Patient Fax: 617.638.7486 Phone: [617.638.7480](tel:617.638.7480) Close Dialog [See Full Bio](/about-us/directory/doctor/elizabeth-s-klings-md) ### Justin K. Lui, MD ![Placeholder image for doctor](/themes/custom/bmc_base_theme/assets/images/placeholders/headshoticon-v2.svg) MD ### Main Location [725 Albany Street Shapiro 9B Boston, MA 02118](https://www.google.com/maps/search/?q=725+Albany+Street++Shapiro+9B+Boston%2C+MA+02118) ### Contact [617.638.7480](tel:617.638.7480) Request an Appointment ## Request an Appointment Request an Appointment ### Existing Patients Online: [Schedule With MyChart](https://mychart.bmc.org/)By phone: [Call 617.638.7480](tel:617.638.7480) ### New Patients By phone: [Call 617.638.7480](tel:617.638.7480) Close Dialog Refer a Patient ## Refer a Patient Refer a Patient Phone: [617.638.7480](tel:617.638.7480) Close Dialog [See Full Bio](/about-us/directory/doctor/justin-k-lui-md) ### Hector A. Marquez, MD ![](https://assets.bmc.org/transform/b8710674-19d9-4e85-908d-66fc05726fb5/Marquez-Hector?io=transform:fill,width:333,height:500&format=jpg) Pulmonologist ### Main Location [725 Albany Street 9th Floor, Suite 9B](https://www.google.com/maps/search/?q=725+Albany+Street%3Cbr%3E9th+Floor%2C+Suite+9B) ### Contact [617.638.7480](tel:617.638.7480) Request an Appointment ## Request an Appointment Request an Appointment ### Existing Patients Online: [Schedule With MyChart](https://mychart.bmc.org/)By phone: [Call 617.638.7480](tel:617.638.7480) ### New Patients By phone: [Call 617.638.7480](tel:617.638.7480) Close Dialog Refer a Patient ## Refer a Patient Refer a Patient Fax: +16176387486 Phone: [617.638.7480](tel:617.638.7480) Close Dialog [See Full Bio](/about-us/directory/doctor/hector-marquez-md) #### Additional Team Members - Dina Riley, RN ### Cardiology Providers ### Nir Ayalon, MD ![](https://assets.bmc.org/transform/03b81ca4-e52f-4540-9318-55896c3c4d30/Ayalon-Nir?io=transform:fill,width:333,height:500&format=jpg) Invasive Cardiology, Co-Director, Hemodynamics Laboratory ### Main Location [732 Harrison Ave Boston, MA 02118](https://www.google.com/maps/search/?q=732+Harrison+Ave+Boston%2C+MA+02118) ### Contact [617.638.7490](tel:617.638.7490) Request an Appointment ## Request an Appointment Request an Appointment ### Existing Patients Online: [Schedule With MyChart](https://mychart.bmc.org/)By phone: [Call 617.638.7490](tel:617.638.7490) ### New Patients By phone: [Call 617.638.7490](tel:617.638.7490) Close Dialog Refer a Patient ## Refer a Patient Refer a Patient Fax: +16174148742 Phone: [617.638.7490](tel:617.638.7490) Close Dialog [See Full Bio](/about-us/directory/doctor/nir-ayalon-md) ### Ludwine D. Paul, MSN, ACNP-BC, AACC ![](https://assets.bmc.org/transform/387bbfd8-0342-4113-b46f-3784ab30f140/Ludwine-D-Paul?io=transform:fill,width:333,height:500&format=jpg) Lead Nurse Practitioner - Heart Failure and CardioMEMS Program ### Main Location 732 Harrison Avenue 3rd Floor Boston, MA 02118 ### Contact [617.638.8060](tel:617.638.8060) Request an Appointment ## Request an Appointment Request an Appointment ### Existing Patients Online: [Schedule With MyChart](https://mychart.bmc.org/)By phone: [Call 617.638.8060](tel:617.638.8060) ### New Patients By phone: [Call 617.638.8060](tel:617.638.8060) Close Dialog Refer a Patient ## Refer a Patient Refer a Patient Phone: [617.638.8060](tel:617.638.8060) Close Dialog [See Full Bio](/about-us/directory/doctor/ludwine-d-paul-msn-acnp-bc-aacc)