About Us


Hilary C Siebens MD, Principal, has many years of hands-on responsibility for the direct care of patients. Some had few medical problems. However, many have been complex. Many have had disabilities. In the process of seeing her patients, she was forced to create an efficient way to guide her thinking about each patient.

She created a 4-domain model, each domain looking at a patient from a different perspective. This was crucial to:

  • Get a clearer picture of what was going on,
  • Identify actionable problems,
  • Create viable treatment plans,
  • Communicate with referring physicians, other team members, and insurers and
  • Track the status of treatment over space and time (days, weeks, months, years).

She based this work on her own experiences, the medical literature, and feedback from patients, their families and her colleagues.

This approach, the Siebens Domain Management Model (SDMM), has now been successfully disseminated into several clinical applications. More recently colleagues and she have researched the model. Studies of one specific application, use in rehabilitation team conferences, is among the first to provide evidence for improved clinical outcomes while saving on resources.

For patients, this approach is extended with a personal Siebens Health Care Notebook. Patients add their essential health information using the same 4 domains. The Notebook helps patients, and/or their care partners, self-manage. Another benefit is helping patient to be prepared for better interactions with their multiple health care providers. This Notebook is now used in two clinical programs and the updated version will be available soon.

Education and Training
Dr. Hilary Siebens is board certified as a medical doctor and is the founder of Siebens Patient Care Communications. Prior to attending medical school she received her undergraduate degree at Yale College.  She received her medical degree from Harvard Medical School.  Following medical school, she completed her internal medicine residency at the Johns Hopkins Hospital, a geriatric medicine fellowship at Harvard, and her physical medicine and rehabilitation residency at Tufts University/New England Medical Center.

Dr. Siebens' clinical attending physician appointments include:

  • Cedars-Sinai Medical Center, Los Angeles, CA
  • Spaulding Rehabilitation Hospital, Boston, MA
  • Massachusetts General Hospital, Boston, MA
  • University of California Irvine Medical Center, Irvine, CA
  • Veterans Affairs Health System, West Los Angeles and Long Beach, CA

Academic Appointments

  • Associate Clinical Professor, UCLA
  • Lecturer, Harvard Medical School
  • Professor of Medicine, UCI
  • Professor of Physical Medicine and Rehabilitation (PM&R), UCI
  • Visiting Professor, PM&R, University of Virginia

Founding Medical Directorships

  • Skilled Nursing and Assessment Center, Cedars-Sinai Medical Center, Los Angeles, CA
  • MEEI Rehabilitation Unit, Spaulding Rehabilitation Hospital, Boston, MA
  • UCI SeniorHealth Center, University of Irvine Medical Center, Irvine, CA

National Expert Panels

  • Post Stroke Rehabilitation Practice Guidelines (1995)
  • CARF stroke rehab standards – contributing to creation of new CARF portable profile standard, now focused on person served’s personal health information (2004)

Research and References