Meet Hilary

Dr. Hilary Siebens is more than an expert physician. She has made it her life’s work to change the face of our health care system, improving outcomes for patients and providers. Her unique experiences and in-depth medical studies helped her develop a creative, groundbreaking, and efficient approach to patient care.

Hilary Siebens with a patient and family in Surma, Ethiopia. Photo courtesy of W. Don McClure Jr.

Hilary Siebens with a patient and family in Surma, Ethiopia. Photo courtesy of W. Don McClure Jr.



During 30 years of hands-on responsibility for the direct care of patients, Dr. Hilary C. Siebens MD, Principal, was compelled to develop an efficient system for guiding her thinking about each patient, from straightforward care to extremely complicated needs.

Dr. Siebens created a model to consider the patient from four crucial perspectives, making it possible to:

  • get a clear picture of overall health

  • identify actionable topics and problems

  • create viable treatment plans

  • communicate with referring physicians, other team members, and insurers

  • track the status of treatment over time

She based this work on personal and professional experiences, medical literature, and feedback from colleagues, patients, and care providers.

The Siebens Domain Management Model™ (SDMM™) has been successfully disseminated through several clinical applications. Studies from use in rehabilitation team conferences provided 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 within the four domains. The Notebook helps patients and/or care partners self-manage and prepare for better interactions with multiple health care providers.

The Siebens Health Care Notebook is currently being researched in two clinical programs.

Education, Training, and Clinical Appointments

Yale College, Biology, Magna Cum Laude with Distinction in Biology
Harvard Medical School
Johns Hopkins Hospital (internal medicine residency)
Harvard Medical School (geriatric medicine fellowship)
Tufts University/New England Medical Center (physical medicine and rehabilitation residency)

Clinical Attending Physician Appointments

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

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Dr. Siebens considers the development and creation of the SDMM her greatest professional achievement. Using it in her own patient care, she received appreciative feedback from patients, their families, physicians, nurses, and other colleagues and administrators. Today the SDMM helps thousands of clinicians take better care of their patients, and supports health care organizations as they improve care quality in today’s complex system. 

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 Senior Health 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 personal health information (2004)


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