Sleep Medicine Fellowship | Pulmonary and Critical Care Medicine | Department of Internal Medicine | UC Davis Health

Fellowship Programs

Sleep Medicine Fellowship

Researchers looking at an image of a brain scan on a screen.

Thank you for your interest in the Sleep Medicine Fellowship at the UC Davis Medical Center. We offer a one (1) year, ACGME-accredited fellowship program designed to produce skilled sleep medicine clinicians, teachers, and investigators through our interdisciplinary approach. We accept one (1) fellow each year. Upon graduating, our fellows will have developed the necessary skills to practice clinical sleep medicine and/or pursue a future career in academic medicine. Our program trains physicians who come from different disciplines in all aspects of sleep medicine given our diverse patient population with a wide range of sleeping disorders. As a multidisciplinary program, our fellowship faculty consist of specialists from pulmonary medicine, neurology, dentistry, psychiatry, pediatrics, otolaryngology, and dentistry.

In addition to the diverse faculty, the UC Davis Medical Center's affiliation with several other facilities, hospitals, and universities provide fellows a rich sources of electives and experience with various health care systems, regulations, and business aspects involved in patient care. Fellows will also have an opportunity to conduct research projects during their one-year training period.

Since the inception of the Sleep Medicine Fellowship program in 2007, 100% of our fellows have passed the Sleep Medicine Boards and have had a 100% acceptance rate when submitting their abstracts, posters, and manuscripts.

2025 Fellows

Kaveer Greywal, M.D.
Medical School: Ross School of Medicine
Residency: LewisGale Medical Center

Katyayini Aribindi, M.D.
Medical School: University of Miami
Residency: University of California, Davis

About Us

Division of Pulmonary, Critical Care, and Sleep Medicine

Our Division was established in 1968. Since that time, its programs have been nationally recognized for their excellence in patient care, medical education, basic and clinical research, and service to the community. The mission statement of the Division closely reflects that of UC Davis Health.    

To heal, to teach, to discover and to serve 

  • Patient care: To provide access to the latest advances in pulmonary, critical care and sleep medicine and consistently deliver high-quality care with competence, respect, dignity and compassion. 
  • Education: To provide current and future health care professionals with the knowledge and skills in pulmonary, critical care and sleep medicine to provide exemplary patient care and to foster and support continued learning throughout their careers. 
  • Research: To advance the understanding of pulmonary, critical care and sleep medicine through basic and applied research and translation of these discoveries into effective approaches to disease prevention, diagnosis and treatment.
  • Service: To provide leadership and promote collaborative relationships with the public and private sectors to build a healthier community and region, with particular regard to pulmonary, critical care and sleep medicine. 

Program Aims: 

  • To recruit highly competitive trainees from diverse specialty training backgrounds to become superb clinicians capable of providing expertise in Sleep Medicine to a diverse patient population across the full spectrum of sleep disorders.
  • To prepare graduates to be educators, innovators, and leaders in Sleep Medicine.
  • To foster physician wellness by creating a supportive environment that promotes diversity and tolerance.

The Division is committed to the UC Davis Principles of Community:

We recognize that to create an inclusive and intellectually vibrant community, we must understand and value both our individual differences and our common ground. The diversity of the people of California has been the source of innovative ideas and creative accomplishments throughout the state’s history into the present.  Diversity – a  defining feature of California’s past, present, and future – refers to the variety of personal experiences, values and worldviews that arise from differences of culture and circumstance.

Program Leadership

Kimberly A. Hardin, M.D., M.S., M.A.S.
Program Director  

Lina Villegas
Program Administrator

University of California Davis
Division of Pulmonary, Critical Care and Sleep Medicine
4150 V Street, Suite 3400
Sacramento, CA 95817

Fax 916-734-7924

For verifications, please send all verification requests to We do not require payment for verifications.