Katharine Kim Brewster, MD

Accepting New Patients


After graduating from Stanford University and Columbia University College of Physicians and Surgeons, Dr. Brewster was trained in psychiatry at Columbia and served as chief resident in her final year. Following residency, she completed the Geriatric Psychiatry Clinical Fellowship at Columbia. Afterwards, she completed the National Institutes of Health T32 Late-Life Neuropsychiatry Research Fellowship at Columbia. Her research has focused on understanding the neuropsychiatric consequences of age-related hearing loss, including its links to late-life depression and cognitive decline. She has received awards including the American Associate of Geriatric Psychiatry Member-in-Training Research Award (2021), the Moynihan Clinical Research Fellowship (2019), the Dr. Sandy Glassman Award for Excellence in Research (2019), and the Dr. Barbara Liskin Award (2015). At present, she serves as Co-Director on the Columbia Geriatric Psychiatry Fellowship. 

Areas of Expertise / Conditions Treated

  • Dementia
  • Geriatrics

Academic Appointments

  • Assistant Attending

Hospital Affiliations

  • NewYork-Presbyterian Hudson Valley Hospital
  • NewYork-Presbyterian / Columbia University Irving Medical Center


  • Female

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Insurance Accepted

Affinity Health Plan

  • Beacon Health - Behavioral Health

Amida Care

  • Beacon Health - Behavioral Health

Coventry Health Care

  • Coventry Health Care

Local 1199

  • Local 1199

MagnaCare (National)

  • MagnaCare


  • Railroad
  • Traditional Medicare


  • Multiplan


  • Special Needs


  • Behavioral Health
  • Behavioral Health (Columbia University Employee Plan)
  • Medicaid Behavioral Health
  • Medicare Behavioral Health

*Please contact the provider’s office directly to verify that your particular insurance is accepted.

Credentials & Experience

Education & Training

  • Stanford University
  • Columbia University College of Physicians and Surgeons
  • Residency: Columbia University / New York State Psychiatric Institute
  • Fellowship: Columbia University


Selected Publications

Brewster KK, Deal JA, Lin FR, et al. Considering hearing loss as a modifiable risk factor for dementia. Expert Rev Neurother 2022;22(9):805-813.


Brewster KK, Golub JS, Rutherford BR. Neural circuits and behavioral pathways linking hearing loss to affective dysregulation in older adults. Nat Aging 2021;1:422–429.


Brewster KK, Hu MC, Zilcha-Mano S, et al. Age-related hearing loss, late-life depression, and risk for incident dementia in older adults. J Gerontol A Biol Sci Med Sci 2021;76(5):827-834


Brewster KK, CJ Choi, He X, et al. Hearing rehabilitative treatment for older adults with comorbid hearing loss and depression: effects on depressive symptoms and executive function. Am J Geriatr Psychiatr 2021; S1064-7481(21)00434-6.


Brewster KK, Ciarleglio A, Brown PJ, et al. Age-related hearing loss and its association with depression in later life. Am J Geriatr Psychiatry 2018; 26:788-796.


Rutherford BR, Brewster K, Golub JS, et al. Sensation and psychiatry: linking age-related hearing loss to depression and cognitive decline. Am J Psychiatry 2018;175:215-224