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Meet Our Hospitalists

The Hospitalist Service of HealthAlliance Hospital provides a highly skilled team of physicians specially trained in the delivery of inpatient care.

Research shows that hospitalists reduce the length of stay and patient treatment costs. In addition, hospitalists are leaders on several quality-improvement initiatives in key clinical areas, including transitions of care, co-management of patients, reducing hospital-acquired conditions and optimizing the care of patients.

For questions regarding our hospitalist program, please call Practice Manager Crystal Parrella at 845.514.4281.




James Corsones, M.D.

Co-Director of Internal Medicine


Samwel Oyugi, M.D.

Co-Director of Internal Medicine, Geriatrics


Catherine Alcarez, M.D.

Internal Medicine


Mary Benoy, M.D.

Family Medicine


Gina Carena, M.D.

Internal Medicine


Mohammed Hamid, D.O.

Family Medicine


Abdul Khuda, M.D.

Internal Medicine


Majd Loulou, M.D.

Family Medicine


Marilyn Halpin, N.P.

Family Medicine


Michael Kiley, PA-C

General Medicine


Bekoe Ohene-Agyei, PA-C

General Medicine


Oksana Nichols, N.P.

Adult Health


Crystal Parella

Practice Manager