Deana Tammara-Cohen

Deana has been with Siromed since September of 2017 and is responsible for Managed Care, including contract negotiations, education and strategic planning related to third party payers. Prior to joining Siromed, Deana served as the Vice President of Managed Care with Sheridan Healthcare prior to and through its merger with AMSURG and later Envision Health. During her time at Sheridan Deana oversaw third party payer negotiations and integration. Deana has over 20 years of healthcare experience in office and hospital-based practice management including managed care contracting, practice integration and payer/provider relations.

Alan Cooper

Vice President


A wonderful serenity has taken possession of my entire soul, like these sweet mornings of spring which I enjoy with my whole heart. I am alone, and feel the charm of existence in this spot, which was created for the bliss of souls like mine. I am so happy, my dear friend, so absorbed in the exquisite sense of mere tranquil existence, that I neglect my talents. I should be incapable of drawing a single stroke at the present moment. I throw myself down among the tall grass by the trickling stream; and, as I lie close to the earth. Thousand unknown plants are noticed by me. When I hear the buzz of the little world among the stalks, and grow familiar with the countless.


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Massachusetts Institute of Technology, Computer Engineering


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