Medical Oncology & Hematology
Dr. Cyriac earned his medical degree from Georgetown University. He completed internship and residency training in Internal Medicine at Georgetown University Hospital followed by Hematology and Oncology Fellowship at New York University. He is board certified in both medical oncology and hematology.
Throughout his training Dr. Cyriac has been involved in research directed toward bringing new, more effective treatments to patients. He is a co-author of several peer-reviewed publications. He has worked at the National Institutes of Health performing drug discovery research and his is a co-owner of a US patent on several investigational drugs. During his fellowship, Dr. Cyriac was involved in clinical trials research developing better lung cancer treatments using immunotherapy.
His clinical practice spans the entire spectrum of oncologic and hematologic disorders. He has particular expertise in lung, prostate, and colorectal cancers, lymphoma and benign hematology. Dr. Cyriac has worked exhaustively throughout his medical career to provide the highest quality care and making sure his patients are heard. He is dedicated to applying cutting-edge cancer therapies, specifically immunotherapy and targeted therapy, and tailoring treatment to each individual aiming for the best possible outcome.
| Eastern Long Island Hospital |
| Good Samaritan Medical Center |
| John T Mather Memorial Hospital |
| Peconic Bay Medical Center |
| Southampton Hospital |
| Southside Hospital |
| St. Catherine Of Siena Medical Center |
| St. Charles Hospital |
| University Hospital at Stony Brook |
Patient Reviews
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"Dr Cyriac is an awesome doctor and he takes as much time as you need. Explains everything and is deeply sincere, friendly
and down to earth. He is the Best! All my relatives go to him and love him as well 🩷"
from Donna 5.0 Stars - (2025-11-13) -
"I have been a part of this practice for 25 years. I had seen Dr. Theo until he retired. I am now seeing Dr. Cyriac. Dr. cyriac Is thorough and personable. The office staff are nice and personable The phlebotomist are caring and kind."
from Donna 5.0 Stars - (2025-11-13) -
"Always a pleasant experience."
from Patricia 5.0 Stars - (2025-11-11) -
"Very attentive and thorough. Did not make me feel rushed and responded thoughtfully to all of our questions."
from Gary 5.0 Stars - (2025-11-07) -
"Exceptional nurses and Dr. Cyriac is the best. Very knowledgeable and dedicated to helping his patients."
from Maria 5.0 Stars - (2025-11-06) -
"Top notch ALWAYS with Dr. Cyriac and his team. Up-to-date impressive knowledge from him. Very transparent. Never dismissive or rushed. Great listener, takes patient case details into careful consideration. Dr. Cyriac took the time to explain a wealth of information to us, so patiently, personal and respectful. Thank goodness we decided to stick with he and NY Blood and cancer center. Esp coming from a very aggressive and questionable consult from stonybrook hospital and oncology. World of difference."
from Andrea 5.0 Stars - (2025-11-04) -
"Excellent doctor. Helped save my life when he treated me for a DVT."
from Karl 5.0 Stars - (2025-10-29) -
"Dr. Cyriac is an awesome and amazing hematologist. Dr. Cyriac has a wonderful and amazing bed side manner. Dr. Cyriac also helps me with non hematology issues. Dr. Cyriac is very patient. If anyone needs a hematologist, I would recommend Dr. Cyriac. Dr. Cyriac explains about my blood work results in a way that I am able to understand very well."
from Lauren 5.0 Stars - (2025-10-25) -
"I always am taken food care of front desk n shot room n my dr Cyriac"
from diane 5.0 Stars - (2025-10-22) -
"It was a Pleasant experience and clean facility"
from victor 5.0 Stars - (2025-10-09)