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COVID-19 Information and Updates

COVID-19 booster vaccines are now available for adults who received the Pfizer vaccine and are age 65 and older; at higher risk of severe COVID-19 due to certain medical conditions; or at higher risk of exposure to COVID-19. Check eligibility and criteria here. The third dose of COVID-19 vaccine for moderately to severely immunocompromised patients is also available. Schedule online here.

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I am extremely excited to be a part of the CareMount team as a Gastroenterologist and Hepatologist. I grew up in Queens, NY and have lived in and around New Haven, CT for the past 7 years as I completed my medical training. I take great pride in using empathy as a powerful tool for getting to know and treat my patients. It is important for me to take the time to get to know each individual so that I can truly appreciate how their medical illness prevents them from living the life they desire, and to tailor my workup and treatment plans accordingly. I hope to utilize the knowledge that I have learned from taking care of extremely complex patients at Yale-New Haven Hospital to provide the highest quality care to my patients at CareMount. My special interests within the field of Gastroenterology and Hepatology include Colon Cancer screening and prevention, Irritable Bowel Syndrome, Gut Microbiome Dysbiosis, Clostridium difficile treatment, Esophageal and swallowing disorders, Liver disease, Inflammatory Bowel Disease and Endoscopic Procedures.

I wanted to inform you of a new, promising procedure that I am presently performing – Fecal Microbiota Transplantation (FMT) for Clostridium difficile infection (CDI) when antibiotic treatment is failing. Essentially, FMT is a procedure in which fecal matter, or stool, is collected from a tested donor, mixed with saline or other solution, strained, and placed in a patient, by colonoscopy, sigmoidoscopy, or enema. Still termed as an investigational new therapy by the FDA, very few physicians are trained to perform this procedure and so I am pleased to say we are one of a few medical groups in the country that can make this available to our patients.


Fishkill Westage Campus
600 Westage Business Center Drive
Fishkill, NY 12524-2281


Kingston Campus
1561 Ulster Avenue
Lake Katrine, NY 12449-5410



Awards & Recognition

Castle Connolly Top Doctor: 2021

  • Hudson Valley Magazine: 2021

Dutchess County Regional Chamber of Commerce Forty Under 40 Mover & Shaker Award: 2019

Chief Medical Resident - Yale New Haven Hospital: 2014

Gold Humanism Honor Society - Yale New Haven Hospital: 2013

Magna Cum Laude - Fordham University: 2006
Phi Beta Kappa - Fordham University: 2006
Fordham Club Honor Society - Fordham University: 2006


Undergraduate & Graduate

Fordham University: 2006

Medical Education

Stony Brook University: 2010


Yale-New Haven Hospital: 2013
Yale-New Haven Hospital, Chief Resident: 2014


Yale School of Medicine: 2017

Board Certifications

American Board of Internal Medicine: 2013
American Board of Gastroenterology: 2017


Hospital Affiliations

Vassar Brothers Medical Center
Mid Hudson Regional Hospital of Westchester Medical Center


Hindi, Urdu, and Punjabi


Kumar, V., Grant, T., Nagar, A. (2013) Adherence to Quality of Care Measures in Patients with Inflammatory Bowel Disease May Not Improve Patient Outcomes. Digestive Disease Week. Orlando, FL 2013

Kumar, V. (2013). Acute Diarrhea. In Yale Office-based Medicine Curriculum, eds. Julie R Rosenbaum, Seonaid Hay, Laura Whitman, and Mary Warner, 8th edition. New Haven, CT: Yale University

Kumar, V., Chaptini, L., (2013). Acute Lower G.I. Bleed. In Yale Inpatient Medicine Curriculum, editor Dana Dunne. New Haven, CT: Yale University

Mansoor S., Kumar, V., Aslanian, H., (2015). Stercoral Colitis. American Journal of Gastroenterology. Image of the month. Dec;110(12):1651

Mansoor MS., Kumar V., Feuerstadt, P. Men with CDI Have Increased Co-Morbidities and Worsened Long-Term Outcome Compared with Women. Digestive Disease Week, San Diego, CA 2016

Zhou, E., Kumar, V., Mansoor, MS., Feuerstadt, P. Pseudomembranes Are Infrequently Seen in Patients Undergoing Fecal Microbiota Transplant (FMT) for Recurrent C. difficile Infection (CDI) . ACG, Las Vegas 2016

Kumar, V., Zhou, E., Mansoor, MS., Feuerstadt, P. Treatment of Initial Recurrence of C. Difficile Infection (CDI) with Vancomycin May Not Prevent Eventual Need for Fecal Microbial Transplantation (FMT). ACG, Las Vegas 2016

Afinogenova, Y., Kumar, V., Mansoor, MS., Feuerstadt, P. 5-Aminosalicylic Acid (5-ASA) Usage During C. Difficile Infection (CDI) is Associated with Decreased ICU Admission and Improved Long-Term Outcomes. ACG, Las Vegas 2016

Viera, S., Kumar, V., Kriegel, M. A Gut Commensal Breaches Both Gut Lymphatic and Vascular Barriers to Drive Systemic Autoimmunity. Keystone Symposia: Microbiome in Health and Disease. Colorado, 2017

Viera, S., Kumar, V., Kriegel, M. “Spontaneous Translocation of a Gut Pathobiont Drives Autoimmunity that is Preventable by Vaccination” - submitted, pending review. Science

Kumar V, Zhou E, Afinogenova Y, Mansoor S, Sharma P and Feuerstadt P. Serum Derived Bovine Immunoglobulin (SBI) is Safe and Well Tolerated in Patients Undergoing Fecal Microbiota Transplant (FMT) for Recurrent C. difficile Infection (RCDI). ACG, Orlando 2017

Zhou E, Kumar V, Afinogenova Y, Mansoor S, Sharma P and Feuerstadt P. Serum Derived Bovine Immunoglobulin (EnteraGam®, SBI) is Safe and Well Tolerated in Patients Undergoing Fecal Microbiota Transplant (FMT) for Recurrent C. difficile Infection (RCDI). ACG, Orlando 2017

Sharma P, Kumar V, Mansoor S, Feuerstadt P. Recurrence of C. difficile Infection (CDI) in Patients With Chronic Kidney Disease (CKD) on Hemodialysis Treated With Metronidazole, Vancomycin or Combination Therapy. ACG, Orlando 201