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Our Center and Clinical Team

Specialists in Gastroenterology, Travel Medicine, and Infectious Disease


Our clinical team provides advanced diagnostics, treatments, and specialized services, including endoscopic procedures, colon cancer screening, in-house lab testing, pre & post travel evaluations, and primary care. We also offer travel medicine, vaccinations, house calls, and international referrals, ensuring seamless medical coordination wherever you are.

Bradley A. Connor, M.D.


For those in Manhattan and the surrounding areas of New York, Bradley A. Connor, M.D., provides specialized care in gastroenterology and tropical medicine from a state-of-the-art facility in Midtown East. A world-renowned expert, Dr. Connor focuses on chronic gastrointestinal disorders in returned travelers, gastrointestinal infectious diseases, and emerging infectious diseases.

Dr. Connor specializes in microbial disorders of the gastrointestinal tract, including those related to the microbiome, antibiotic overuse, post-infectious irritable bowel syndrome (PI-IBS), small intestinal bacterial overgrowth (SIBO), and Helicobacter pylori infection.

He serves as a Clinical Professor of Medicine at Weill Cornell Medical College and an Attending Physician at NewYork-Presbyterian Hospital – Cornell Campus. Dr. Connor is the founder and Medical Director of the New York Center for Travel and Tropical Medicine, a facility dedicated to patient care, teaching, and research in travel and tropical medicine. Additionally, he is the New York City Site Director for GeoSentinel, the Centers for Disease Control and Prevention’s (CDC) Emerging Infectious Disease network.

With over thirty five years in private practice, Dr. Connor is also a founding member and former co-director of Carnegie Hill Endoscopy, an ambulatory endoscopy center where he provides colon cancer prevention through colonoscopy, as well as treatment for gastroesophageal reflux disease, peptic ulcer disease, Barrett’s esophagitis, and unexplained abdominal pain. He has extensive experience in clinical research, having conducted clinical trials in Kathmandu, Nepal, and Hanoi, Vietnam. Widely published in gastroenterology and travel medicine, he has authored over 200 peer-reviewed publications and is the editor of Travel Medicine, the standard textbook in the field, now in its fourth edition.

A past president of the International Society of Travel Medicine (ISTM), Dr. Connor has served as an advisor to the White House Medical Unit since 1999 and as an external consultant to the CDC’s Division of Quarantine and Global Migration. During the COVID-19 pandemic, he was actively involved in testing and treating SARS-CoV-2 patients and advising major national and international corporations on pandemic response. He serves as a medical advisor to the U.S. Olympic Swim Team and has participated in the World Health Organization (WHO) Task Force on Travel Medicine and Malaria Prevention. Dr. Connor is a Fellow of the American Gastroenterological Association (AGA-F) and the Infectious Disease Society of America (FIDSA) and has been awarded Fellowship in the Royal College of Physicians and Surgeons (Glasgow) (FFTM, FRCPS).

Marina Rogova, N.P.


Marina Rogova is a board certified Family Nurse Practitioner in the practice of Bradley A. Connor, M.D. and the New York Center for Travel and Tropical Medicine. She has been Clinical Director of the Practice since 2017 and Medical Coordinator of Travel Health Medical, PC, the WHO-certified Travel Medicine Clinic, which has been operational since 1986. Marina spearheaded the COVID-19 PCR testing program which performed over 25,000 COVID-19 PCR tests at three swabbing centers in 2020 and 2021 and is the Co-Director of the practice’s Infectious Disease Laboratory.

Marina has a Certificate in Travel Health (CTH) and is a member of the International Society of Travel Medicine (ISTM). She is Co-Director of the New York City Site for GeoSentinel, the Emerging Infectious Disease Network of the Centers for Disease Control and Prevention (CDC). She graduated from Medgar Evers College School of Nursing with a Registered Nurse degree. She received a Masters in Nursing from American Sentinel University, and received her FNP degree from Long Island University. Marina continued her training, doing internships in Internal Medicine, Gastroenterology and Tropical Medicine.

Dr. Connor and Marina Rogova

Our Clinical Trials

Previous Trials

  • Pepto-Bismol Study: evaluating Pepto-Bismol for the Prevention of Travelers’ Diarrhea in conjunction with the Centers for Disease Control and Prevention (CDC)

  • Small Intestinal Bacterial Overgrowth (SIBO) Study: use of a novel non-absorbable antibiotic in the treatment of SIBO

  • Use of rectal swabs in the diagnosis of gastrointestinal infectious diseases

Future Trials

  • Novel treatment options for irritable bowel syndrome (IBS-D) and Small Intestinal Bacterial Overgrowth (SIBO)

  • Gastrointestinal Microbiome Sequencing and Analysis in Unexplained Gastrointestinal Disease

*Please select the study subject that interests you and contact our office at admin@connormd.com to find out if you are eligible to participate in a clinical trial.

Cutting-Edge Diagnostics

Precision testing with same-day results

PCR test

Our in-office lab is the only facility in New York offering same-day PCR results for gastrointestinal and respiratory specimens—often available within hours.

We use the BioFire FilmArray GI Panel to test for 22 of the most common pathogens causing diarrhea and stomach distress, available to our patients and those referred by outside providers. We also offer gastric alimetry, a noninvasive technology that maps gastric function to help diagnose disorders like gastroparesis and functional dyspepsia.

We perform a full range of endoscopic procedures, including colonoscopy, flexible sigmoidoscopy, and upper endoscopy (EGD), using high-resolution imaging to examine the GI tract with clarity and precision.

Travel Medicine & Vaccination Clinic

Yellow Fever Vaccine

Personalized protection before, during, and after your trip

Our travel clinic provides comprehensive care for international travelers, from routine vaccinations to region-specific disease prevention. Whether you're preparing for travel, currently abroad, or returning home, we tailor our recommendations to your itinerary, health history, and current global health risks.

We offer pre-travel consultations, a full range of travel vaccines (including yellow fever, typhoid, hepatitis A/B, and more), malaria prevention, and up-to-date COVID and flu guidance. Post-travel evaluations are available for those experiencing symptoms or needing screening after international travel.

  • “Dr. Connor is very thorough and never leaves any unknowns uncovered. Thank you for your attention to detail.”

    — Martin M.

  • “I’ve been a patient of Dr. Connor for over ten years & his diagnostic skills are excellent and he is truly a compassionate doctor.”

    — Vital U.

  • "Dr. Connor is the most professional doctor. The office staff is very professional.”

    — Haydee T.