About Us

Committed to Advancing Digestive Health Through Innovation

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Built on Expertise, Driven by Passion

Guided by Integrity, Committed to Innovation

Dedicated Experts in Digestive Health Research

Our team brings together decades of experience in gastrointestinal research, clinical care, and patient-focused treatment. Together, we are committed to improving the future of digestive health through our passion for science and innovation.

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Dharmendra Verma, M.D.

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Radha Tamerisa, M.D.

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Sara Kelley Thomas

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Diana Franco Corso, M.D.

Smiling female doctor in white coat.

Ami Patel, PA-C

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Karen McEuen, FNP-C

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Jessica Helms, FNP-C

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Chelsea Beiser, PA

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Dana Hong, NP

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Dharmendra Verma, M.D.

Dharmendra Verma, MD completed his residency training in Internal medicine at University of Texas, Houston along with MD Anderson Cancer Center, where subsequently, he received subspecialty fellowship in Gastroenterology, Hepatology, and Nutrition.

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Dr. Radha Tamerisa

Dr. Tamerisa has been a practicing gastroenterologist in the Katy area for over 20 years. She has also been involved in Clinical Research for over a decade. Dr. Tamerisa completed her residency training and fellowship at the University of Texas Medical Branch Hospitals.

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Sara Kelley Thomas

Sara is a Katy native. After completing her bachelor’s degree in science at the University of Oklahoma, she returned to Houston to complete her master’s in biomedical science from UTHealth at MD Anderson. Sara’s experience includes over 5 years of pre-clinical and translation research before moving to clinical research. 

Title – Clinical Research Manager

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Diana Franco Corso, M.D.

Dr. Franco is board-certified in Internal Medicine and Gastroenterology. She received her medical degree in her native country of Colombia. She completed her internal medicine residency and gastroenterology fellowship at the Mayo Clinic in Arizona. She then went to complete an advanced fellowship in Inflammatory Bowel Diseases in Cleveland Clinic, Ohio. Dr. Franco hopes to focus on gastrointestinal health for women.
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Ami Patel, PA-C

Ami Patel, PA is a native Houstonian, who received her graduate medical training from the University of Texas Healthcare system, with further education and training in gastroenterology & Hepatology subspecialty.
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Karen McEuen, FNP-C

Karen McEuen, MSN, APRN, FNP-C joined Gastro Health & Nutrition in 2023 as a full-time Advance Practice Registered Nurse and is board certified as a Family Nurse Practitioner through the American Association of Nurse Practitioners.
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Jessica Helms, FNP-C

Jessica Helms, MSN, APRN, FNP-C joined Gastro Health & Nutrition in 2021 as a full-time Advanced Practice Registered Nurse and is board certified as a Family Nurse Practitioner through the American Association of Nurse Practitioners.
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Chelsea

Chelsea is a Katy native who received her bachelor’s degree from Baylor University. She then went to receive her Master of Physician Assistant at the University of Texas Medical Branch at Galveston. 

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Dana

Dana has over 10 years of experience in clinical research. She received her BSN at the University of Texas Medical Branch at Galveston and then went on to earn her MSN as a family nurse practitioner from Simmons University in Boston.