Meet Our Doctors

Our Physicians Are Some Of The Best In The Country

Their passion for advancing medicine while providing superior care to our patients is unmatched. Find below our doctors and their profiles.

Meet Our Physicians

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Michelle Welch

Medical Doctor

A native of California, Michelle earned her Bachelor of Science degree from Pepperdine University and attended Albany Medical College in Albany, New York. After earning her Doctor of Medicine degree in 1997, Michelle moved to Texas to complete her Internship and Residency in Internal Medicine at the University of Texas Health Science Center at San Antonio (UTHSCSA). It was there that Michelle developed a deep interest and passion for the field of Endocrinology, due in large part to its prevalence in the community she now called home. This interest led Michelle to complete a fellowship in Endocrinology, Diabetes, and Metabolism at UTHSCSA in 2002, and eventually, she founded her own private practice. Her desire to improve community health and utilize the latest diagnostic modalities and treatments continued to increase, and Michelle became involved in Clinical Research. As her work as a Principal Investigator in research continued, she quickly earned the recognition of her peers for her clinical knowledge and patient-care compassion. She has since been nominated and holds multiple Advisory Board positions. She is a sought-after speaker for major pharmaceutical companies. In her personal life, she enjoys spending time with her family and riding her horse, Kinsman.

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Daniel Katselnik

Medical Doctor

Dr. Daniel Katselnik is a board-certified physician in endocrinology and metabolism. He received his undergraduate degree at Drew University in New Jersey and completed his medical degree, residency, and fellowship at UT Health Science Center in San Antonio. Realizing his passion lies in Endocrinology, he joined the Diabetes and Metabolism Specialists team as a partner in 2012, where he continues to practice. Eager to be more involved in implementing new therapies for his patients and community members, he began participating in clinical research as a Principal and Sub-Investigator at Consano Clinical Research, LLC and has over 7 years of experience in phase 1-4 clinical research. He now holds multiple Advisory Board and Speaking positions within major pharmaceutical companies. In his personal life, Daniel enjoys spending time with his daughters as well as spending time outdoors.

Meet Our Nurse Practitioners

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Sandra Vera Rodriguez


Sandra Vera Rodriguez is a Board-Certified Family Nurse with extensive diabetes experience. She is also Board Certified in Advanced Diabetes Management and is a Certified Diabetes Educator. Sandra is originally from the Rio Grande Valley, where she obtained her Bachelor’s and Master’s of Science in Nursing from the University of Texas Pan-American (UTPA). As a Family Nurse Practitioner, she has practiced Family Medicine, Endocrinology, and in the pharmaceutical industry as a Diabetes Educator. Sandra has always had a passion for education and has often served as a preceptor for Nurse Practitioner students. In 2020, Sandra joined Consano Clinical Research as a bilingual Sub-Investigator.

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Emy Apruzzese


Emy Apruzzese is a Board-Certified Family Nurse Practitioner and a Certified Diabetes Educator with extensive experience in the field of endocrinology. Emy earned both her Bachelor’s and Master's Degrees in Nursing at the UT Health Science Center in Houston, where she graduated Magna Cum Laude. Emy brings with her a passion for improving the lives of her patients with positive treatment and management of myriad Endocrine conditions, leading her to join Consano Clinical Research in 2023 as a Sub-Investigator. A native of Peru, Emy is fluent in Spanish. In her free time, she enjoys traveling, hiking, and cooking, and she loves her two dogs, Yuki and Sassy.

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Julie Rogers


Julie is a Board-Certified Family Nurse Practitioner specializing in Endocrinology. She began her career in health care in the US Army as a combat medic for 5 years. Since then, she has accumulated 21 years of experience as a registered nurse in various areas of patient care. For the past 8 years, she has practiced as a Nurse Practitioner with 7 years of experience in Endocrinology. She has also served as a preceptor for nurse practitioner students. Julie joined the Consano Clinical Research team in 2023 as a Sub-Investigator. In her free time, Julie likes to spend time with her family and friends, especially her grandchildren. She enjoys beating the Texas heat at either the lake, pool, or beach. She also loves live music, football, and baseball.