Your NRG care team
U.S. based providers. Personalized care.
Every NRG patient is evaluated and treated by a licensed clinician. Here is who they are and where each is licensed.
Dr. Daniel Bryan, MD
Medical Director
Dr. Daniel Bryan is NRG Clinic's Medical Director and a board-certified anesthesiologist. He sets the lab and treatment protocols for men's TRT, women's hormone therapy, GLP-1 weight loss and peptides, and supervises the clinic's nurse practitioners and physician assistant.
Licensed in Arizona, California, Colorado, Delaware, Florida, Illinois, Kansas, Maryland, North Carolina, Nevada, Ohio, Oregon, Pennsylvania, Tennessee, Texas, Utah, Virginia, Vermont
Alyza Sunny, FNP-C
Family Nurse Practitioner
Alyza is a board-certified family nurse practitioner and NRG Clinic's nurse manager. She treats men and women for TRT, hormone therapy, GLP-1 weight loss and peptides, and trained in hormone dosing through the American Academy of Anti-Aging Medicine.
Licensed in Colorado, Delaware, Florida, Illinois, North Carolina, Ohio, Texas, Vermont
Christina Manis, FNP-BC
Family Nurse Practitioner
Christina is a board-certified family nurse practitioner who has treated NRG patients since 2023 for TRT, women's hormone care, and GLP-1 and peptide programs. She has more than 15 years of nursing experience and seven years coaching strength and conditioning.
Licensed in Arizona, California, Colorado, Nevada
Hannah Tiberi, FNP-C
Family Nurse Practitioner
Hannah is a board-certified family nurse practitioner who treats NRG patients for TRT, women's hormone care, and GLP-1 and peptide programs. She has worked in hormone replacement and medical weight loss since 2018, after seven years as a hospital nurse.
Licensed in Florida, Ohio
Claudia Guzman, PA-C
Physician Assistant
Claudia Guzman is a board-certified physician assistant who has practiced since 2008, mostly in urology and men's health. At NRG she treats men's testosterone therapy, women's hormone care and GLP-1 weight loss.
Licensed in California, Colorado, Florida, Pennsylvania, Texas
Emily Osisek, FNP-BC
Family Nurse Practitioner
Emily is a board-certified family nurse practitioner who came to hormone and weight loss care from the emergency department. At NRG she treats men for TRT, women through menopause, and patients on GLP-1 and peptide programs.
Licensed in Arizona, California, Delaware, Florida, Illinois, Kansas, Maryland, Oregon, Pennsylvania, Tennessee, Utah, Virginia, Vermont
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