HAPPI Health Medical Professionals

Medical Staff

Dr. Angelique Andrews                        Dr. Romualdo Diaz


CRNP Danielle Barnes                          CRNP Tracie Morgan 


CRNP Brandi Greeson                         CRNP Meagen Gusmus





Our medical staff at all HAPPI offices are here to provide top-notch health care for our patients. They are happy to help deliver solutions for your health-based needs and give loving care for the entire family. 


Dr. Romualdo Diaz: Dr. Romualdo Diaz is board certified with the American Board of Family Medicine. He completed his residency in Family Medicine at the UAB Huntsville Family Medicine Program. He graduated at the Cebu institute of Medicine in the Philippines. He is married to Leilani and they are blessed with 2 children. He loves spending time with his family during his free time. He loves to play sports like lawn tennis and pingpong. "  

CRNP Meagan Gusmus: Meagan Gusmus is a certified nurse practitioner with the American Nurses Credentialing Center. She completed her BSN at the University of North Alabama and her MSN-FNP at Troy University. She is married to her husband Chris and they enjoy traveling abroad, going to concerts, and spending time at home. She enjoys reading, writing, and cooking in her spare time.

CRNP Brandi Greeson: Brandi Greeson is a certified family nurse practitioner and she received her certification through American Academy of Nurse Practitioners Certification Board. She graduated with her MSN from University of Alabama in Huntsville. She obtained her BSN from University of South Alabama. She lives in Madison. She is married with 3 children. She enjoys spending time with her family, fishing, and traveling.

CRNP Danielle Barnes: Danielle Barnes is a Board Certified Family Nurse Practitioner with the American Association of Nurse Practitioners. She completed her BSN from The University of Alabama at Birmingham and obtained her MSN from Troy University. She currently lives in Huntsville. She is also a published author and enjoys reading, writing, exercising, and spending time with her family.