Home / Our Doctors
Our Doctors

Dr. Mark M. Anderson

Dr. Mark M. Anderson

Dr. Mark M. Anderson was reared in Tuscaloosa, Alabama where he attended the University of Alabama for his bachelor’s degree, and then UAB for Medical School. From there he completed a Residency in Internal Medicine and Fellowship in Gastroenterology at the Medical University of South Carolina. Dr. Anderson has been practicing Gastroenterology in Montgomery since 1988.

He is married to the former Chris Christenberry, and has three grown children. Dr. Anderson enjoys hunting, golfing and working in his yard. The Andersons are active members of First Baptist Church in Montgomery.

Dr. Nina P. Nelson-Garrett

Dr. Nina P. Nelson-Garrett

Dr. Nina P. Nelson-Garrett spent her formative years in Jackson, Mississippi. She completed a double major in Molecular Biology and Classical Studies at Vanderbilt University. Dr. Garrett went to medical school at the University of Texas Health Sciences Center at Houston. She then completed a Residency in Internal Medicine and Fellowship in Gastroenterology at Emory University in Atlanta in 1995. Following training Dr. Garrett practiced in Little Rock, AR, Jackson, MS and Baltimore, MD. She joined Capital City Gastroenterology in 2007.

Dr. Garrett is married to Rev. C.W. Garrett and they have two grown children. Dr. Garrett is very active in her church. She enjoys traveling with her husband, spending time with family and painting.

Dr. Heather Echols

Dr. Heather Echols

Dr. Echols is a proud, second generation gastroenterologist from Houston, Texas. Two little known facts about her-she has Alabama roots and an identical twin. She earned her Bachelor of Arts degree from Trinity University (San Antonio, TX) in International Studies and Spanish. She went on to earn her Masters of Public Health (M.P.H.) from Boston University.  Upon completion of her M.P.H., she served as a Peace Corps Volunteer in Guatemala where she developed and facilitated health, hygiene and environmental projects in four schools. Following completion of her service, Dr. Echols attended and received her Doctorate of Medicine from Robert Wood Johnson School of Medicine in New Jersey. She completed her internship and residency at Tulane University Health Sciences Center and affiliated hospitals in Internal Medicine. She further trained in Hepatology and Gastroenterology/Hepatology fellowship programs at Loyola University Medical Center in Chicago, IL and the University of Arkansas for Medical Science (2016) in Little Rock, AR, respectively. Dr. Echols joined Capital City Gastroenterology in the fall of 2016.

Dr. Echols enjoys spending time with family, traveling, photography and reading a good book.

Jenny Browning

Jenny Browning, CRNP

Jenny Browning was raised in Dadeville, Alabama. She received her Bachelor of Science in Nursing degree from Auburn University at Montgomery. She worked as a medical-surgical and cardiac nurse before attending the University of South Alabama to obtain her Master of Science in Nursing to become a family nurse practitioner. She worked as a primary care provider before joining Capital City Gastroenterology.

She has two beautiful children with her husband, Patrick. She is currently residing in Pike Road and is a member of the American Academy of Nurse Practitioners. She enjoys attending church, running, and spending time with family and friends. She is thankful to be serving the River Region.

Ashley Morrow

Ashley Morrow, CRNP

Ashley Morrow was raised in Elba, Alabama. She completed her Bachelors of Science in Nursing (RN/BSN) from Troy university. She completed her nursing experience as an emergency room nurse in Dothan, Alabama. She completed her Masters of Science in Nursing focusing in family nurse practitioner (CRNP) also from Troy University. She worked for Hospital Physician Services in Montgomery, Alabama until she joined Capital City Gastroenterology in 2017. She is a member of American Association of Nurse Practitioners and a local member of Advanced Practitioners for the River Region.

Ashley is married, living in Auburn, Alabama, and has two young children. She enjoys time spent at church, spending time with family, friends, and traveling.

Jackie Shumate, CRNP

Jackie Shumate, CRNP

Jackie Shumate is one of our Certified Registered Nurse Practitioners who graduated from Auburn University with her BSN. She continued her education at University of Alabama at Birmingham with her Masters in Nursing becoming a licensed Family Nurse Practitioner. She joined CCG in 2018 after a five year career in Nephrology.

She served in 2019 as “A Woman in Blue” promoting Colon Cancer awareness and is passionate about educating the public regarding colon cancer prevention.

She believes education is key in becoming your best health advocate and encourages open conversation during office visits.

She currently lives on a farm in Union Springs, Alabama with her husband and two precious children. She serves as a youth leader in her church, and is a member of American Academy of Nurse Practitioners. She enjoys running, fishing, hiking, and spending time with friends and family. She is grateful to be apart of the CCG team and for the opportunity to serve the River Region and surrounding communities.

Brittany Smith

Brittany Smith, CRNP

Brittany Smith is one of our Nurse Practitioners who graduated from Auburn University at Montgomery achieving her Bachelor of Science in Nursing. She continued her education at Auburn University by obtaining her master’s in nursing and becoming a Family Nurse Practitioner. She joined Capital City Gastroenterology in 2021, after a two- year career in General Surgery.

Brittany is a member of the American Nurses Association, American Association of Nurse Practitioners, and the River Region Nurse Practitioner Group. In her spare time, she enjoys traveling, hiking, volunteering, along with spending time with her family, friends, and furbaby, Leo.

Brittany lives in Prattville, Alabama, and provides patient-centered care to all her patients within the River Region.