Meet Our Team

DENTAL
PROFESSIONALS

We are a community of dental professionals dedicated to elevating patient care through collaboration. By referring to Shreveport Periodontics, you’re joining a network that values quality, compassion, and the continuous pursuit of excellence in dental health.

Let’s work together to achieve the best for your patients. Reach out today to learn more about how we can support each other in providing exceptional dental care.

Dr. Jack O’Neill

A native of Savannah, GA, Dr. Jack O’Neill moved to northwest Louisiana in 2018 to be near his wife’s family. While he is proud of his Georgia roots, he is excited to now call Shreveport home.

Dr. O’Neill graduated from the University of Georgia and earned his dental degree from the Medical College of Georgia (MCG) in Augusta. Following dental school, he completed three years of specialty training to earn his Certificate in periodontics and implant dentistry. He received multiple awards and scholarships during his dental training, and was very active in national dental leadership organizations.

Dr. O’Neill is a Diplomate of the American Board of Periodontology and the International Congress of Oral Implantologists, and is past Adjunct Clinical faculty at the MCG dental school in the Department of Periodontics.

Dr. O’Neill holds special interests in dental implants, soft tissue grafting, and treatment of gum disease with advanced laser therapies. He completes numerous hours of continuing education each year, he is the founder of the Savannah Spear Study Club, and is a current member and advisor for the Dental Advancement Seattle Study Club in Shreveport.

He is a proud husband to Jessica and father to GiGi (9) and Clary (4). They are members of First Methodist Church Shreveport, and when not spending time with family, Dr. O’Neill enjoys golf, travel, and being outdoors.

Dr. Jack O’Neill

Dr. Blaine G. Calahan

Dr. Calahan is a native of Shreveport, LA. He was born the son of a Caddo Parish school teacher and a Veterinarian. Dr. Calahan attended school in the Caddo Parish school system and graduated from Caddo Magnet High School in 2004. During his youth, Dr. Calahan was a member of the Boy Scouts, Troop 18 in Betty Virginia Park where he earned his Eagle Scout Award in 2004. Dr. Calahan attributes his time in the Boy Scouts for his continued love of being outside, staying active and doing hard things.

Dr. Calahan graduated from Louisiana Tech University with a degree in Biology and earned his dental degree from the Louisiana State University School of Dentistry in New Orleans. While at dental school, Dr. Calahan found an interest in Periodontics as the dental specialty which was rooted in
preservation of the natural dentition and the mouth’s relationship to the whole body. After graduating from dental school, he completed a post graduate residency program at the University of Texas at San Antonio where he earned his certificate as a specialist in Periodontology and Dental Implantology.

While attending his residency program, Dr. Calahan earned a Masters in Science for his research project titled: Histologic Evaluation of Wound Healing following Ridge Preservation with Cortical, Cancellous and Combined Cortico-Cancellous Freeze-Dried Bone Allograft, A Randomized Controlled Trial.

Dr. Blaine G. Calahan

Dr. Calahan was awarded the John F. Prichard Prize for Graduate Research by the Southwest Society of Periodontists in 2017 for the paper’s contributions to the field of periodontal research. The purpose of the study was to assess the outcomes of different types of bone graft materials used in a procedure called ridge preservation whereby a bone graft is used to maintain the width
and height of the jaw bone following a dental extraction. Maintenance of this width and height is critical for optimal outcomes for the replacement of teeth with dental implants.

Dr. Calahan is active in the local, regional and national dental communities with his memberships as a Diplomate of the American Board of Periodontology, the Southwest Society of Periodontists, the Northwest Louisiana Dental Association. Dr. Calahan is a past president of the Northwest Louisiana Dental Association. He works hard to stay at the leading edge of contemporary periodontal and dental implant care. He often travels to seek the highest quality continuing education events each year and is also an advisor to the local Seattle Study Club affiliate known as the Dental Advancement and Leadership Study Club.

Dr. Calahan and his wife met while attending Caddo Magnet High School. They are proud to share the same hobby, raising their four children!

Dr. Amber Kreko

Dr. Amber Kreko

Dr. Amber Kreko was born and raised in south Louisiana right outside of Baton Rouge. So of course, she is a die-hard LSU fan. GEAUX TIGERS!

Dr. Kreko graduated from Southeastern Louisiana University with a Bachelor’s degree in Biology. She then attended LSU School of Dentistry for her dental hygiene degree. She worked in private practice for 6 years as a dental hygienist prior to returning to LSU to pursue her dental degree where she also received an honors in teaching. With a passion for treating periodontal disease already instilled in her from dental hygiene, she pursued a residency in periodontics, again at LSU, earning her Master’s degree.

Dr. Kreko has been involved in multiple dental communities beginning in dental hygiene school where she was the District VI Student Delegate and later served the Louisiana Dental Hygienists’ Association as Vice President while in private practice. She served in multiple positions in dental school in the American Student Dental Association, Interprofessional Student Alliance, and Student Professionalism and Ethics Association. She is an active member of the American Academy of Periodontology, Southwest Society of Periodontist, and American Dental Association.

Dr. Kreko married her wonderful husband, Michael, in Disney World which is one of their favorite places to travel. They have a son and two dogs (a catahoula and a Scottish terrier). In her spare time, Dr. Kreko enjoys reading, doing puzzles, and traveling.

Our Staff

Shreveport Periodontics

Administrative Team

Robin, Rhiannon, April, Grace, Brenda, Hannah, Beth, Brooklyn, and Amy

Shreveport periodontics

Clinical Team

Abby, Ashley, Amiee, Linda, Amber, Kristen, and Barbara

Shreveport Periodontics

Hygiene Team

Becky, BreAnna, Wendy, Rachel, and Cindy