Plastic Surgery Staff

Kristen Snyder Costa, P.A.-C

Physician Assistant

Kristen Costa, PA-C

Kristen has been with Southeastern Plastic Surgery since it first opened over 20 years ago. She earned her Masters of Physician Assistant Studies at the University of Florida and received her Bachelors in Nursing from Florida State University.

She specializes in facial sculpting, improvement of facial lines and wrinkles, lip enhancement through the use of neuromodulators and injectable fillers, and removal of fat under the chin with Kybella.

Kristen has been selected as a Faculty Member at Allergan Medical Institute – a certified national trainer with Allergan for Botox, injectable fillers and Kybella based on her experience and appropriate use of the products. She has trained dermatologists, plastic surgeons, nurse practitioners, physician assistants, nurses, and other healthcare providers through these educational interventions.

Her high patient volume has advanced Southeastern Plastic Surgery’s practice to the Diamond level with Allergan Partner Privileges, the only one in Tallahassee and the surrounding area. Kristen is also an internationally known speaker in the field of aesthetic injectables.

Kristen is the Treasurer for the Association of Plastic Surgery Physician Assistants. She is a member of the American Society of Plastic Surgeons (ASPS) and has served as the liaison between the ASPS and the American Academy of Physician Assistants (AAPA). She currently holds a seat in the House of Delegates, representing all Plastic Surgery PA’s, within the AAPA. She has been honored as a Distinguished Fellow of the AAPA, a distinction earned by less than 2% of PA’s.  She was the past Secretary for the Florida Academy of Physician Assistants, and she is also a member of Christian Medical and Dental Association. She is currently appointed as a Clinical Assistant Professor (Plastic Surgery) with FSU’s College of Medicine PA Program, where she precepts PA students.

Kristen is licensed in the State of Florida as a Physician Assistant as well as a Registered Nurse.  Prior to becoming a PA, she worked as a nurse in the operating room at Tallahassee Memorial Hospital for four years and became the Neurosurgery Clinical Coordinator. She was the Organ Transplant Coordinator for Tallahassee and also has experience working with the Southeast Tissue Alliance and the North Florida Lions Eye Bank.

She is an active alumni member in her sorority, Alpha Chi Omega, as well as the current finance advisor for the FSU chapter. In addition, she also serves on the Board at Young Actors Theatre and sings in the Lifeteen Band, a contemporary Christian band at Good Shepherd Catholic Church. She currently serves as an At-Large member of the City of Tallahassee’s Independent Ethics Board.  She is a member of Leadership Tallahassee Class XX. And she was honored as Tallahassee’s 25 Women You Need to Know.

e-mail Kristen:
[email protected]


Brittany DeCastro, ARNP

Nurse Practitioner

Brittany DeCastro, ARNP

Brittany joined Southeastern Plastic Surgery in 2017. She began her nursing career in 2012 after graduating from the University of South Florida with her Bachelors degree in Nursing Science. She worked as an Orthopedic Nurse for five years at Tallahassee Memorial Hospital where she enjoyed taking care of many trauma and reconstructive surgical patients. While working on the orthopedic unit, she attended Florida State University full-time to earn her Doctorate in Nursing Practice.  She then transitioned to Southeastern Plastic Surgery where she trained with all three surgeons to perfect her skills in the operating room, hospital and office settings. She earned her Doctorate of Nursing Practice (DNP) degree and graduated at the top of her class in 2018. Brittany was selected by her faculty chair members to present her doctoral research at their annual research symposium. She is licensed by the state of Florida as an Advanced Practice Registered Nurse (Nurse Practitioner) and is an active member of the Florida Nurse Practitioner Network and Tallahassee Council of Advance Practice Nurses.

Brittany works very closely with Dr. DeRosier, Dr. Rosenberg and Dr. Kirbo to manage reconstructive and cosmetic patients in the office, operative and hospital settings. She has a true passion for the management of soft tissue failure and is a valuable asset to this part of the practice. Her day to day responsibilities consist of rounding on all patients in the hospital and rehabilitation facilities, assisting in surgery and in-office procedures, completing pre-op consultations and follow up care. Her expertise in soft tissue failure and the complex management of these patients has increased the accessibility of this specialized care to more patients throughout the region.

Brittany is a proud Tallahassee native and is honored to serve members of her community by providing specialized and quality health care to all. She enjoys spending time with her husband, Kenneth, family and friends, swimming with her dog Daisy, boating, listening to music and crafting.

e-mail Brittany:
[email protected]


Amy Johnson, R.N.

Director of Surgical Services

Amy Johnson, R.N.Amy joined Southeastern Plastic Surgery, P.A. in 2004 with more than 13 years of experience in a variety of healthcare settings, including 10 years in an outpatient surgery setting. She is a graduate of Florida State University in Tallahassee, FL with a Bachelor’s Degree in Nursing.

Under her guidance, the surgery suite was opened in September 2004, providing an onsite setting for a variety of plastic and reconstructive procedures.

Amy enjoys spending quality time with her husband and three children. Her hobbies include singing, traveling and the North Georgia Lake Life.

e-mail Amy:
[email protected]


Rebekah Mayfield

Cosmetic Coordinator

Rebekah Mayfield Cosmetic CoordinatorRebekah joined Southeastern Plastic Surgery, P.A. in the summer of 2007 with more than 8 years of experience in plastic surgery. From your initial cosmetic or reconstructive consultation appointment until the time of your surgery, Rebekah will be your personal liaison between you, the patient, and your physician. She will be there for you every step of the way answering questions, helping you schedule and finance your surgery and assisting you while you make your important pre-operative decisions.

She is a graduate of the University of Tennessee in Chattanooga with a Bachelors Degree in Human Ecology. Rebekah spends her free time with her husband and children.

e-mail Rebekah: [email protected]


Annie Nelson, L.P.N.

Licensed Skin Care Professional

Annie Nelson, L.P.N.

Annie received a cosmetology degree in 1985, then she completed her nursing degree at Lively Technical Center in Tallahassee, FL in 1992. She joined Southeastern Plastic Surgery, P.A. team in Tallahassee, FL in November 2003. Annie has over 19 years in the field of cosmetology and has advanced training with the Obagi® Skin Care System and specialized training with PCA Skin® chemical peels.  Her extensive experience allows her to tailor personalized skin care treatment programs to suit the needs of each patient in order to address concerns like early signs of aging, active acne and scarring, skin discoloration and pigmentation issues, and rosacea. Annie uses her advanced training to perform chemical peels, facials, microneedling, microdermabrasion, dermaplaning and miraDry® within a custom-designed treatment regimen to help patients look and feel their best.

She is available for skin care consultations to evaluate and recommend treatment plans to fit the client’s needs as well as provide any needed additional care.

e-mail Annie:
[email protected]


Virginia Darling

Office Manager

Virginia Darling, Office ManagerVirginia joined Southeastern Plastic Surgery, P.A. team in November 2009. She has more than 28 years of experience in the medical arena.

Virginia enjoys spending quality time with her, husband, two kids, family members and friends.

During football season their house serves as a bed & breakfast for out of town friends and family members. She enjoys reading and spending time at the beach.


Sharla Deanda, R.N.

Aesthetic Nurse

Sharla Deanda, R.N.A native of Tallahassee, FL, Sharla attended Florida State University where she earned her Bachelor of Science degree in Nursing. After many years in the field, she joined our practice in 2006, working as a surgical nurse in Southeastern Plastic Surgery, P.A.’s outpatient surgery center. During her tenure with the practice, Sharla gained vast knowledge of medical grade skin care which she integrates into aesthetic nursing. She draws upon her experience and training to offer top of the line, results-oriented, skin care regimens to meet the needs of her clientele with a concentration on the Obagi® Skin Care System. Sharla has advanced training in miraDry®, sclerotherapy for spider veins, effective skin analysis and developing individualized treatment plans for aged, acne, rosacea and pigmented skin. She utilizes the most up-to-date techniques for skin rejuvenation such as: chemical peels, micro-dermabrasion, dermaplaning, customized facials, and microneedling.


Taryn Talley Blais, ARNP, FNP-C

Nurse Practitioner

Taryn Tally Blais, ARNP, FNP-C

Taryn joined Southeastern Plastic Surgery in 2021. She began working in the medical field in 2011 as an emergency care technician while completing her Bachelor Degree in Nursing Science at Florida State University. She graduated as a member of Sigma Theta Tau International Honor Society and began her nursing career at Baptist Hospital in Jacksonville, Florida in the Cardiac Intensive/Progressive Care unit. Taryn returned to Tallahassee to advance her career and attended Florida State University full-time to earn her Doctorate degree in Nursing (DNP) while working on the Cardiac Progressive Care Unit at Tallahassee Memorial Healthcare. Upon graduating, she followed an interest in cardiology, working for a local cardiology practice for 4 additional years. 

Taryn is licensed by the State of Florida as an Advanced Practice Registered Nurse and is a member of the Tallahassee Council of Advance Practice Nurses. She works with Southeastern Plastic Surgery’s three  reconstructive and cosmetic surgeons both in our surgical suite and the hospital setting. She has a strong passion for cosmetic injectables and received her Allergan Cosmetic Essentials Certification. 

Taryn was born and raised in Tallahassee as a third generation Tallahassee native. She spent her childhood years at her mom’s local art Studio. This is where her love of art and creativity initially blossomed. She enjoys a variety of hobbies including spending time at the coast with her husband Garrett, Luna their black lab, friends and family.

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