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OB/GYN Chattanooga Residents

PGY-1 Residents

Thea Campbell

Thea Campbell, DO
University of Pikeville Kentucky College of Osteopathic Medicine


Coming soon! 

Kyle Chesler, MD

Kyle Chesler, MD
Medical College of Georgia 


Hometown: Athens, GA
Undergraduate: Georgia Tech University
Medical School: Medical College of Georgia
Why I Chose OB/GYN: I first got interested in women's health/primary care when my mom was diagnosed with breast cancer just as I was starting medical school.  I stuck around because  no other specialty let me spend so many special moments and journeys with patients and I loved the daily variety of doing this job - it's the perfect balance of preventative medicine, adrenaline forward situations, and surgeries/procedures - a day in this life usually gives you all 3 and I love that.
OB/GYN Areas of Interest: I want to be a strong generalist that can take care of the needs of a smaller, potentially more remote community. I'm fascinated with high-risk obstetrics and I'm passionate about all women having access to the best obstetric/preventative care and the full spectrum of family planning services. I also love teaching and can't wait to have medical students and get them stoked on women's health.
Hobbies:  I love rock climbing in Chattanooga and try to do a few days on the trail once a year backpacking. I also play guitar; my Tennessee music phase so far has been fast blue grass/country.  Also love to bake when I have the time.. 

Riley Seibenhener, DO

Riley Seibenhener, DO
Alabama College of Osteopathic Medicine

Hometown: Huntsville, AL
Undergraduate: Auburn University
Medical School: Alabama College of Osteopathic Medicine
Why I chose OB/GYN:I am very passionate about women's healthcare and love forming lasting relationships with my patients. I also love the variety that OBGYN provides. Delivering babies, being in the OR, and spending time with patients in clinic is just the best!
OB/GYN Areas of Interest: Generalist
Hobbies: Antique shopping, hanging with my friends, love a good Netflix binge, and CrossFit with my husband!

Madeline White

Madeline White, DO
Lincoln Memorial Unveristy- DCOM


Hometown: Brick, NJ
Undergraduate: Clemson Univeristy
Medical School: Lincoln Memorial Univeristy- DCOM
Why I Chose OB/GYN: I love getting to combine the two aspects of being a primary care physician that provides long term care for patients, while also getting into the operating room and performing surgery. It’s the perfect combination!
OB/GYN Areas of Interest:  Rural medicine, addiction medicine, evidence based medicine, generalist OB/GYN practice
Hobbies:reading, spending time with friends, tennis


PGY-2 Residents

Jordan Austin

Jordan E. Austin, MD
University of Tennessee Health Science Center College of Medicine


Coming soon! 

Carly Bethune, MD

Carly Bethune, MD
University of Alabama School of Medicine


Hometown: Addison, AL
Undergraduate: Auburn University
Medical School: UAB School of Medicine
Why I Chose OB/GYN: I chose this specialiy because ti combines my love for surgery with continutiy of care and preventative medicine. It is an emotional and exciting field where we can support out patients through some of the most challenging and beautiful times of their lives. I love getting to cnnect with people and empower them to make informed devisions about their reproductive health.
OB/GYN Areas of Interest: Generalist, medical education, LGBTQ+ health, rural medicine
Hobbies: Thrifting and antiquing, cooking, listening to Taylor Swift on repeat, binging Netflix with my partner, Curt, and my cat, Aubie. 

Adam Bonner, MD

Adam Bonner, MD
University of Alabama School of Medicine

Hometown: Toxey, AL
Undergraduate: Stillman College
Medical School: UAB School of Medicine
Why I chose OB/GYN: Coming into medical school, I knew that I wanted to cultivate lifelong meaningful patient relationships that would promote both physical and mental well being in populations that were in need of compassionate care. During my clinical rotations, I fell in love with the operating room and immediately knew I would want to pursue a surgical specialty. OB/GYN was the perfect fit for me because it provides the opportunity for direct longitudinal patient care while also offering a wide range of procedural opportunities.
OB/GYN Areas of Interest: Minimally Invasive Gynecologic Surgery, Addiction Medicine
Hobbies: Golf, Hunting, Fishing, Watersports, Cooking, Sports Documentaries, and cheering on the Atlanta Braves!


Mallory Jones, MD

Mallory Jones, MD
University of Alabama School of Medicine


Hometown: Luverne, AL
Undergraduate: Troy University
Medical School: UAB School of Medicine
Why I Chose OB/GYN: I chose OB/GYN because I feel passionate about women's healthcare, and I love caring for and building strong relationship with female patients. I also chose OB/GYN because I was drawn to the variety within the field: I love the excitement of labor and delivery, I am passionate about providing preventative gynecologic care, and I enjoy the balance between being in the clinic, OR, and hospital.
OB/GYN Areas of Interest: General OB/GYN, underserved populations, access to care, maternal mortality.
Hobbies: Reading, spending time with my dog, Evie, and my cat, Scout, thrifting, hiking, cooking, playing tennis, watching new TV shows.


PGY-3 Residents

Blair Buschmann, MD

Blair Buschmann, MD
Texas Tech University School of Medicine


Hometown: Houston, TX 
Undergraduate: University of Missouri 
Medical School: Texas Tech Health Sciences Center 
Why I Chose OB/GYN: I really love the variety that OBGYN has to offer. You can be in the OR, clinic and labor and delivery all in the same day. I truly enjoy all the subspecialties, which I believe is really important since I want to be a generalist. 
OB/GYN Areas of Interest: Generalist 
Hobbies: spending time with my family and dogs, hiking, water sports/swimming, reading, traveling 

Rebekka Delgado, MD

Rebekka Delgado, MD
East Tennessee State University James H. Quillen


Hometown: Johnson City, TN
Undergraduate: East Tennessee State University
Medical School: ETSU Quillen College of Medicine
Why I Chose OB/GYN: OBGYN is the perfect combination of clinical contiuity with patients, office based procedures, and surgical procedures. I want to walk with my patients through every step of their life, from menarche to menopause and everything in between. I am also very passionate about women's health and advocacy and am proud to empower women to make choices about their reproductive health.
OB/GYN Areas of Interest: Adolescent reproductive education, underserved communities, reproductive advocacy
Hobbies: Hiking/ exploring the outdoors with my husband and two dogs, travelling, trying new restaurants, baking (macarons are my favorite thing to make).

Elle Morrical, DO

Elle Morrical, DO
Pacific Northwest University of Health Science of Osteopathic Medicine


Hometown: Bozeman, MT
Montana State University
Medical School: Pacific Northwest University of Health Sciences
Why I Chose OB/GYN: I did not know I wanted to do OB/GYN when I started medical school, but after my OB/GYN rotation, I knew I had found my perfect fit. Finding a specialty that allowed for surgery in the mornings, clinic in the afternoon, all while delivering babies in between is so exciting. And having the opportunity to take care of women across their lifespan while being and educator and advocate made it that much more appealing to me.
OB/GYN Areas of Interest: So far generalist, but I love the obstetrical niche so we will see!
Hobbies: Hiking, fishing, brunching, binge watching Netflix. 

Kimberley Bullard

Kimberley Bullard, MD, MPH
Oregon Health & Science University



Hometown: Oakland, CA
Undergraduate: Hampshire College
Medical School: Oregon Health & Science University
Internship: Oregon Health & Science University
Why I Chose OB/GYN: It’s privilege to be able to care for women across their lifespans and support them during vulnerable and critical moments.
OB/GYN Areas of Interests: immediate post-placental contraception, cost-effectiveness, health policy, abortion access in legally restricted settings, breastfeeding medicine.
Hobbies: Interior design, uncovering treasures at estate sales, FB Marketplace and Craigslist, traveling, and spending time at home with my family


PGY-4 Chief Residents

Dr. R. Crebessa pic 

Rachel Crebessa, MD
University of Louisville School of Medicine

Dr. J. Lomboy pic  

Jacqueline Lomboy, DO
Edward Via College of Osteopathic Medicine-Carolinas Campus

Dr. M. Sabourin pic  

Margaret Sabourin, DO
Alabama College of Osteopathic Medicine

MIGS Faculty/Fellows

Robin Power picture

Robyn Power, MD

Faculty and 1st Year MIGS Fellow
(7/1/2023 - 6/30/2024)

Medical School: Michigan State University College of Human Medicine (2019)
OB/GYN Residency: University of Chicago College of Medicine Obstetics and Gynecology Resdiency Program

UTHSC no image available

Cory Messingschlager, MD

Faculty and 2nd Year MIGS Fellow PGY-6
(7/1/2022 - 6/30/2023)

Medical School:  University of Michigan State College of Medicine (2018)
OB/GYN Residency:  Cleveland Clinic Obstetrics and Gynecology Residency Program 



Jul 15, 2024