Who We Are

Uderm is a locally-owned and operated medical, surgical and cosmetic dermatology practice near Chattanooga, TN.

Established in 2020, our company exists to provide the highest quality patient care to our greater Chattanooga community. Because of our comprehensive scope of practice, we are an excellent destination for patients of all ages and skin conditions. Our founder and Mayo Clinic-trained dermatologist and Mohs surgeon, Dr. Jonathan Miller, leads our team to ensure we are a place “Where you [patient & employee] come first.”

Read our patient testimonials


Our Mission

To provide the highest quality dermatology care, delivering both superior clinical outcomes and outstanding patient experiences.

Our Core Values

  • Put Others First
    • Empowering a culture of thriving individuals, we put the needs of others first.
  • Act with Integrity
    • Delivering uncompromising care, we focus on what is right for the patient.
  • Lead with Excellence
    • As leaders in our field, we implement innovative treatments for the best possible outcomes.
  • Serve with Compassion
    • Demonstrating love, humility, and faith, we strive for whole-person care.



Meet Our Team

Jonathan Miller, MD, FAAD

Board-Certified Dermatologist and Mohs Surgeon in Chattanooga, TN

Dr. Miller is a board-certified dermatologist and fellowship-trained Mohs micrographic and reconstructive surgeon at our office in Ooltewah, TN. He received his medical doctorate, along with academic scholarships and coursework honors, from Quillen College of Medicine at East Tennessee State University. He then completed a transitional year internship at the University of Tennessee in Chattanooga, dermatology residency at Mayo Clinic in Rochester, MN, and a Mohs micrographic surgery and dermatologic oncology fellowship with the Surgical Dermatology Group in Birmingham, AL, where he participated in over 2,500 Mohs surgeries and reconstructions.

Dr. Miller has been active in research and innovation through publishing articles in peer-reviewed medical and surgical dermatology journals, presenting at national conferences, and creating a comprehensive dermatology education app.

He is board certified by the American Board of Dermatology and maintains memberships with the American Academy of Dermatology, American Society of Dermatologic Surgery, American College of Mohs Surgery, and the Alpha Omega Alpha honor medical society.

Prior to medicine, Dr. Miller obtained an undergraduate degree in nursing from Southern Adventist University, and worked for two years in critical care before spending a year as a missionary nurse in the Philippines. Outside of medicine, Dr. Miller enjoys spending time with his wife and three daughters, aviation, fishing, outdoor activities, and volunteering in his community.

Brittanya, Limone, MD FAAD

Brittanya Limone, MD, MA, FAAD

Board-Certified Dermatologist

Dr. Limone is a board-certified dermatologist with extensive training in medical, pediatric, cosmetic, and surgical dermatology. She received her medical doctorate, along with academic and leadership scholarships and coursework honors, from the Loma Linda University School of Medicine in Loma Linda, CA. She then completed her internal medicine internship at the University of California in Riverside prior to completing her dermatology residency at the Loma Linda University Medical Center.

Dr. Limone has been active in research with over 15 peer-reviewed publications in journals such as JAAD Case Reports, Dermatitis, Pediatric Dermatology, and the Federal Practitioner. She has presented at national conferences and has been actively involved in medical student education and mentorship.

Dr. Limone is board certified by the American Board of Dermatology and maintains membership at the American Academy of Dermatology, the Society of Pediatric Dermatology, and the Alpha Omega Alpha honor medical society.

William Abildgaard, Jr., MD, FAAD

William Abildgaard, Jr., MD, FAAD

Board Certified Dermatologist

Dr. Abildgaard is a board certified dermatologist with almost 40 years of experience in dermatology.

He received his undergraduate degree in biology from Pacific Union College, and his medical

Degree from Loma Linda University School of Medicine. He then completed his internal medicine internship at Loma Linda University Medical Center, and a residency in dermatology at the University of Kansas Medical Center.

Dr. Abildgaard spent the next 36 years in solo practice of dermatology located in rural Northern California.

Dr. Abildgaard enjoys spending time with his wife of 49 years, three sons and six grandchildren, traveling, golf and wildlife photography.

Kristie Obranovich, PA-C

Board-Certified Physician Assistant

Kristie is a Board-Certified Physician Assistant, graduated Magna Cum Laude from The University of Alabama at Birmingham Surgical Physician Assistant Program. She earned her undergraduate degree in three years from Lee University in Cleveland, Tennessee where she graduated Summa Cum Laude with a Bachelor of Science in Biology and Health Science.

Kristie is certified by the National Commission on Certification of Physician Assistants. She is licensed by both the Texas State Board of Medical Examiners and Tennessee State Board of Medical Examiners. She is a member of American Academy of Physician Assistants and Society of Dermatology Physician Assistants.

As a Physician Assistant Kristie has received specialized training in both medical and cosmetic dermatology and earned the title of Diplomate Fellow under the SDPA Fellowship Program. The SDPA Fellowship Program represents the standard in dermatology PA education, allowing graduates to demonstrate that they have the knowledge and skills necessary to provide exceptional patient care in dermatology.

Sarah Reagan Hughes

SarahReagan Hughes, PA-C

SarahReagan Hughes, PA-C is a board-certified physician assistant. She obtained her undergraduate degree from Auburn University in Auburn, Alabama where she graduated summa cum laude with a Bachelor of Science in Biomedical Sciences. After graduating Auburn, she attended The University of Alabama at Birmingham Physician Assistant Program where she received the Kirklin Award for Academic Excellence.

SarahReagan is certified by the National Commission on Certification of Physician Assistants. She is licensed by both the Alabama State Board of Medical Examiners and Tennessee State Board of Medical Examiners. She is a member of AAPA And Society of Dermatology Physician Assistants as well as the Alabama Society of Dermatology Professionals.

SarahReagan has been practicing dermatology since she graduated PA school in 2020. She enjoys seeing patients in clinic and educating them on their specific skincare needs as well as assisting Dr. Miller in Mohs surgery. SarahReagan continues to further her knowledge by attending yearly dermatology conferences.

Outside of work, SarahReagan enjoys going on walks with her husband, Austin, and their golden retriever, Duke. On their free weekends, SarahReagan and Austin like to spend time at the lake or the farm with their families.

Beth Hehn

Practice Administrator

Beth has 24 years of progressive responsibility in the development, growth, and leadership of physician practices, including integrating multi-specialty practices within a health care system. She has been recognized as an exceptional operational and management leader with proven ability to drive organizational change and aligning teams of physicians and employees to achieve strategic business goals. One of her passions is equipping practice managers to meet the needs of their patients, physicians, and staff and she served over 15 years on the Executive Board of the local chapter of the Medical Group Management Association. Beth and her husband Bruce enjoy traveling, reading, cooking, and spending time with their children and grandchildren.


Shelley Murry, LPN

Office Manager

Born in Illinois, Shelley has now lived the majority of her life in Ringgold, Georgia.  She began working in the medical field in 1993 originally as a medical assistant, then becoming an LPN in 2008.  She credits her mother-an RN, and her Christian upbringing for cultivating a desire to help and serve others.  She also tries to follow the teaching of her nursing instructor who emphasized, “a nurse is the advocate for the patient.”  She has a long history in OB-GYN nursing, as well as working in a multi-specialty medical office. She and her husband, Ric, celebrate their 40th anniversary in 2023.  She loves spending time with her children and grandchildren.  She also enjoys baking and experimenting in the kitchen, traveling, and music.


Julie Miller Travers, RN

Laser & Aesthetic Specialist

Julie is a registered nurse and aesthetic specialist. She graduated with her nursing degree from Southern Adventist University in 2011. As a new nurse, she quickly identified with the significance of nurturing whole-person care and well-being. Embracing this mindset led the way in expanding her knowledge, skill, and experience, giving her a unique perspective personally and professionally. After years of practice in women’s services, neonatal care, plastic surgery, medical aesthetics, and patient education, she found a perfect fit in dermatology. Julie is excited to serve the community of the greater Chattanooga area and honored to care for the residents of her hometown with her extensive training and experience in laser therapy and aesthetic dermatology. After hours, you can find Julie teaching Pure Barre classes, spending quality time with family, and living a full life with her husband, Tommy, and their little sheltie Finn. 

Tim Wilson

Lab Supervisor, Histotechnician, and IT Manager

Tim earned a Bachelor’s degree in Social Work from Southern Adventist University and has worked in Chattanooga for over a decade. He has a diverse set of skills including IT, case management, and medical assisting in various hospital roles. Most of his career has been as a histotechnician, preparing specimens as a microtomist for microscopic examination. An outgoing and jovial man, Tim is a technology enthusiast, enjoys building computers, and shares a love of animals with his wife of twenty-five years.