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Our Staff

Nasha Holt, MD

Medical Director, Headache Institute of Texas

Hometown: Cleveland, Ohio (lived there for 3 weeks before frequent moves growing up in our Air Force family: Arizona, Turkey, Massachusetts, Texas, Ohio again, New Mexico, England, California, Florida, Ohio again, Norway, Canada, Tennessee).

Favorite Quote: I’d far rather be happy than right any day. (Slartibartfast, Hitchhiker’s Guide to the Galaxy)

Favorite Book:The Brothers Karamazov by Dostoevsky


Nasha Holt, MD has been in private practice since 1987. Dr. Holt received her medical degree from McMaster University Medical School in Ontario, Canada. She practiced Family Medicine until 2006, when she focused her practice exclusively on the care of patients with headaches and neck-generated head and face problems. She pursued extensive training in the Strategic Orthopedics Spine System, which provides a specialized physical therapy approach to neck-generated head and face pain. She believes that a holistic approach gives patients the best chance of recovery from chronic pain conditions which have often impacted many areas of their lives. Most of the patients she sees have been in chronic pain for years, and their lives have become very disrupted by the time they see her. Many of them suffer from depression and anxiety.

Dr. Holt gets to the root cause of head and face pain through a detailed mechanical evaluation of the patient's cervical spine. This forms the basis for instructing patients in progressive, therapeutic neck exercises that heal common sources of head and face pain. At the same time, Dr. Holt systematically addresses health-promoting changes in the areas of sleep, exercise, diet, nutritional supplements and stress management strategies. Her patients have huge needs in these areas.

Dr. Holt, her children and her extended family have lived in San Antonio since 1997.

Allison George

Office Manager, Headache Institute of Texas

Hometown: Born in Los Angeles, CA, but have spent most of my life in San Antonio, TX, which is where I call home

Favorite Quote: “Let go and let God.”

Favorite Book: A Light in the Attic by Shel Silverstein


Allison George attended Texas A & M University Corpus Christi for 3 years, majoring in Early Childhood Education. Her background in education helped her develop tools for effectively engaging with patients and for coaching them through our comprehensive wellness program. She started her career at the Headache Institute of Texas in 2013. Seeing our patients recover from chronic head and face pain as they work their way through our program inspired her passion for building our headache practice. This, in turn, has allowed her to climb the ranks from a part-time front desk employee to office manager. Over her tenure, Allison has become an integral part of the practice, facilitating growth of the Headache Institute of Texas, and allowing more headache sufferers to find relief.

Codie Kurka

Doctor's Aide, Research Assistant, Headache Institute of Texas

Hometown: Kalamazoo, Michigan

Favorite Drink: French roast coffee

Favorite Book: Harry Potter and the Sorcerer's Stone by J. K. Rowling


Codie Kurka received her undergraduate degree in Exercise Science from Michigan Technological University in 2012 and her Master of Science in Biotechnology in 2017 from Johns Hopkins University Advanced Academic Programs. Biotechnology is a growing field that has many applications, including large scale pharmaceutical and medical research. Completing this degree has given Codie the background knowledge to initiate a retrospective analysis of the effectiveness of a therapeutic neck exercise program on the frequency and severity of migraines.

Although Codie believes in the importance of science in driving medical advancements, she is passionate about wellness. Not only does her undergraduate degree in Exercise Science reflect this, but she also lives a life centered around athletic endeavors - with a current goal of being competitive in strength sports.

In July 2020, Codie will continue her adventure in medicine at the University of the Incarnate Word School of Osteopathic Medicine where she will be a first year medical student. She is excited that UIWSOM has invited her to be a part of their community, and she looks forward to starting her training as a physician in San Antonio.

Ingrid Moon

Doctor's Aide, Headache Institute of Texas

Hometown: Born in Laredo, TX. Raised in San Antonio, TX.

Favorite Drink: Mango Bubble Tea

Favorite Movie: Star Wars

Favorite Food: Korean Food


Ingrid Moon earned her undergraduate degree in Biology at UTSA and is proud to be a first-generation college graduate. Shortly after graduation, she began working at the Headache Institute of Texas. For the past 3 years, she has been volunteering at a local clinic that provides health care services for the underserved population of San Antonio. Ingrid enjoys working with patients and helping them acquire knowledge to improve quality of life.

Ingrid is passionate about leading a healthy lifestyle and believes that diet and exercise are key components. When not working, she is usually at the gym or spending time with loved ones.

Elisabeth Hayman

Doctor's Aide, Headache Institute of Texas

Favorite Drink: Green Tea

Favorite Book: The Great Gatsby by F. Scott Fitzgerald

Favorite Movie: Once Upon a Time in Hollywood


Elisabeth Hayman is currently earning her bachelor’s degree in psychology at the University of Texas at San Antonio. She recently transferred from the University of West Florida, where she very much enjoyed the sunny weather, but missed her family here in the city of San Antonio. Elisabeth has a passion for helping others, specifically those that suffer with mental health related problems. She hopes to pursue a master’s degree from the University of Texas at San Antonio and has ambitions to travel or even study abroad while she is pursuing her higher education.

Elisabeth played youth soccer and very much enjoys the sport still. Elisabeth is a foodie and will go to great lengths for a yummy treat. When she is not in the office, she is usually spending time with family and friends.


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