Meet Our Providers

At Jefferson Family Practice, we have the most dedicated team in the San Antonio metro area. Our entire team strives to place the “family” aspect of our care first, with the families of some of our clients spanning as many as four generations! We love the aspects of Family Medicine and we'll do everything we can to ensure you and yours will feel welcome by our warm and caring environment.


Kimberly Heller, M.D.

Kimberly Heller, M.D.

Dr. Heller was born in Norfolk, Virginia and is the proud daughter of a Navy pilot and a registered nurse. She came to San Antonio in 1978 to attend Trinity University. Dr. Heller graduated medical school from the University of Texas Health Science Center in 1985, then stayed to complete her residency in Family Medicine. After becoming board certified in Family Practice, she entered private practice and has been a principal with Jefferson Family Practice since 1988. Dr. Heller is an adjunct professor at the University of Texas Health Science Center San Antonio Medical School and participates in the Texas Statewide Family Practice Preceptor Program mentoring medical students. Dr. Heller is a member of the American Academy of Family Physicians, the Texas Medical Association, and the Bexar County Medical Society. She loves her practice and her family. Dr. Heller has been married since 1982 and has five children (three adopted from Russia). She also serves on the Board of Directors of Russia Family Homes, a 501(c)(3) Christian ministry that teaches life skills to graduating orphans.


Jenny Sprute, M.D.

Jenny Sprute, M.D.

Dr. Sprute was born into an Army family in Fort Leonardwood, Missouri. After a few years of travel, her father retired from the Army in Killeen, Texas where she graduated from Ellison High School. Dr. Sprute graduated from Baylor University in 1988 and from The University of Michigan Medical School in 1994. She completed a 3-year Family Practice residency in Austin, Texas and was the Chief Resident in her last year of residency. Dr. Sprute moved to San Antonio and joined Jefferson Family Practice after completion of her residency and has been in this private practice since 1997. She is board certified in Family Medicine.  Dr. Sprute has two daughters that have grown into wonderful God-loving women.  During her years with Jefferson Family Practice, she was also the Medical Director and board member of St. PJ’s Children’s Home for several years.  She was a contract physician with Vitas Hospice for nearly ten years and is the Chief of Staff at the main Methodist Hospital 2020-2021.  Dr. Sprute has mentored both medical students and nurse practitioner students.  She is dedicated to helping patients find ways to sustain healthy habits for disease prevention.


Alaina Hallmark, M.D.

Alaina Hallmark, M.D.

Dr. Hallmark was born in Austin, Texas.  She graduated from The University of Texas at Austin in 1994 and graduated from The University of Texas Health Science Center in San Antonio in 1999, where she was a member of the Alpha Omega Alpha Honor Society.  She completed residency training in the Christus Santa Rosa Family Practice Residency Program where she received the Resident Scholar Award for outstanding academic performance.  She is board certified in Family Medicine and joined Jefferson Family Practice in 2002.  She has also served as a community preceptor for the UTMB School of Medicine in Galveston and has served in numerous officer positions for the Alamo Chapter of the Texas Academy of Family Physicians.  Dr. Hallmark has a special interest in preventive medicine and really enjoys the "family" aspect of family medicine, having numerous families where she cares for three generations.  She enjoys spending time outdoors and with her children and family. 


Tiffany Plunkett-Yancich, FNP

Tiffany Plunkett-Yancich, FNP

Tiffany Plunkett-Yancich was born and raised in San Antonio, Texas.  She graduated Summa Cum Laude from the University of the Incarnate Word in 2000 with a Bachelor of Science in Nursing.  She worked as a Registered Nurse in Medical Intensive Care and Post Anesthesia Care.   She attended The University of Texas Health Science Center at San Antonio, earning her Master of Science in Nursing with high honors and became a board-certified Family Nurse Practitioner in 2010.  She has worked at Jefferson Family Practice since.  Tiffany has three children and is deeply committed to her volunteer work with “Camp Discovery,” a summer camp experience for children who have cancer.


Raina White, FNP

Raina White, FNP

Raina White was born in Michigan but grew up in San Antonio.  She graduated with an ADN from San Antonio College in 1995 and then completed a BS in nursing in 1998.  She worked in women’s health, maternal/newborn, and home health nursing for many years.   One of the highlights of her career was travel nursing, where she worked in Maryland, Hawaii, and California.  In 2012 Raina graduated from The University of Texas Health Science Center San Antonio with a Master of Science in Nursing with high honors and became certified as a Family Nurse Practitioner.  She is a member of the Nursing Honor Society, Sigma Theta Tau.  Raina is the proud mother of two boys and in her spare time enjoys reading, boating, traveling, and spending time with her family.  


Sophie De Sequera, FNP

Sophie De Sequera, FNP

Bio Coming Soon.



stethoscope white
Jefferson Family Practice

9647 Huebner Road
San Antonio, TX 78240