Ms. John joined the Department of Family Medicine in 2017.

Ms. John earned a Bachelor of Science in Nursing from Leelabai Thackersey College of Nursing at SNDT Women's University in Churchgate, Mumbai, India. She also earned earned a Bachelor of Science in Nursing, as well as a Master of Science in Nursing, from the Prairie View A&M College of Nursing in Houston, Texas.

She is certified as a Family Nurse Practitioner by the American Academy of Nurse Practitioners (AANP) and is licensed by the Texas Board of Nursing.

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Brittany Menefee was born in the great state of Texas and was raised in Galveston County. She obtained her Bachelor of Science in Nursing from Texas State University in 2012. Brittany started her nursing career as an Emergency Room RN in Round Rock, Texas. She then moved back to the Houston area, to be closer to family, and began working as an Emergency Room nurse at Ben Taub Hospital. Brittany continued working at Ben Taub throughout her Master's degree program. She graduated from the University of Texas Medical Branch in Galveston, Texas in December 2017. Brittany is board certified as a Family Nurse Practitioner by the American Academy of Nurse Practitioners.

Brittany enjoys spending time with her family and her rescue dogs.

I enjoy practicing all aspects of Family Medicine. I am board certified in Family Medicine, and have been in practice for over 40 years. I recently joined the primary care clinic in Angleton and enjoy it very much. It reminds of the small town I grew up in, in Oklahoma. I especially enjoy the drive over along the Bluewater highway.

My wife and I moved to Galveston in 2003. We love living on the beach and visiting our grandchildren.

Tiffany Perez, DO is originally from Houston, Texas. She received her bachelor’s degree in Biochemistry from Baylor University in Waco, Texas. Following this, she attended medical school at Edward Via College of Osteopathic Medicine in Auburn, Alabama. She completed residency at Oklahoma State University/OMECO Teaching Health Center in Tulsa, Oklahoma.

Dr. Perez puts the needs of her patients at the forefront of everything she does and continually strives to deliver the best levels of patient care at all times. She pursued family medicine because she enjoys taking care of patients of all ages and backgrounds. Her clinical interests include minor procedures, women's health, and preventive medicine.

Dr. Perez’s hobbies include spending time with family, playing with her dog, and traveling. She is excited to join UTMB and hopes to make a positive impact in the community.

Clinical Areas of interest in pediatric medicine, adult medicine, geriatric medicine, prevention medicine, health maintenance and special interest in women’s health. I aim to provide personal, comprehensive, and continuing care for the entire family.

I enjoy spending quality time with friends and family, reading, traveling and Pilates class.

Dr. Mariam Khan’s journey into medicine began with a passion for primary care, driven by the desire to build enduring relationships with patients from childhood through their golden years. While completing her medical degree at UTMB, she was initially drawn to pediatrics, and ultimately found her calling in UTMB’s Family Medicine residency program, influenced in part by her husband’s great experience within UTMB.

Dr. Khan's commitment to UTMB didn't end with her training; she chose to stay on as a practicing physician after completing her residency in 2023 and lives in the area. This decision was influenced by the camaraderie among UTMB graduates who have chosen to remain at the institution. She appreciates the stability and strong connections that come from this tight-knit community of medical professionals.

In her clinical practice, Dr. Khan's special interests lie in preventative health and evidence-based medicine, and during residency, was recognized for her dedication to compassionate care with the Arnold P. Gold Foundation Humanism and Excellence Teaching Award. She thrives on the daily challenges of her role and takes an approach involving motivational interviewing to empower her patients in managing various health issues, whether related to mental health or chronic conditions like diabetes. Her persistence and ability to connect with her patients shine through as she helps them navigate their health journey. Outside of her medical career, she cherishes family time, enjoys traveling, and has a passion for cooking.

Dr. Uzoma Obi-Nwankwo is a Board-certified Family Physician with specialized training in Geriatric Medicine. She received her medical degree from Ebonyi State University, Nigeria. She completed her Family medicine Residency training at DeTar Healthcare system-Texas A&M university program and her Geriatric Medicine Fellowship training at the University of Texas Medical Branch.

Dr. Obi as she is fondly known by her patients and staff is passionate about tailoring individualized quality and compassionate care to her patients and their family’s unique needs through timely value-based care and shared decision making. She loves that she can provide medical care for all age groups and relate and serve them in a one stop, shop all manner. She funnily describes her role as PCP as that of the postal services such that she helps her patients address and bring together all information in their various aspects of health care to clarity and perspective with the goal of a healthier and functional status.

When she is not doctoring, she loves to spend time creating good memories with family and friends. She enjoys volunteering both locally and internationally, traveling, watching wrestling or action and adventure movies, learning American football and crafts and trying out new cultures and food.

Samuel Kahiu is a graduate of Texas Woman's University in Houston, where he obtained his Master of Science in Nursing. Samuel specializes as an experienced family nurse practitioner, and enjoys all aspects of family medicine and urgent care.

My name is Nyajuok Wur. I am originally from South Sudan, born in Ethiopia, raised in Minnesota and currently living in Houston, TX. My passion for medicine began at a young age and my desire to help others continues. I chose family medicine because of the variety as well as the opportunity to work with people from all ages and backgrounds.

Hobbies outside of medicine include reading mystery books, international travel, and singing.