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Meet Our Team

Dr. Khan

CEO, Medical Director

I am a highly experienced and accomplished nephrologist with almost 25 years of private practice in Oklahoma, holding numerous leadership and advisory roles across various health systems. My passion is providing compassionate, patient-oriented healthcare that is efficient and accessible. I hold a United States patent for my invention of a Circulatory System Access Preservation System. I am the Founder & Owner of Absolute Urgent Care & Absolute Med Spa to serve patients with quality care that is efficient and convenient. With the help of my team, we were able to expand into Providence Village in 2021. I am so blessed with amazing staff that makes patient care a priority and continue to service the people of Gainesville and Providence Village. I am a father of three girls and grandfather to a grandson and a granddaughter. When I am not working, I spend time with my wife and my family, travel when we get the chance, and always reading up on how to provide the best care to my patients.

Dr. Kazim


I am an experienced board-certified Internal Medicine physician who has been dedicatedly serving patients for over a decade. When I am not seeing patients at the clinic, I works as a hospitalist at various hospitals in the DFW metroplex. I believe in maintaining a healthy work-life balance and enjoy pursuing my hobbies, which include working out, photography, playing the piano, and traveling with my lovely wife and 4-year-old son. I am excited to provide primary care services at Absolute Urgent Care and create a long-term relationship with my patients!

Aliza Khan

Chief Operating Officer

Hi! I graduated from the University of Texas at Dallas in Business Administration, and I am in the process of receiving my Master of Business Administration in Marketing. I am also a licensed esthetician and certified laser technician, so I am usually seen by patients more at Absolute Med Spa in Providence Village. As chief operating officer for Absolute Urgent Care and Absolute Med Spa I wear a lot of different hats! I handle anything from marketing, employee management, patient satisfaction, and so much more! My sister, Sonia Khan and I work together on our day-to-day tasks to make sure AUC is operating at its best capacity! Absolute Urgent Care is family owned and operated, and I am so grateful to be a part of it. When I am not working, I am spending time with my husband, traveling, working out, and spending time with family…especially my niece and nephew!

Sonia Khan

Chief Financial Officer

I have a dual Master of Science in Healthcare Leadership and Management, and an MBA with a focus on healthcare. With my work history in insurance and healthcare, I believe in optimizing the industry and creating a more efficient workflow for our employees and ease for our patients. I am passionate about revolutionizing healthcare to ensure patients receive the best possible care. As a true multitasker, I skillfully manage all aspects of billing, claims, payer relations, and inventory management. I love to travel and spend quality time with my husband and adorable 4-year-old son!

Erin Erbskorn


“I graduated from UTA BSN, MSN. Have been in Renal care for 10 years. This is my second year in family practice. I love helping my patients look & feel their best and I get to do this through the urgent care and primary care services at AUC and apply my skills in aesthetics at Absolute Med Spa. I have two fur babies and I do a lot of work and training with them in my spare time. I spend 3-4 days a week in the gym & I also love to travel when the opportunity arises.”

Amber Cordero


“I am certified by the American Academy of Nurse Practitioners as a Family Nurse Practitioner. I obtained my ADN from NCTC in 2013, my BSN and then MSN from the University of Texas at Arlington in 2015 and then 2023. I have been working in healthcare since 2007. I started out working as a nurses’ aide and registration clerk to put myself through college. I was first enrolled as an English major with a minor in Journalism in hopes of seeing/documenting the world and eventually settling down as an English teacher with some awesome life stories to tell. After working in healthcare, my passion for nursing and caring for others flourished, and well the rest is history. I still have a few interesting stories, but I have not had the opportunity to travel the world…yet! Most of my nursing background is in Rural Health and Emergency/Critical Care.  I currently live in Bowie, Texas with my husband and our two sons, ages 5 and 2. They all keep me busy for sure! When I do get some free time, I enjoy sitting in silence, with my eyes closed, also known as napping. My goals are to try and live an uncomplicated life, enjoy ordinary things, make the most out of the time I am given, and leave a positive impact on the people I meet along the way.”

Tandi Barnett


I am certified by the American Academy of Nurse Practitioners as a Family Nurse Practitioner. I received my RN from North Central Texas College in Gainesville, my BSN from University of Louisiana – Lafayette (Geaux Rajun Cajuns) and my MSN – family nurse practitioner from Texas Woman University in Denton. I have worked in many areas of healthcare from registration, medical records, to dispatching for an ambulance service. As a nurse I spent over 15 years caring for patients in the emergency department. I have a true passion for helping people, and you will find me working in all areas at Absolute Urgent Care; from urgent care to primary care, and in the med spa. I am certified in anti-aging and weight management. I love to help people set goals to live a healthier lifestyle.
When I’m not working, my husband and I love all things outdoors. You will find us exploring some new location, hunting, fishing, or hiking a mountain. Our family now calls Mountain Springs home and enjoy lake living on Lake Ray Roberts. We have two grown children, our daughter and her husband live in Justin Texas. Our son and his wife and children live in Rexburg Idaho. Grandparent life is truly the best life.

Amber Lavender


“I am certified by the American Academy of Nurse Practitioners as a Family Nurse Practitioner. I obtained her Bachelor of Science in Nursing from Texas Tech University and continued to complete her Master of Science from the University of Texas at Arlington. I previously worked for Seminole Memorial Hospital in the Obstetrics and Emergency Department for 5 years. I have also served locally as a healthcare provider for the past 3 1/2 years. I currently live in Lindsay, TX with my husband and three kids. In my spare time, I enjoy spending time with my husband and kids at the lake and flying airplanes.”

Donna Klement


“I am a certified nurse practitioner in family medicine. My medical career started in 1992 when I received my associate degree in nursing from Cooke County College. My first job was working in the PCU and ICU with critically ill patients, and that’s where my passion for heart patients began. After observing many vascular procedures, I became a supervisor for a home health. However, my desire to take care of patients took over, and I went to work at Baylor Surgicare in Denton Texas for nine years preparing patients for surgery. I have also worked as a scrub tech and office nurse before finally landing a supervisor role for the preop and recovery for the cardiac cath lab at Mercy Hospital in Ardmore. After completing my BSN and NP school, I left the hospital and started working at Southern Oklahoma Kidney Center, where I learned so much from my oversight provider Abdul Khan. With his help, I am pleased to work at Absolute Urgent Care and Med Spa. Here, I can still care for patients for acute illnesses and chronic management with primary care, all while also helping them enhance their natural beauty through various procedures on the med spa side!”


Clinical lead

Coming soon…


Office manager

Coming soon…