Our Providers
Mark Oatman, MD
Dr. Mark Oatman has practiced at PPM since July 2019 and he is our Medical Director. He attended the OU College of Medicine where he received his Doctor of Medicine with specialties in emergency and family medicine. He completed his undergraduate and residency at Kansas University at Wichita. Dr. Oatman and his wife reside in Tulsa and he has three sons and four granddaughters.
Preston Hassell, APRN
Preston is a board certified family nurse practitioner. He completed his Master's of Science in Nursing from the University of South Alabama.
He is and optimist and futurist at heart. Preston's hobbies include: nutrition, physical fitness, and spending time with his wife and two young sons.
Cassie Lemaster, MSN APRN FNP-C
Cassie is a board certified nurse practitioner. She graduated with a Master's of Science in Nursing in 2020 from Cox College. She has worked in healthcare for eight years in many different areas; most recently in orthopedics and neurosurgery. When Cassie is not working, she loves traveling with her husband and cycling.
Staff
Samantha, Practice Administrator
Stacey, Financial/Referral Specialist
Stacey, Financial/Referral Specialist
Sam has been at PPM for 8 years. She started as a medical biller and coder and then moved into management. In her free time, Sam enjoys spending time with her husband and two children.
Stacey, Financial/Referral Specialist
Stacey, Financial/Referral Specialist
Stacey, Financial/Referral Specialist
Stacey and her husband got married last year. Their "kids" include: horses, cattle, and a dog. Stacey travels year around competitively showing her horses.
Vanessa, Administrative Assistant
Stacey, Financial/Referral Specialist
Vanessa, Administrative Assistant
Vanessa has been married to her best friend for 14 years. They have 4 amazing children and 3 sweet fur babies. If she is not at a sporting or school event for her youngest daughter, Vanessa is probably doing a DIY/craft project. She enjoys reading, cooking, shopping, and spending time with her friends and family.
Brittney, Director of Marketing
Brittney, Director of Marketing
Vanessa, Administrative Assistant
Brittney graduated from Oklahoma State with a Bachelor's in University Studies: Elementary Education/Sociology. She taught Pre-K and Kindergarten for 6 years before entering the medical world as a sales rep. Brittney loves concerts, reading, all things Disney, and spending time with her loved ones and dog, Lilo.
Anna, Billing Manager
Brittney, Director of Marketing
Katelyn, Front Desk Coordinator
Anna has been in the healthcare field for over 15 years. She enjoys spending time with her family and friends and reading.
Katelyn, Front Desk Coordinator
Brittney, Director of Marketing
Katelyn, Front Desk Coordinator
Katelyn is originally from Russellville, Arkansas. She graduated college there with a Bachelor's Degree in Communications in 2011. She has lived in the Tulsa area for 9 1/2 years. In her spare time, Katelyn loves spending time with her husband and 6 year old little girl. They are beyond excited to be expecting their second blessing!
Mai, Front Desk Coordinator
Bailey, Medical Coder/Billing Specialist
Bailey, Medical Coder/Billing Specialist
Mai is Hmong. She was born and raised in Fresno, California. Mai has 4 sisters and 2 brothers. She moved to Tulsa in 2018 and married her husband, Soua Lor. Mai enjoys spending time with her husband, family, and friends. Her hobbies are crafting, cooking/baking, outdoor activities, and playing volleyball with her husband and friends (even though she admits she's not the best at it).
Bailey, Medical Coder/Billing Specialist
Bailey, Medical Coder/Billing Specialist
Bailey, Medical Coder/Billing Specialist
Bailey has visited 13 states and her goal is to visit all 50. Her favorite place she has been is Zion National Park. Bailey's hobbies include: traveling, hiking, and creating resin crafts.
Mindy, Medical Billing Specialist
Bailey, Medical Coder/Billing Specialist
Joelene, Medical Billing Specialist
Mindy has been in healthcare throughout her entire professional career. Mindy enjoys spending time with her nieces and nephews and gardening.
Joelene, Medical Billing Specialist
Joelene, Medical Billing Specialist
Joelene, Medical Billing Specialist
Joelene has many years of experience in the medical billing field. She married the love of her life in October of 2020 and together they love traveling and spending time with their 3 daughters and grandson. Joelene also has a large love for anything Disney and animals.
Britney, Clinical Lead
Joelene, Medical Billing Specialist
Chelsea, Urinalysis Technician
Britney is currently in school studying to receive a Bachelor's Degree of Science in Biology and Chemistry. Outside of work you can find her spending time with friends and family and enjoying the outdoors. Britney enjoys hunting, fishing, camping, and hiking.
Chelsea, Urinalysis Technician
Joelene, Medical Billing Specialist
Chelsea, Urinalysis Technician
Chelsea has been in the medical field since 2013. In her free time she enjoys camping, fishing, road trips, and spending time with her friends and family.
Stephany, Nurse Tech
Cheyenne, Medical Assistant
Stephany, Nurse Tech
Stephany's dream is to become an RN. She has a 4 year old daughter and loves spending time with her and her family. Her hobbies include: doing make up and shopping.
Stephany, CNA
Cheyenne, Medical Assistant
Stephany, Nurse Tech
Stephany is originally from Phoenix, Arizona. She has been a CNA and working in healthcare for the past 3 years. She is currently studying to receive her Bachelor's in business and has served in the U.S. Army since 2019.
Cheyenne, Medical Assistant
Cheyenne, Medical Assistant
Cheyenne, Medical Assistant
Cheyenne received her Medical Assistant training at Tulsa Tech and has been working in the medical field since 2019. Outside of work Cheyenne operates a small business making custom tumblers. When she isn't working or making cups, she is spending time with her fiancée and her son.