Who We Are

Melvin L RobisonMelvin L Robison D.O. is a graduate of SWOSU School of Pharmacy in Weatherford, Oklahoma, and received his medical degree from OSU College of Osteopathic Medicine and Surgery in Tulsa, Oklahoma. He received his post-doctoral training at OSU Regional Medical Center in Tulsa, Oklahoma. After becoming a board certified physician in family medicine, Dr. Robison made his home in Sayre, Oklahoma where he has practiced medicine now for over 25 years. Dr. Robison and his wife Stephanie enjoy traveling and fly fishing in their spare time..





Melvin L RobisonStephanie Robison- NP graduated from the University of Oklahoma with her Bachelor's degree in Nursing and has 18 years of ICU and Cardiac nursing experience. She recently graduated from The University of Cincinnati with her Master's degree in Adult-Gerontology Nurse Practitioner. Stephanie loves to travel with her husband and enjoys swimming, cooking, playing the piano, and spending time with her family.






Lisa Mahler

Lisa Mahler, APRN-CNP chose the nursing field due to the desire to help people when they are ill. She began nursing as a LVN in 1989, then continued her education as an RN in 1991 attending New Mexico Junior College in Hobbs, New Mexico. Lisa decided to further her education more by attending Lubbock Christian University in Lubbock, Texas to obtain a BSN in December of 2003. In August of 2006 Lisa obtained her MSN with a Family Nurse Practitioner license at Texas Tech University Health Sciences Center in Lubbock, Texas. In October of 2006 she began practicing as an APRN-CNP in Sayre, Oklahoma. Lisa joined The Robison Family Clinic in Sayre, Oklahoma in January 2010.




LouAnn MartinLouAnn Martin, APRN-CNP resides in Cheyenne, Ok with her spouse, Gary Martin. She graduated at Midwestern State University with a Masters of Science in Family Medicine to practice as a Nurse Practitioner. She was nominated into Who’s Who and was later inducted into the Sigma Theta Tau, Xi Iota Chapter, Honor Society. She was voted “Best of the Best” Family Nurse Practitioner by Woodward Newspaper Poll in January 2013. LouAnn is a member of the Oklahoma Nurse Practitioners Association. Her and her husband are members of the Methodist Church in Cheyenne where her husband is a business owner and they raise cattle.





Edwinna SmithEdwinna Smith, APRN-CNP obtained a nursing degree from SWOSU School of Nursing in Weatherford, Oklahoma in 2001 and graduated from Midwestern State University with a Masters in Family Practice from Wichita Falls, Texas in 2005. She is a board certified Nurse Practitioner with current memberships with the American Association of Nurse Practitioners and the Oklahoma Nurse Practitioner Association. Edwinna and Murphy (the best dog ever) enjoy having fun.