Pineywoods Obstetrics/Gynclgy. Nursing (Nurse Practitioner), Obstetrics & Gynecology • 2 Providers. 402 Gaslight Blvd, Lufkin TX, 75904. Make an Appointment. (936) 699-7575. Pineywoods Obstetrics/Gynclgy is a medical group practice located in Lufkin, TX that specializes in Nursing (Nurse Practitioner) and Obstetrics & Gynecology..