Provider Directory / R / Lindsey M. Rentschler M.D. Lindsey M. Rentschler, M.D. Endocrinology Specialties: Endocrinology Phone Number: 303-586-5200 Fax: 303-586-5201 Website Link: https://www.boulderendo.com/dr-lindsey-rentschler/ Address: Boulder Endocrinology PLLC 892 W. South Boulder Road, Louisville, CO 80027 Get Directions