Healthcare for the Entire Family
514 W. Windcrest St., Fredericksburg, TX 78624

From a foundation of Christian compassion, Cornerstone Clinic is committed to the care of the whole patient and the whole family.

Cornerstone Clinic is a group of six board certified Family physicians who practice broad spectrum family medicine.  We care for infants, children, adults, geriatrics, and four of our doctors provide full obstetric care with a family oriented philosophy.  We practice evidence based medicine with caring hands.  Our patients come to know and trust Cornerstone  

Services Provided

  • Comprehensive Childhood and Adult Wellness Visits
  • Complete Obstetric Care
  • Urgent Sick Visits
  • Minor Procedures
  • Dietary Education
  • Hospital and Nursing Home Care
  • Care of Chronic Medical Problems

The trained professionals in our clinic operate as a team, and we take pride in our professional capability. With our number one goal being to provide our patients with the highest quality of medical care.

Our providers:

Erika Benfield, RN, MSN, FNP

Karen G. Cornett, MD

Matthew J. Hoermann, M.D.

Drs. John and Suzanne Ellison Ramsay

Nancy M. Rickerhauser, M.D.

Kristi A Stafford, M.D. 



Clinic Hours 


8:00AM – 5:00PM, Monday – Friday

*On most Saturdays the on-call physician will see sick patients from   9:00AM – 11:00AM



8:00AM – 5:00PM, Monday – Friday


Monday - Friday: 8:00 am-5:00 pm
Saturday - Sunday: Closed