Our Nurses

Wendy Buchman, RN

Clinical Director

After many decades as an RN specializing in ICU, CCU, urgent care and surgical care, Wendy Buchman brings her knowledge and experience to PainCare as our RN Supervisor/Clinical Director.  Her interests include yoga, aerobics, pilates, hiking, photography and travel.

Nancy Vanni, RN

Originally from Ohio, it still seems that Nancy knows everyone who had ever set foot in that state.  Nancy’s extensive experience included working in doctor’s offices, hospitals and as charge nurse in pain management programs. Nancy has been with PainCare since 1998. She has 2 grown daughters and 2 grandsons.

Diane Guarrera, RN

Diane Guarrera has been with PainCare since the start.  She is married to Bob, a Real Estate Broker.  They have two children.  She and Southern California are perfect for each other.  She enjoys skiing, water sports, cooking and USC football games.

Kim Posner, RN

Kim Posner is married to a physician and is a mother of three nearly grown children.  An avid tennis player, Kim also enjoys watching football, and Anaheim Ducks games.  She has talked about entering the show The Amazing Race, and frankly we would not be surprised if she wins it someday.

Sandy Mathis, RN

Sandy is married to a Los Angels City Firefighter.  They have a teen daughter and a nearly teen son.  She is a busy Soccer and Hockey Mom.  She enjoys playing tennis and exercising.  Prior to joining PainCare, she worked for many years as an emergency room Registered Nurse.

Ellie Hively, RN

Ellie’s nursing career has included working in ICU, Outpatient Surgery and now Pain Management. She is married to Rick is the Mom of 3 children, 2 who are now on their own. She loves to travel, play golf and spend time with her family.