I was referred to Dr. Westhoff by my friends Endocrinologist in Orange County and she is the best diabetes Doctor I have had so far. Very down to earth and takes time explains things so I can understand without using $10 words. Very happy with my referral and I like Mark (her assistant) because he is also caring and helpful. My only complaint is I wish she had an office in Camarillo or Oxnard because I'm not real familiar with Ventura.