It is very common for blood pressure and heart rate to increase when one goes to the doctor's office. Yes, it is usually due to anxiety over the anticipation of the visit. Have you determine exactly what you are anxious about? It seems that your doctor visit is for blood pressure check or the physical for your job, so you need to find a way to relax your body when you get there. Deep breathing is a good technique of breathing slowly in through your nose and exhaling out through your mouth with a blowing motion. When you get to the office parking lot, do breathing exercise for a few minutes and then in the waiting room as well. Read a book or magazine and do not concentrate on the visit. Remember how quickly it will be over. Focus on your slow breathing exercise and relaxing your entire body.
Let me know if I can help further.