Auto accident claims:

Please schedule 90 minutes for first visit and 60 minutes for subsequent visits. Even if you're already established in my practice this would be for a new injury. 

Health insurance:

Most companies reimburse up to 1 hour. If you want a longer session the remaining time can be paid out of pocket. Example: 90 minute visit with a $15 copay on the insurance part would be $15 + the fee for 30 minutes session. 

Paying out of pocket:

Choose the session length that serves your needs best.