Just like solicitors, barristers, accountants and any other senior corporate or public sector employee or professional business person then.
When my DC were children my contract of employment said 9 to 5 or as required. Sometimes I had to stay until 9pm as the duty manager, sometimes something critical blew at 5.30pm. Ordinarily I never expected to leave before 6pm.
Professional working women have appropriate paid childcare in place. It is an entirely reasonable expectation alongside not expecting a highly trained professional to make up apppointments and falsify records impacting a patient's personal data. If this were less than the tip of the iceberg, a sensible conversation could have taken place with a practice partner or the practice manager I imagine there were probably other issues rumbling and this was something that could be pinned on her.
I wouldn't want this person working at my practice and I'd be concerned if they popped up.