Office Hours. Monday 8 am – 5 pm. Tuesday 8 am – 5 pm. Wednesday 8 am – 5 pm. Thursday 8 am – 5 pm. Friday 8 am – 5 pm. The certified nurse-midwives at Baystate Medical Practices - Pioneer Women's Health - Greenfield are highly educated professionals with backgrounds in both nursing and midwifery. All are certified by the American ....