(1) Objective: This study aims to evaluate the pre-admission pharmacist for high-risk obstetric patients’ admissions on medication management processes, workflow efficiency, and staff satisfaction. (2) Methods: Data collected over a 12-month period, from March 2025 to February 2026, were analysed. Data collected included clinic type, patient attendance, mode of pharmacist review, and follow-up requirements. Multidisciplinary healthcare professionals were invited to complete a satisfaction survey to identify themes relating to service value, workflow impact, and opportunities for improvement. (3) Results: A total of 1039 interviews with obstetric patients equating to an average of 19.98 interviews per week. A total of 999 patients were involved in the 1039 interviews held, 40/999 (4%) patients required additional follow-up telephone interview and 14 patients (14/999, 1.4%) requiring in-person interview for interpreter services, detailed discussion or hearing impairment. Thirty-two staff responded to a survey and demonstrated a consistent trend across anaesthetists, nursing and midwifery staff and pharmacists. All respondents either agreed or strongly agreed that PAC pharmacist in obstetric setting was valuable and beneficial to clinical workflow and medication management processes, and that they were satisfied with the PAC pharmacy service. (4) Conclusion: The PAC pharmacist demonstrated a positive impact on medication management for obstetric patients within the pre-admission setting.