Saginaw Doctor, Yvonne Pacquing provide care for patients in the Saginaw area. Welcoming New Patients! We also offer Same Day Appointments!! ... Sunshine. Pediatric Partners. Yvonne V. Pacquing, MD, FAAP Melissa McNier, MD, FAAP Julia Mazur, MSN, CPNP-PC (989) 793-1202 (989) 401-3012..