Kerrie Shirley. Her primary practice is as a Pharmacist: Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist, also practicing as a Pharmacist, a Pharmacist: Geriatric, a Pharmacist: Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist, a Pharmacist: Pharmacotherapy, a Pharmacist: Psychiatric, and a Pharmacist: Ambulatory Care.