James Hirsch MD. Richard O. Nenstiel, PA-C, MBA. Leah Ambrose, PA-C. On Call Physician. On Call Physician Available 24/7 Call (251) 287-2176. Appointment. Call (251) 287-2176 or request appointment online. Patient Forms. Clark & Hirsch Neurosurgery & Spine Patient Forms. About Us. Clark & Hirsch Neurosurgery & Spine's mission is to provide ....