Dr. Stumpel is a 1982 graduate from the Royal University of Utrecht, School of Dentistry, the Netherlands. He practiced on the island of Aruba until 1985, after which he was in private practice in Breda, the Netherlands. In 1991, he relocated to his present home of San Francisco. He is the former (1992-2006) director of Implant Prosthetics, Oral & Maxillofacial Residency Program, University of the Pacific, San Francisco, CA. In additional, he maintains an assistant professorship at the University of California at San Francisco, School of Dentistry. He is the holder of two patents for implant-related dental devices; has authored over 20 scientific publications; and is a frequent lecturer. Dr. Stumpel maintains a private practice in San Francisco, CA.