From Wiktionary, the free dictionary
Not (“emergency”) + Arzt (“doctor”)
Notarzt m (strong, genitive Notarztes, plural Notärzte, feminine Notärztin)
- emergency physician (male or of unspecified gender)
- “Notarzt” in Digitales Wörterbuch der deutschen Sprache
- “Notarzt” in Uni Leipzig: Wortschatz-Lexikon
- “Notarzt” in Duden online