All locations are added under group PTAN and the provider is linked to the group.   Your active Railroad Medicare PTAN has been located and is shown here :  PROVIDER NAME	TRACI SMITH MASON NP PROVIDER PTAN	P02133482 PROVIDER NPI	1497127831 EFFECTIVE DATE	08/10/2018 END DATE	 GROUP NAME	RABAGOS HEALTH CARE PLLC GROUP PTAN	DW2792 BUSINESS STATE	TX EFFECTIVE DATE	04/12/2014 END DATE	 