Sent following email @ providerrelations@hne.com: "Good morning,   I hope you're doing well, I wanted to check up on the status of an LOI that I submitted last month for our group/providers, the group info is as follows: Group Name: Spectrum Neuro Behavioral Care LLC NPI# 1356906572 TIN# 83-4482753  Please let me know if the LOI has been received and if so, what the expected turnaround time is for enrollment of the group and providers?  Thanks. " 