Can I verify my identity here if the IRS sent a letter in in-person? i can not get an appointment

[DoninGA]

No, you cannot verify your identity to the IRS through TurboTax.

Go to these IRS websites depending on the type of letter you received from the IRS - https://www.irs.gov/individuals/understanding-your-letter-4883c-or-6330c

OR -

https://www.irs.gov/individuals/understanding-your-letter-5447c

[DoninGA]

IRS Identity and Tax Return Verification Service - https://www.irs.gov/identity-theft-fraud-scams/identity-and-tax-return-verification-service