How do i claim income from a 1099 NEC form from door dash?,

As a contractor for Doordash, you are considered self-employed.  

Per the IRS:

The earnings of a person who is working as an independent contractor are subject to self-employment tax.

To enter your self-employment income in TurboTax Online you can follow these steps:

1. Open or continue your return in TurboTax
2. Search for self employed income (use this exact phrase, don't add a hyphen) and select the Jump to link at the top of the search results
3. Answer Yes on the Did you have any self-employment income or expenses? screen
   • If you land on the Your 2021 self-employed work summary page, select Review next to the work you're adding income for
4. Answer the questions on the following screens until you arrive at Let's enter the income for your work
5. Select the form that applies to your situation and Continue
6. You can enter the info from your 1099 form on the following screens

Then be sure to review What self-employed expenses can I deduct? to see what expenses you can claim to reduce your self-employed income.