NPI number for speech-language pathologists

Speech-language pathologists need an NPI for Medicare, Medicaid, school-based billing, early intervention, home health and every commercial plan. Clinical fellows get one at the start of the CF year.

Short answer: speech-language pathologists need an NPI when a payer, platform or employer puts them on a claim. The NPI is free, takes minutes, and lasts for life. SimpleNPI files it for you for free, usually within 10 minutes, or you can apply yourself at NPPES. Check the free lookup first in case you already have one.

Who asks speech-language pathologists for an NPI

Medicare (PECOS) and Medicaid: SLPs enroll individually; school districts billing Medicaid need each SLP's NPI.
Hospitals, SNFs and home health: The agency lists you as rendering provider.
Early intervention and pediatric programs: State programs identify providers by NPI.
Teletherapy platforms: Credentialing asks for it at onboarding.

When you can skip it

A strictly private-pay practice with no superbills.

Taxonomy code for a speech-language pathologist

The taxonomy code tells CMS and every payer your profession. For most speech-language pathologists it is 235Z00000X, Speech-Language Pathologist. SimpleNPI enters it for you from your license type.

Your license on the application

Enter your state SLP license number and state exactly as the board lists it. Clinical fellows enter the provisional or CF license.

Before you are licensed

Graduate students can use the Student taxonomy (390200000X); clinical fellows use Speech-Language Pathologist.

Two free ways to get it

Option 1 · Free · Easiest

SimpleNPI files it for you

One short form: name, license, contact, address, identity and an e-signed authorization. About 3 minutes, no CMS account to create.
A person checks your license and address, then files the application with CMS under your signed authorization.
Your NPI arrives by email and text, with all the documentation, usually within 10 minutes. Filed after midnight Eastern? It issues around 6 am Eastern.

Usually within 10 minutes after the form is complete.

Start the free application

Option 2 · Free

Apply yourself at NPPES

Create an Identity & Access account at nppes.cms.hhs.gov.
Choose Apply for an NPI for myself, Individual (Type 1).
Enter identity, addresses, taxonomy code and license number, then certify and submit.

Usually a few business days; often minutes when the Social Security match passes.

Go to NPPES

What you need (either path)

Legal name exactly as it appears on your Social Security card, date of birth, Social Security number, sex, and birth state or country
Email and mobile phone
Mailing address and practice address (home is fine)
Speech-Language Pathologist license number (SLP, CCC-SLP, CF-SLP) and the state that issued it

Questions speech-language pathologists ask

What is the taxonomy code for a speech-language pathologist?

235Z00000X, Speech-Language Pathologist.

Can a clinical fellow (CF) get an NPI?

Yes. Apply with the provisional or CF license your state issued and update NPPES when the full license arrives.

Written by Ammon Hardin, LMT, who grew a massage practice to ten locations, built a veteran therapy network, and credentialed a large number of providers along the way. Updated Tue Oct 27, 2026. Free to read, free to use; SimpleNPI files NPI applications for free.