NPI number for dentists

Dentists need an individual NPI for dental plan claims, Medicaid, Medicare Advantage dental, and e-prescribing. Associates need their own Type 1 even when the practice bills under its Type 2.

Short answer: dentists 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 dentists for an NPI

Dental plans and clearinghouses: Every ADA claim form lists the treating dentist's NPI.
Medicaid and Medicare Advantage: Enrollment and claims key on the NPI.
E-prescribing and PDMP systems: Prescriptions identify the prescriber by NPI.
Practice owners: The practice's Type 2 NPI bills; each dentist's Type 1 is the rendering provider.

When you can skip it

A fee-for-service practice that files no claims and prescribes nothing. Rare.

Taxonomy code for a dentist

The taxonomy code tells CMS and every payer your profession. For most dentists it is 1223G0001X, General Practice Dentistry. SimpleNPI enters it for you from your license type.

Also used	NUCC name	When
`122300000X`	Dentist	Dentist (no specialization): a general code; most general dentists use General Practice instead.
`1223X0400X`	Orthodontics and Dentofacial Orthopedics Dentistry	Orthodontics and Dentofacial Orthopedics.
`1223P0221X`	Pediatric Dentistry	Pediatric Dentistry.
`1223S0112X`	Oral and Maxillofacial Surgery (Dentist)	Oral and Maxillofacial Surgery.
`1223E0200X`	Endodontics	Endodontics.
`1223P0300X`	Periodontics	Periodontics.
`1223P0700X`	Prosthodontics	Prosthodontics.

Your license on the application

Enter your dental license number and state exactly as the board lists it.

Before you are licensed

Dental students and residents can use the Student taxonomy (390200000X) and switch at licensure.

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)
Dentist license number (DDS, DMD) and the state that issued it

Questions dentists ask

What is the taxonomy code for a general dentist?

1223G0001X, Dentist, General Practice. Specialists use their specialty code: orthodontics 1223X0400X, pediatric dentistry 1223P0221X, oral surgery 1223S0112X, endodontics 1223E0200X, periodontics 1223P0300X, prosthodontics 1223P0700X.

Does an associate dentist need an NPI if the practice has one?

Yes. The practice's Type 2 NPI is the billing provider; the associate's Type 1 is the treating dentist on the claim.

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.