Practice ops
NPI Type 1 vs Type 2 for therapists — which goes on a superbill?
Every clinician needs a Type 1 NPI. Whether you also need a Type 2 depends on how your practice is structured — and superbills may show one or both.

The two NPI types
- Type 1 — Individual: identifies you, the clinician, for your whole career. Free to obtain at nppes.cms.hhs.gov; every practicing therapist should have one.
- Type 2 — Organizational: identifies a business entity (PLLC, S-corp, group practice). Needed when the practice bills under the business rather than the individual.
Which goes on the superbill?
Solo practitioners billing under their own SSN or personal EIN typically list only their Type 1 NPI as the rendering and billing provider. If you formed an entity and payments flow to the business, list the Type 2 as the billing provider and the Type 1 as the rendering provider — the same structure a CMS-1500 uses.
Group practices always pair them: the group's Type 2 plus each treating clinician's Type 1 on their lines. Families' OON claims process more smoothly when both appear.
Getting a Type 2
Step 1
Form the entity first
You need the legal business name and EIN before applying.
Step 2
Apply at NPPES
Same portal as Type 1 — select organization, enter the EIN, and designate an authorized official. It is free and usually issued within days.
Step 3
Keep both active
Update addresses in NPPES when you move; stale NPI records cause claim mismatches years later.
FAQ
Can I keep billing with just a Type 1 after forming an LLC?
Many solo owners do, listing the entity's EIN as the tax ID with their individual NPI. Payer credentialing may eventually require the Type 2 — getting one early is free and avoids re-papering later.
Does the free superbill tool support both NPIs?
The generator includes provider NPI and tax ID fields formatted the way payers expect — list your rendering NPI and the tax ID your practice bills under.
More practice guides
Educational content only — not billing, legal, or tax advice. Verify payer policies and regulations for your state and situation.