NPI 1 vs NPI 2 for Therapists: Which One Do You Need?
It is 10:47 p.m. You have your LLC paperwork open in one tab, NPPES open in another, and one question has stopped the whole process.
Are you applying as an individual or an organization?
An NPI 1 identifies you, the individual therapist. An NPI 2 identifies an eligible healthcare organization, such as a group practice, corporation, or LLC that provides healthcare. The CMS NPI Fact Sheet places sole proprietors under Type 1 and explains that an incorporated therapist may also obtain a Type 2 for the business.
At The Private Practice Pro, Kelley Stevens teaches that private practice is a series of steps. Your NPI is one of them. The goal is to know what each number identifies and where it belongs.
NPI 1 vs NPI 2 at a Glance
| Question | NPI 1 | NPI 2 |
|---|---|---|
| What does it identify? | An individual healthcare provider | A healthcare organization |
| Who commonly uses it? | Therapists, psychologists, psychiatrists, and sole proprietors | Group practices, clinics, corporations, LLCs, and other eligible organizations |
| How many can you have? | One per individual | An organization may have more than one when its structure calls for separate identifiers |
| Does it stay with you? | Yes. The individual NPI remains the same when your name, address, or job changes | It belongs to the organization and may change in limited business situations |
| Can a therapist need both? | Yes | Yes |
The simplest way to remember the difference
NPI 1 follows the therapist.
NPI 2 identifies the healthcare business.
That distinction clears up most of the confusion.
What Is an NPI and What Does It Do?
A National Provider Identifier is a unique ten-digit number used to identify healthcare providers in standard transactions. The National Plan and Provider Enumeration System assigns and maintains NPIs. The number itself does not reveal a provider’s specialty, license, or location.
What an NPI does not do
Receiving an NPI does not prove that you are licensed, credentialed, enrolled with an insurance plan, or guaranteed payment. CMS states each of these limits in its NPI guidance.
Because CMS defines an NPI as a provider identifier, it does not create an LLC, corporation, or professional entity.
What Is an NPI 1 for Therapists?
An NPI 1 belongs to an individual healthcare provider. It stays connected to that person when the provider changes jobs, moves, changes a legal name, or opens a practice. CMS describes it as a lasting identifier.
All healthcare providers may apply for an NPI, including marriage and family therapists, clinical social workers, counselors, psychologists, and psychiatrists. An NPI still does not prove licensure or payer enrollment.
NPI 1 for sole proprietors
A sole proprietor is an individual for NPI purposes. The CMS NPI Fact Sheet places sole proprietors under Type 1 and limits individuals to one NPI.
A business name, bank account, or EIN does not change the CMS rule that a sole proprietor is Type 1.
Does your NPI 1 change when you switch practices?
No. Your Type 1 NPI stays with you.
Update changed record details instead of applying again. CMS requires covered providers to report required NPI record changes within 30 days.
What Is an NPI 2 for a Therapy Practice?
An NPI 2 identifies an organization that provides healthcare. The CMS Unique Identifiers FAQ lists clinics and group practices as organization providers.
For therapists, the organization category may include a group practice, incorporated solo practice, LLC, PLLC, partnership, or clinic when the entity provides healthcare.
Does every LLC need an NPI 2?
No. Forming an LLC does not settle the question by itself.
The real question is whether the entity will enroll and bill as a healthcare organization. CMS says an incorporated provider may obtain a Type 1 personally and a Type 2 for the corporation or LLC. It does not say every LLC must have both.
Confirm whether each payer will enroll you as an individual, an organization, or both.
How NPI 1 and NPI 2 work in a group practice
A group may use a Type 2, while each therapist keeps a Type 1. Since the NPI itself does not enroll a provider in a health plan, each insurer may require separate forms and approvals to connect clinicians to the organization.
Do You Need NPI 1, NPI 2, or Both
| Your Practice Setup | Likely NPI Needs |
|---|---|
| Solo therapist and sole proprietor | NPI 1 |
| Solo therapist with an LLC, PLLC, or corporation | NPI 1, with a possible NPI 2 for the business |
| Group practice with several clinicians | NPI 2 for the organization and NPI 1 for each clinician |
| Independent contractor inside another practice | Your NPI 1, while the practice may use its NPI 2 |
| Cash pay therapist | Often NPI 1, with the legal requirement depending on whether the therapist conducts HIPAA covered transactions |
| Prelicensed clinician | A possible NPI 1, but billing authority depends on state and payer rules |
Cash-pay therapist
All healthcare providers may apply for an NPI, while healthcare providers that are HIPAA-covered entities must obtain and use one in HIPAA standard transactions. The CMS NPI page explains that the requirement is tied to covered entity status and standard transactions.
Ask each payer whether it requires an NPI for superbills or out-of-network reimbursement, sinceCMS separates NPI assignment from health plan enrollment.
Prelicensed therapist working under supervision
The CMS NPI Fact Sheet says an NPI does not prove licensure or complete payer enrollment, so it does not create independent practice or billing authority for a prelicensed clinician.
NPI vs EIN, Taxonomy Code, CAQH, and Credentialing
These records work together, but they do different jobs.
| Record | What It Identifies or Stores |
|---|---|
| NPI | An individual healthcare provider or healthcare organization |
| EIN | A business or other entity for federal tax purposes |
| Taxonomy code | A provider classification or specialty |
| CAQH Provider Data Portal | Professional and practice information shared with authorized health plans |
| Payer credentialing | The insurer’s review and approval process |
EIN
An EIN is a federal tax ID number. The IRS EIN guidance says LLCs, partnerships, and corporations need EINs and should be formed with the state before applying. An EIN identifies a tax entity, while an NPI identifies a healthcare provider.
Taxonomy code
A taxonomy code is a ten-character code that describes a provider’s classification and specialization. The National Uniform Claim Committee maintains the code set used in NPI applications.
Common behavioral health examples include:
| Provider Type | Taxonomy Code |
|---|---|
| Marriage and family therapist | 106H00000X |
| Mental health counselor | 101YM0800X |
| Professional counselor | 101YP2500X |
| Clinical social worker | 1041C0700X |
| Psychologist | 103T00000X |
| Psychiatry | 2084P0800X |
CMS confirms the MFT and mental health counselor codes in its MFT and MHC enrollment FAQ, while NUCC lists the other classifications in its current code set.
Choose the code that matches your license and provider classification. Since an NPI does not prove licensure, selecting a taxonomy code does not expand your legal scope of practice.
CAQH Provider Data Portal
The CAQH Provider Data Portal stores professional and practice information that clinicians share with authorized plans. CAQH now operates under the DataSpring name, while the portal keeps the CAQH Provider Data Portal name. Completing a profile does not replace payer enrollment.
How to Apply for an NPI Through NPPES
CMS recommends the online NPPES application for the fastest processing. Paper and bulk application options also exist.
Gather your legal name, Social Security number or EIN, addresses, license information, taxonomy code, contact details, and organizational records. The currentNPI application form warns that incomplete or mismatched information can delay processing or create insurer recognition problems.
Applying for an NPI 1
Use the NPPES application and apply as an individual provider. Do not submit another Type 1 because individuals are eligible for one NPI.
Applying for an NPI 2
Use the organization’s legal information. A Type 2 application requires an authorized official with authority to act for the entity, as explained in the NPPES application guide.
Applying for an NPI is free. Once assigned, keep the confirmation record and update the required NPPES information within 30 days when changes occur.
Common NPI Mistakes Therapists Make
Applying for a second NPI 1
An individual is eligible for one Type 1 NPI. Update the existing record instead of starting again.
Assuming an EIN means you need an NPI.
An EIN identifies a business for federal tax purposes, while a Type 2 NPI identifies a healthcare organization. They are not interchangeable.
Using information that does not match
Different names, addresses, or tax IDs across NPPES, CAQH, and payer forms can slow review. The current NPI application form warns that insurers may not recognize a provider when records do not match.
Treating the NPI as completed credentialing
An NPI does not enroll you with a payer or guarantee payment. Credentialing and enrollment remain separate steps.
Questions to Ask Each Insurance Payer
Ask these before completing enrollment forms.
Am I enrolling as an individual, an organization, or both?
Which NPI should identify the billing provider?
Which NPI should identify the clinician who rendered the service?
Does the organization need its own contract?
Must each therapist be linked to the group before seeing plan members?
Does the payer use the CAQH Provider Data Portal?
Which legal name, tax ID, and address must match across all records?
CMS sets the national NPI definitions, but the NPI itself does not complete payer enrollment. That is why the payer’s written instructions matter.
Your Final NPI Decision Checklist
Before applying, confirm five things.
Who is providing the clinical service?
Who is billing for the service?
Is the practice a sole proprietorship or a separate legal entity?
Is the business enrolling as a healthcare organization?
Do the legal name, EIN, address, taxonomy, CAQH profile, and payer application match?
When those answers are clear, the NPI decision gets much easier.
You Do Not Have to Piece This Together Alone
The hardest part is often knowing what comes before the application and what comes next.
The Private Practice Club offers support for the business side of practice. You can also explore coaching with Kelley or contact The Private Practice Pro for help with your next steps.
You are not behind. You are building something real, one clear decision at a time.
Frequently Asked Questions
Can a therapist have both an NPI 1 and an NPI 2?
Yes. The CMS NPI Fact Sheet says an incorporated healthcare provider may have a Type 1 personally and a Type 2 for the corporation or LLC. The Type 1 identifies the therapist, while the Type 2 identifies the organization.
Does a single-member LLC need an NPI 2?
Not always. CMS permits an incorporated provider to obtain a Type 2 for an LLC, but LLC formation alone does not determine the payer setup. Confirm how the business will be enrolled and billed before applying.
Does a cash-pay therapist need an NPI?
A therapist may apply for an NPI, while HIPAA-covered healthcare providers must use one in standard transactions. Cash-pay therapists should ask payers whether an NPI is required for superbills or out-of-network claims.
Is an NPI the same as an EIN or CAQH number?
No. An NPI identifies a healthcare provider, an EIN identifies a business for federal tax purposes, and the CAQH Provider Data Portal stores professional information for authorized plans.
Does an NPI expire when a therapist moves or changes jobs?
No. CMS says an NPI remains the same when a provider changes a name, address, or other record information. Covered providers must update required NPPES information within 30 days.
This article is educational and is not legal, tax, credentialing, or billing advice. Confirm your setup with each payer and with qualified legal, accounting, and licensing professionals who understand your state and practice structure.
