State setup guide

How to Start a Therapy Private Practice in Washington

A state-aware launch guide for Washington therapists. Separate full independent licenses from associate, psychological-associate, probationary, temporary, compact, and other supervised or limited credentials, then align entity, telehealth, reporting, Apple Health, credentialing, and billing workflows.

Last reviewed:September 8, 2026

Written by:Bomi Team

Reviewed by:Billing and credentialing specialist

Start with license readiness

Your license type determines whether you can practice independently, need supervision, or should set up inside a group practice first. Confirm the current rules with the state board before accepting clients.

This table is a setup readiness starting point, not a substitute for current board review.

Use the exact Washington credential

Full LMHC, LMFT, LICSW, and Licensed Psychologist credentials are the clearest independent clinical paths in this guide. LASW is a full license, but psychotherapy remains supervised; associates, psychological associates, probationary licenses, temporary permits, and compact privileges need separate scope and payer analysis.

LASW is full licensure, not independent clinical social work

Washington's advanced-social-work definition includes psychotherapy only under qualifying supervision. Do not collapse LASW into LICSW when describing clinical authority, building a directory profile, selecting taxonomy, enrolling with Apple Health, or applying to a commercial payer.

Associate practice remains supervised

LMHCA, LMFTA, Advanced Social Worker Associate, and Independent Clinical Social Worker Associate credentials are prelicensure paths. An entity, NPI, supervisor attestation, or submitted payer application does not turn associate services into independent practice.

Practice authority and payment authority are separate

A full license, temporary permit, probationary license, compact privilege, or approved supervised arrangement does not require Apple Health or a commercial product to enroll or reimburse the clinician. Verify provider type, network, group affiliation, effective date, claim fields, and the first clean claim separately.

Credential	Independent practice?	Supervision issue?	Entity/business note	Bomi relevance	Official source
LMHC — Licensed Mental Health Counselor	Generally yes once the full Washington LMHC license is active and services remain within scope.	The full path includes qualifying graduate education, postgraduate supervised experience, examination, and Department of Health approval. Keep LMHC separate from LMHCA and any compact or probationary authority.	Good fit for solo, group, or hybrid setup after aligning the license, legal identity, public name, trade name, NPI, CAQH, W-9, service locations, and payer records.	Strong fit for commercial credentialing, Apple Health enrollment when eligible, claims, denials, and revenue operations.	Washington mental health counselor licensing requirements
LMHCA — Licensed Mental Health Counselor Associate	No. Washington defines an associate as a prelicensure candidate and does not allow an associate to provide mental health counseling independently for a fee.	Maintain an approved supervisor, approved setting, supervision records, active associate credential, and progress toward the full LMHC license. Confirm current renewal and supervised-experience rules.	Use a compliant supervised group, employment, or other approved setting. Ownership or a business filing does not remove supervision or create payer recognition.	Bomi can support a supervised workflow only after the Department of Health, supervisor, practice, Apple Health program, payer, and claim configuration are resolved.	Washington mental health counselor licensing requirements
LMFT — Licensed Marriage and Family Therapist	Generally yes once the full Washington LMFT license is active and services remain within scope.	The full path includes qualifying graduate education, postgraduate supervised experience, examination, and Department of Health approval. Keep LMFT separate from LMFTA.	Good fit for solo, group, or hybrid setup after aligning the license, entity, public name, NPI, CAQH, W-9, locations, and payer records.	Strong fit for commercial credentialing, Apple Health enrollment when eligible, claims, denials, and recredentialing.	Washington marriage and family therapist licensing requirements
LMFTA — Licensed Marriage and Family Therapist Associate	No. The associate credential is a supervised prelicensure path, not an independent private-practice license.	Maintain an approved supervisor, approved setting, supervision records, active associate credential, and progress toward the full LMFT license.	Use a compliant supervised group, employment, or other approved setting and verify how the exact payer handles rendering, billing, and supervision.	Bomi can support the workflow only after the lawful practice model, supervisor, Apple Health program, payer, and claim configuration are confirmed.	Washington marriage and family therapist licensing requirements
LICSW — Licensed Independent Clinical Social Worker	Generally yes once the full Washington LICSW license is active and clinical services remain within scope.	The full path includes qualifying social-work education, supervised postgraduate clinical experience, examination, and Department of Health approval. Keep LICSW separate from LASW and both social-worker associate credentials.	Good fit for solo, group, or hybrid clinical setup after aligning the license, business identity, NPI, CAQH, W-9, locations, and payer records.	Strong fit for commercial and Apple Health credentialing, claims, denials, and revenue operations.	Washington social worker licensing requirements
LASW — Licensed Advanced Social Worker	A full Washington license, but not the same as LICSW independent clinical practice. State law includes psychotherapy within advanced social work only under qualifying clinical supervision.	Confirm supervision for psychotherapy, the exact service and setting, and whether the practice goal requires the LICSW scope instead. Do not market or bill LASW as LICSW.	A business entity cannot expand the LASW scope. Align public descriptions, supervision, taxonomy, NPI, CAQH, Apple Health, and commercial-payer records with the actual credential.	Bomi can help after the clinical scope, supervision, provider type, and payer-specific billing model are confirmed.	Washington social-work scope definitions
Advanced Social Worker Associate or Independent Clinical Social Worker Associate	No. Both are prelicensure associate credentials and may not provide social work independently for a fee.	Use the associate credential that matches the intended full license, maintain an approved supervisor and setting, document supervision, and confirm the current experience and renewal rules.	Use a compliant supervised group, employment, or other approved model. Do not treat entity ownership, an NPI, or state credentialing as payer permission.	Bomi can track a supervised workflow only after Department of Health, supervisor, practice, Apple Health, payer, and claim requirements are clear.	Washington social worker licensing requirements
Licensed Psychologist	Generally yes once the full Washington psychologist license is active and services remain within scope.	The full path requires qualifying doctoral education, supervised experience, examinations, and Board approval. Keep the full license separate from a psychological associate, temporary practice permit, probationary license, and PSYPACT authority.	Good fit for solo, group, or hybrid setup after aligning license, legal identity, NPI, CAQH, W-9, service locations, telehealth authority, and payer records.	Strong fit for commercial and Apple Health enrollment, claims, denials, and revenue operations.	Washington psychologist licensing requirements
Psychological Associate	No ordinary independent-practice launch. Washington uses this credential for a doctoral student or postdoctoral participant practicing under an approved supervision agreement.	Maintain the supervision agreement, attestation of competence, qualifying enrollment or postdoctoral status, active credential, and exact service and setting requirements.	Use a compliant supervised training or postdoctoral model and confirm Apple Health and commercial-payer recognition before configuring claims.	Bomi can support the group workflow only after the Board, supervisor, practice, provider type, payer, and claim model are resolved.	Washington psychologist licensing requirements
Probationary, temporary, compact, or other limited authority	Do not treat limited-duration, cross-border, or compact authority as a permanent Washington license or an automatic payer contract.	Verify the exact credential or privilege, eligibility, effective and expiration dates, scope, supervision if any, client location, renewal or conversion path, and any restrictions before practice.	Keep temporary or interstate authority distinct from permanent licensure in public descriptions, NPI, CAQH, Apple Health, directories, contracts, and claims.	Bomi can track authority-to-practice and payer risk, but should not imply Apple Health enrollment, network participation, or commercial reimbursement.	Washington behavioral-health legislative implementation

Next step: confirm your state board rulesUse the official Washington licensing source before you decide whether to setup independently, stay supervised, or join a group first.

National steps

These steps are not unique to Washington, but they still need to match the state, address, entity, tax, payer, and EHR details you use for setup.

Decide whether the practice needs a Type 1 NPI, Type 2 NPI, or both, and define individual, sole-proprietor, organization, group, billing-provider, rendering or servicing-provider, and supervising-provider roles.
Create or update CAQH and keep attestations, work history, malpractice, licenses, service locations, ownership, and disclosures current.
Align EIN, W-9, legal identity, public practice name, Washington trade name if any, UBI, NPI, taxonomy, CAQH, malpractice, bank, EHR, clearinghouse, and payer-facing records.
Confirm HIPAA privacy and security, Notice of Privacy Practices, informed consent, Good Faith Estimate, release, documentation, retention, and emergency workflows.
Complete qualifying Washington telemedicine training before providing telemedicine, retain the attestation, and configure client-location and emergency workflows.
Select an EHR, clearinghouse, payment processor, eligibility process, ERA/EFT workflow, denial-management process, and patient-balance workflow.
Track ProviderOne, Apple Health fee-for-service, each applicable managed-care or Behavioral Health Services Only plan, and commercial applications, contracts, effective dates, portals, service locations, claim tests, EFT/ERA, recredentialing, and revalidation separately.

Next step: clean up NPI and CAQHMake sure your individual NPI, organizational NPI decision, taxonomy, CAQH profile, W-9, and practice address are consistent before payer applications start.

State-specific steps

Business entity options

Choose a Washington business structure with a qualified attorney or tax professional because formation does not change clinical scope, supervision, or payer eligibility. Washington offers ordinary LLC and corporation filings and professional forms such as a PLLC or professional service corporation; confirm whether a professional form, ownership rule, naming rule, or discipline-specific restriction applies before filing. Register a public-facing trade name through the Business License Application when required; a trade name is not a separate legal entity. Keep the legal identity, public name, trade name, EIN, W-9, UBI, NPI, CAQH, bank, EHR, ProviderOne, managed-care, and commercial-payer records aligned. Check city or county business-license endorsements, zoning, signage, home-office, and occupancy requirements for each physical location.

Next step: align entity details with billing recordsBefore payer setup, make sure your entity name, EIN, W-9, NPI, CAQH, EHR, and bank details will all tell the same story.

State and tax registration

Confirm federal, Washington, and local tax obligations with a qualified tax professional. Washington's business and occupation tax is a gross-receipts tax, and professional or personal services are generally reported under the Service and Other Activities classification; rates and thresholds can change, and ordinary business costs generally are not deducted from gross income when computing B&O tax. Use the Business Licensing Service and MyDOR to determine registration, filing frequency, trade-name, city endorsement, withholding, unemployment-insurance, and other accounts based on the actual entity, hiring, locations, and activities. Analyze clinical services separately from merchandise, workbooks, workshops, digital products, rentals, or other add-ons.

Next step: prepare EIN, banking, and payer paperworkUse the setup checklist to track financial setup before credentialing asks for tax and payment details.

Telehealth notes

Telehealth is a delivery method, not a shortcut around Washington licensure, associate supervision, scope, privacy, documentation, Apple Health enrollment, managed-care networks, or commercial-payer rules. Washington permits a practitioner to provide telehealth to a patient in Washington only when the service is consistent with the practitioner's Washington scope and applicable state and federal standards. Nonphysician health professionals who provide clinical services through telemedicine must complete qualifying telemedicine training and retain an attestation. Operationally capture the client's physical location at each visit, verify authority for that location, maintain emergency resources near the client, and confirm each payer's covered service, network, authorization, modality, place-of-service, modifier, platform, and documentation rules. Verify any temporary permit, probationary license, Counseling Compact privilege, or PSYPACT authority separately; interstate authority does not create payer enrollment.

Next step: configure EHR and telehealth workflowsSet the client-facing workflow for scheduling, consent, documentation, payments, and billing before the first appointment.

Mandated reporting notes

Build separate Washington child and vulnerable-adult reporting workflows into intake, informed consent, telehealth safety procedures, and supervision. Washington lists social service counselors or therapists and psychologists among child-abuse mandated reporters; when the statutory reasonable-cause standard is met, the report must go to law enforcement or the Department of Children, Youth, and Families at the first opportunity and no later than 48 hours. DCYF lists 1-866-ENDHARM (1-866-363-4276), and 911 remains the route for immediate danger. Covered vulnerable-adult reporters must immediately report suspected abandonment, abuse, financial exploitation, or neglect to DSHS; sexual assault and specified physical-assault or imminent-harm situations also require immediate law-enforcement reporting. DSHS lists Adult Protective Services at 1-877-734-6277 for community reports and the Complaint Resolution Unit at 1-800-562-6078 for covered long-term-care or supported-living settings. Confirm the person, role, setting, trigger, and routing; do not substitute internal escalation for a required external report.

Next step: build forms and policy review into setupKeep clinical policies, privacy workflows, intake forms, and billing policies on the same setup checklist.

Insurance credentialing notes

Separate Apple Health provider enrollment through ProviderOne, fee-for-service billing, each Apple Health managed-care or Behavioral Health Services Only network, and commercial payer credentialing. Select the exact individual, group, facility, billing, servicing, and nonbilling enrollment roles; confirm eligible provider type, taxonomy, individual and organization NPIs, Core Provider Agreement, ownership and disclosures when applicable, service locations, affiliations, billing, rendering or servicing and supervising fields, EFT/ERA, license updates, telehealth, authorization, and revalidation. A servicing provider application requires an enrolled billing provider, and HCA says care for a managed-care client requires contracting with the client's health plan. Some specialized behavioral-health services require an affiliated or licensed agency; do not apply agency requirements generically to every outpatient therapist. ProviderOne enrollment, managed-care contracting, commercial network status, and the payer effective date are separate gates. Verify the first clean claim before treating the launch as complete.

Next step: Map your payer listChoose target payers, gather packet details, and track every application through effective date and claim readiness.

Where Bomi can help in Washington

Bomi supports therapy practices in every state across the U.S. This guide organizes the Washington-specific setup questions that sit around the national NPI, CAQH, billing, and credentialing workflow.

Bomi can help once the Washington launch reaches NPI, CAQH, ProviderOne, credentialing, payer applications, eligibility, claims, denials, balances, and revenue management. For legal, tax, entity, supervision, scope, reporting, Apple Health, managed-care, compact, or payer decisions, confirm with the relevant Washington agency, a qualified Washington professional, or the payer before acting.

Build a payer-ready credentialing packet.
Track NPI, taxonomy, CAQH, licenses, supervision, malpractice, W-9, UBI, ProviderOne, EFT/ERA, and portal tasks.
Keep the legal identity, public practice name, trade name, EIN, W-9, UBI, NPI, CAQH, EHR, clearinghouse, bank, locations, Apple Health, managed-care, and commercial-payer records aligned.
Separate solo, group, hybrid, associate, psychological-associate, probationary, temporary, compact-authority, supervised, and fully independent workflows.
Separate Apple Health fee-for-service, managed care, Behavioral Health Services Only, commercial payer, EAP, cash-pay, and out-of-network workflows.
Configure billing, rendering or servicing, supervising, group, service-location, telehealth, and directory fields for the exact credential and payer.
Track applications, contracts, effective dates, claim tests, denials, recredentialing, license updates, and Apple Health revalidation.

Next step: talk through credentialing and billingBring your Washington setup stage, payer goals, and current NPI / CAQH status. Bomi can help turn the setup into a working revenue pipeline.

State caveat

This guide is educational, not legal, tax, billing, or clinical advice. Washington licensing, associate, psychological-associate, probationary, temporary, compact, entity, trade-name, local, tax, telehealth, mandated-reporting, Apple Health, managed-care, commercial-payer, and supervised-clinician billing requirements can change. Check the law and rules currently in force, official Washington sources, and payer contracts before acting.

Sources

Washington mental health counselor licensing requirements - Washington State Department of Health
Washington marriage and family therapist licensing requirements - Washington State Department of Health
Washington social worker licensing requirements - Washington State Department of Health
Washington counselor and social-work scope definitions - Washington State Legislature
Washington psychologist licensing requirements - Washington State Department of Health
Washington behavioral-health legislative implementation - Washington State Department of Health
Washington LLC and professional LLC filing resources - Washington Secretary of State
Washington Small Business Guide - State of Washington
Washington B&O tax classifications - Washington Department of Revenue
Washington telehealth resources - Washington State Department of Health
Washington telemedicine training law - Washington State Legislature
Washington child-abuse reporting duty - Washington State Legislature
Washington mandated-reporter resources - Washington State Department of Children, Youth, and Families
Washington vulnerable-adult reporting duty - Washington State Legislature
Washington vulnerable-adult reporting for mandatory reporters - Washington State Department of Social and Health Services
Apple Health billing-provider enrollment - Washington State Health Care Authority
Apple Health servicing-provider enrollment - Washington State Health Care Authority
Apple Health behavioral-health provider enrollment - Washington State Health Care Authority
Apple Health managed care - Washington State Health Care Authority

Ready for the payer path?

Bomi can help with CAQH, payer applications, claims, denials, and revenue workflows.

Use the state guide to confirm the setup requirements, then bring in Bomi when you are ready for credentialing and insurance billing operations.

Get credentialing help