Referring Providers

Collaborative Sleep Care for Better Outcomes

At Washington Center for Sleep, we specialize in diagnosing and treating obstructive sleep apnea through comfortable, effective alternatives to CPAP therapy. Our practice exists to expand access to care — and to serve as a trusted partner for medical and dental providers throughout the Seattle area.

Whether you’re a sleep physician, primary care provider, ENT, cardiologist, or general dentist, we make referring simple, transparent, and patient-focused.

Overview of Our Referral Process

Referring is easy — and we’ll take it from there.

  • We accept referrals for:

    • Home sleep testing (HST)

    • Oral appliance therapy (OAT)

    • NightLase® laser snoring treatment

  • Our team handles:

    • Patient scheduling & education

    • Insurance verification & authorization

    • Follow-up communication with referring providers

Referrals can be submitted by fax or secure email.

Sleep Physician and Primary Care Partnership

We work closely with sleep physicians to support patients who are:

  • Seeking an alternative to CPAP

  • Already diagnosed and ready to start oral appliance therapy

  • Undiagnosed but high-risk for sleep apnea and prefer home sleep testing

We ensure:

  • All HST results are interpreted by board-certified sleep physicians

  • Oral appliance therapy follows AASM and AADSM guidelines

  • Medical documentation is sent to your office after key milestones

We aim to complement — not replace — your care plan.

General Dentist Collaboration

We welcome collaboration with general dentists who recognize airway-related concerns in their patients but don’t offer sleep testing or oral appliances in their own practice.

You can refer patients for:

  • Sleep evaluation & home sleep testing

  • Oral appliance treatment after a diagnosis

  • Second opinions on sleep-disordered breathing

We'll coordinate care respectfully, ensuring your patient returns to you for their general dental needs.

Referral Form

We accept referrals via:

  • Fax: (425) 437-3497

  • Secure email: info@wasleep.com

  • Phone: (425) 209-0700

Need materials or forms? Contact us and we’ll send a provider packet with everything you need.

Download our standard Record Request Form to see what documents we need with a referral from a sleep physician office for patients that have already been diagnosed with obstructive sleep apnea.

Outcome Reporting & Continuity of Care

We believe great outcomes come from great communication. That’s why we:

  • Send documentation after sleep testing

  • Share progress reports for oral appliance therapy

  • Ensure patients follow up with their referring providers

  • Remain available for consultation or co-management at any time

Together, we can improve sleep, restore energy, and elevate quality of life for more patients in the Seattle area.

FAQ for Providers

Q: Do you provide home sleep testing for undiagnosed patients?
 Yes. We offer HST interpreted by board-certified sleep physicians. We can provide documentation and facilitate follow-up care based on the results.

Q: Will my patient be encouraged to transfer their care?
 No. We focus only on sleep-related issues. Patients return to you for their ongoing medical or dental care.

Q: Can I co-manage oral appliance therapy?
 Absolutely. We value co-management and can tailor communication and visits to suit your preferred workflow.

Q: Do you accept medical insurance and Medicare?
 Yes — we help patients navigate medical insurance and submit claims on their behalf.

Q: Can I speak with Dr. Koogler directly?
 Of course — we’re always open to case discussions or collaboration. Just reach out!