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CREEKSIDE SLEEP MEDICINE CENTER PLLC
NPI 1154667475
Internal Medicine - Sleep Medicine in Bellevue, WA

Active since December 13, 2012
1380 112TH AVE NE, #307, BELLEVUE, WA 98004(425) 278-2250(425) 562-5885 Get Directions Write a Review

NPPES record last updated: December 13, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Creekside Sleep Medicine Center Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CREEKSIDE SLEEP MEDICINE CENTER PLLC (NPI 1154667475) is a healthcare organization registered as a sleep medicine in Bellevue, Washington and active in the NPI registry since December 2012. The organization lists Jeannein M Dieringer, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1154667475
Entity TypeOrganization
Primary Taxonomy207RS0012X
Legal Business NameCREEKSIDE SLEEP MEDICINE CENTER PLLC
Location Address1380 112TH AVE NE, #307Bellevue, WA 98004-3759
Mailing Address1380 112th Ave Ne, #307Bellevue, WA 98004-3759 · (425) 278-2250 · Fax (425) 562-5885
Phone(425) 278-2250
Fax(425) 562-5885
Organization SubpartNo
Authorized OfficialJeannein M DieringerOffice Manager · (425) 278-2228
Enumeration DateDecember 13, 2012
✔ NPI 1154667475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
1380 112TH AVE NE, Bellevue, WA 98004
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Other Identifiers 1

Medicare PING8868739WA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Creekside Sleep Medicine Center Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Creekside Sleep Medicine Center PLLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Nicole Phillips
Sleep Medicine
NPI 1881709863
1959 NE PACIFIC ST C212, BOX 356340
Seattle, WA 98195
(206) 543-0065
✔ PECOS5.8 mi
Shubh Ayengar, M.D.
Sleep Medicine
NPI 1154641975
4245 JOHNS CREEK PKWY STE A
Suwanee, GA 30024
(678) 990-3962
✔ PECOS2,172 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Creekside Sleep Medicine Center PLLC's NPI number?

The NPI number for Creekside Sleep Medicine Center PLLC is 1154667475. It was assigned to this organization in the NPPES registry on December 13, 2012.

Where is Creekside Sleep Medicine Center PLLC located?

Creekside Sleep Medicine Center PLLC is located at 1380 112th Ave NE #307, Bellevue, WA 98004. The listed phone number is (425) 278-2250.

What is Creekside Sleep Medicine Center PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Creekside Sleep Medicine Center PLLC enrolled in Medicare?

Yes. Creekside Sleep Medicine Center PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Creekside Sleep Medicine Center PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Sleep Medicine, reassign their Medicare billing to Creekside Sleep Medicine Center PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Creekside Sleep Medicine Center PLLC accept?

Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Creekside Sleep Medicine Center PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Creekside Sleep Medicine Center PLLC was last updated on December 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.