1. Home
  2. Directory
  3. Washington
  4. Seattle
  5. Social Worker
  6. NPI Profile

JENNIFER C SLEEPER MSW
NPI 1003709171
Social Worker in Seattle, WA

Active since May 29, 2025PECOS Enrolled
6901 SAND POINT WAY NE, SEATTLE, WA 98115(516) 444-5860 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 11, 2025, May 29, 2025 (2 updates tracked since 2025).

About Jennifer C Sleeper Msw NPPES

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

JENNIFER C SLEEPER MSW (NPI 1003709171) is an individual social worker in Seattle, Washington, licensed in Washington (LW61620731) and active in the NPI registry since May 2025. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003709171
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameJENNIFER C SLEEPERCredential: MSW
Location Address6901 SAND POINT WAY NESeattle, WA 98115-7869
Mailing Address2205 E Roanoke StSeattle, WA 98112-2241 · (516) 444-5860 · Fax (516) 444-5860
Phone(516) 444-5860
Sole ProprietorNo
Enumeration DateMay 29, 2025
Last NPPES UpdateAugust 11, 20252 updates tracked since enumeration
NPPES CertifiedAugust 11, 2025
✔ NPI 1003709171 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in WA · LW61620731
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
6901 SAND POINT WAY NE, Seattle, WA 98115
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jennifer C Sleeper Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Jennifer Sleeper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Seattle Children's Hospital
1.4 mi
Specialist
4800 SAND POINT WAY NE
Seattle, WA 98105
  • Reassigned Medicare billing, Washington enrollment
  • Medicare enrollment name: Seattle Childrens Hospital
  • 912 clinicians in this Medicare group
NPI 1003319500 (206) 987-2000

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KAITLYN MARIE DRAFTON
Psychologist (Intellectual and Developmental Disabilities)
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-2000
CHRISTOPHER GOMEZ PHD
Counselor (Mental Health)
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-2164
HANNAH DEL CARPIO
Speech-Language Pathologist
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-2000
DR. ELIZABETH ANN MCNEILLY PHD
Psychologist (Clinical Child & Adolescent)
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-2000
JI YOUNG PARK
Behavior Analyst
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-8080
CATHERINE DICK PHD
Psychologist (Clinical)
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (585) 734-6867
DR. KATHERINE SILL BENJAMIN PHD
Psychologist
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-2000
ALISON LEIGH WRIGHT
Behavior Analyst
6901 SAND POINT WAY NE
SEATTLE, WA 98115
King County (206) 987-8080

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 Jennifer Sleeper's NPI number?

The NPI number for Jennifer Sleeper is 1003709171. It was assigned to this individual provider in the NPPES registry on May 29, 2025.

Where is Jennifer Sleeper located?

Jennifer Sleeper practices at 6901 Sand Point Way NE, Seattle, WA 98115. The listed phone number is (516) 444-5860.

What is Jennifer Sleeper's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Jennifer Sleeper enrolled in Medicare?

Yes. Jennifer Sleeper is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jennifer Sleeper's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Sleeper reassigns Medicare benefits to Seattle Children's Hospital (Seattle, WA). The 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 Jennifer Sleeper's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jennifer Sleeper accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Jennifer Sleeper 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 Jennifer Sleeper was last updated on August 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.