Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MS. PEGGY SUE FLANAGAN LICSW
NPI 1841231479
Social Worker - Clinical in Bellevue, WA

Active since June 08, 2006PECOS Enrolled
1601 116TH AVE NE, SUITE 104, BELLEVUE, WA 98004(425) 941-3736 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Ms. Peggy Sue Flanagan Licsw NPPES

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

MS. PEGGY SUE FLANAGAN LICSW (NPI 1841231479) is an individual clinical provider in Bellevue, Washington, licensed in Washington (LW00004345) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841231479
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. PEGGY SUE FLANAGANCredential: LICSW
Location Address1601 116TH AVE NE, SUITE 104Bellevue, WA 98004-3010
Mailing Address22705 Se 21st PlSammamish, WA 98075-9581 · (425) 392-9744 · Fax (425) 391-0846
Sole ProprietorNo
Enumeration DateJune 8, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1841231479 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in WA · LW00004345
Definition

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

1601 116TH AVE NE, Bellevue, WA 98004

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Ms. Peggy Sue Flanagan Licsw 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98004 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $63.67 – $189.37
Typical copayment $0.00 (range $15.91 – $47.34)
Most-billed visit code NA
Established Patient
$78.74 typical visit price
range $21.12 – $155.00
Typical copayment $19.68 (range $5.28 – $38.75)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Family)
1601 116TH AVE NE, SUITE 100
BELLEVUE, WA 98004
Physical Therapist
1601 116TH AVE NE, SUITE 101
BELLEVUE, WA 98004
Family Medicine
1601 116TH AVE NE, SUITE 111
BELLEVUE, WA 98004
Social Worker (Clinical)
1601 116TH AVE NE, SUITE 104
BELLEVUE, WA 98004
Social Worker (Clinical)
1601 116TH AVE NE, SUITE 114
BELLEVUE, WA 98004
Counselor (Mental Health)
1601 116TH AVE NE, STE 105
BELLEVUE, WA 98004
Social Worker (Clinical)
1601 116TH AVE NE
BELLEVUE, WA 98004
Marriage & Family Therapist
1601 116TH AVE NE, SUITE 115
BELLEVUE, WA 98004

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 Peggy Flanagan's NPI number?

The NPI number for Peggy Flanagan is 1841231479. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is Peggy Flanagan located?

Peggy Flanagan practices at 1601 116th Ave NE Suite 104, Bellevue, WA 98004. The listed phone number is (425) 941-3736.

What is Peggy Flanagan's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Peggy Flanagan enrolled in Medicare?

Yes. Peggy Flanagan is registered in the Medicare PECOS enrollment system.

What insurance does Peggy Flanagan accept?

Health plans from PacificSource Health Plans and Premera Blue Cross Blue Shield of Alaska list Peggy Flanagan 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 Peggy Flanagan was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.