MARGARET M SWEENEY LICSW
NPI 1205353141
Social Worker - Clinical in Seattle, WA
About Margaret M Sweeney Licsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET M SWEENEY LICSW (NPI 1205353141) is an individual clinical provider in Seattle, Washington, licensed in Washington (LW60469510) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Margaret M Sweeney Licsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Margaret Sweeney reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mountlake Terrace, WA 98043
- Reassigned Medicare billing, Washington enrollment
- 777 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Margaret Sweeney's NPI number?
The NPI number for Margaret Sweeney is 1205353141. It was assigned to this individual provider in the NPPES registry on August 22, 2017.
Where is Margaret Sweeney located?
Margaret Sweeney practices at 600 N 36th St Ste 310, Seattle, WA 98103. The listed phone number is (206) 267-8283.
What is Margaret Sweeney's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Margaret Sweeney enrolled in Medicare?
Yes. Margaret Sweeney is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Margaret Sweeney's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Sweeney reassigns Medicare benefits to Mindful Therapy Group PC (Mountlake Terrace, 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 Margaret Sweeney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Margaret Sweeney was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Margaret M Sweeney, LICSW · NPI 1205353141
Clinical provider in Seattle, Washington. Individual provider, active in the CMS NPPES registry since August 22, 2017.
## Identity
- **NPI:** 1205353141 (Entity type: Individual)
- **Enumerated:** August 22, 2017
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** LW60469510 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 600 N 36TH ST STE 310, Seattle, WA 98103-8698
- **Phone:** (206) 267-8283 · **Fax:** (206) 267-8283
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Mindful Therapy Group PC (NPI 1316238678, Mountlake Terrace, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** March 17, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1205353141) · Data from the CMS NPPES public registry.