MS. SADIE LOUISE WILLIAMS MSW
NPI 1821275223
Social Worker - Clinical in Grand Junction, CO
About Ms. Sadie Louise Williams Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. SADIE LOUISE WILLIAMS MSW (NPI 1821275223) is an individual clinical provider in Grand Junction, Colorado, licensed in Colorado (1521) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Accepted Insurance
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
Ms. Sadie Louise Williams Msw 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 Sadie Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80202
- Reassigned Medicare billing, Colorado enrollment
- 940 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 81501 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GRAND JUNCTION, CO 81501
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 Sadie Williams's NPI number?
The NPI number for Sadie Williams is 1821275223. It was assigned to this individual provider in the NPPES registry on January 28, 2008. The provider is also known as Ms. Sadie Louise Adams Lcsw.
Where is Sadie Williams located?
Sadie Williams practices at 2425 Teller Ave, Grand Junction, CO 81501. The listed phone number is (970) 234-8882.
What is Sadie Williams's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Sadie Williams enrolled in Medicare?
Yes. Sadie Williams 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 Sadie Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sadie Williams reassigns Medicare benefits to Sondermind Provider Network LLC (Denver, CO). 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 Sadie Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sadie Williams accept?
Health plans from Oscar Insurance Company list Sadie Williams 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 Sadie Williams was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ms. Sadie Louise Williams, MSW · NPI 1821275223
Clinical provider in Grand Junction, Colorado. Individual provider, active in the CMS NPPES registry since January 28, 2008.
## Identity
- **NPI:** 1821275223 (Entity type: Individual)
- **Enumerated:** January 28, 2008
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 1521 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2425 TELLER AVE, Grand Junction, CO 81501-5141
- **Phone:** (970) 234-8882
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Sondermind Provider Network LLC (NPI 1760854442, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** July 6, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1821275223) · Data from the CMS NPPES public registry.