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SARAH WILLIAMSON MSW,LCSW
NPI 1205283892
Social Worker - Clinical in Greeley, CO

Active since May 24, 2016PECOS EnrolledAccepts Medicare Assignment
1023 39TH AVE STE K, GREELEY, CO 80634(970) 251-8649 Get Directions Write a Review

NPPES record last updated: March 7, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 7, 2025, May 8, 2023 (2 updates tracked since 2023).

About Sarah Williamson Msw,lcsw NPPES

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

SARAH WILLIAMSON MSW,LCSW (NPI 1205283892) is an individual clinical provider in Greeley, Colorado and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1205283892
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSARAH WILLIAMSONCredential: MSW,LCSW
Location Address1023 39TH AVE STE KGreeley, CO 80634-2502
Mailing Address1261 Wild Basin RdSeverance, CO 80550-2402 · (970) 251-8649
Phone(970) 251-8649
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateMay 24, 2016
Last NPPES UpdateMarch 7, 20252 updates tracked since enumeration
NPPES CertifiedMarch 7, 2025
✔ NPI 1205283892 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
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.
1023 39TH AVE STE K, Greeley, CO 80634
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health.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

Sarah Williamson Msw,lcsw 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.

PECOS PAC ID2961924089
PECOS Enrollment IDI20250318003559
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 Sarah Williamson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Range Behavioral Health
1.6 mi
Rehabilitation, Substance Use Disorder
2350 W 3RD STREET RD
Greeley, CO 80631
  • Reassigned Medicare billing, Colorado enrollment
  • 29 clinicians in this Medicare group
NPI 1073128476 (970) 347-2120

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 80634 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 $58.06 – $174.82
Typical copayment $0.00 (range $14.51 – $43.70)
Most-billed visit code NA
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
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.

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 Sarah Williamson's NPI number?

The NPI number for Sarah Williamson is 1205283892. It was assigned to this individual provider in the NPPES registry on May 24, 2016.

Where is Sarah Williamson located?

Sarah Williamson practices at 1023 39th Ave Ste K, Greeley, CO 80634. The listed phone number is (970) 251-8649.

What is Sarah Williamson's specialty?

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

Is Sarah Williamson enrolled in Medicare?

Yes. Sarah Williamson 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 Sarah Williamson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Williamson reassigns Medicare benefits to North Range Behavioral Health (Greeley, 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 Sarah Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sarah Williamson accept?

Health plans from Select Health list Sarah Williamson 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 Sarah Williamson was last updated on March 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.