STACEY Y WILLIAMSON-CAROTTA LMSW
NPI 1770625436
Social Worker - Clinical in Ann Arbor, MI

Active since February 12, 2007Opted out of Medicare · through Apr 1, 2028
343 S MAIN ST, ANN ARBOR, MI 48104(734) 412-7400 Get Directions Write a Review

NPPES record last updated: November 30, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 30, 2025, Aug 1, 2019 (2 updates tracked since 2019).

About Stacey Y Williamson-carotta Lmsw NPPES

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

STACEY Y WILLIAMSON-CAROTTA LMSW (NPI 1770625436) is an individual clinical provider in Ann Arbor, Michigan, licensed in Michigan (6801085963) and active in the NPI registry since February 2007. She has opted out of Medicare through April 1, 2028.

NPPES Registry Identity

NPI1770625436
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSTACEY Y WILLIAMSON-CAROTTACredential: LMSW
Location Address343 S MAIN STAnn Arbor, MI 48104-2137
Mailing Address343 S Main St Ste And215Ann Arbor, MI 48104-2137 · (734) 412-7400
Sole ProprietorNo
Enumeration DateFebruary 12, 2007
Last NPPES UpdateNovember 30, 20252 updates tracked since enumeration
NPPES CertifiedNovember 30, 2025
NPI 1770625436 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 MI · 6801085963
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.

343 S MAIN ST, Ann Arbor, MI 48104

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Stacey Y Williamson-carotta Lmsw has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2026 through April 1, 2028.

Opt-Out Effective DateApril 1, 2026
Opt-Out In Effect ThroughApril 1, 2028Opt-out affidavits renew automatically every two years unless cancelled

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.

Psychologist (Clinical)
343 S MAIN ST, STE. 209A
ANN ARBOR, MI 48104
Counselor (Professional)
343 S MAIN ST
ANN ARBOR, MI 48104

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 Stacey Williamson-carotta's NPI number?

The NPI number for Stacey Williamson-carotta is 1770625436. It was assigned to this individual provider in the NPPES registry on February 12, 2007.

Where is Stacey Williamson-carotta located?

Stacey Williamson-carotta practices at 343 S Main St, Ann Arbor, MI 48104. The listed phone number is (734) 412-7400.

What is Stacey Williamson-carotta's specialty?

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

Is Stacey Williamson-carotta enrolled in Medicare?

No. Stacey Williamson-carotta has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

What insurance does Stacey Williamson-carotta accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Stacey Williamson-carotta 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 Stacey Williamson-carotta was last updated on November 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.