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LIFEWORK TRANSITIONS, LLC
NPI 1477919587
Clinic/Center - Mental Health (Including Community Mental Health Center) in Saint Louis, MO

Active since January 05, 2016
12401 OLIVE BLVD, SUITE 205, SAINT LOUIS, MO 63141(314) 477-3144(314) 395-4044 Get Directions Write a Review

NPPES record last updated: January 5, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Lifework Transitions, Llc NPPES

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

LIFEWORK TRANSITIONS, LLC (NPI 1477919587) is a healthcare organization registered as a mental health (including community mental health center) in Saint Louis, Missouri and active in the NPI registry since January 2016. The organization lists Sylvia Nissenboim, Owner, as its authorized official.

NPPES Registry Identity

NPI1477919587
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameLIFEWORK TRANSITIONS, LLC
Location Address12401 OLIVE BLVD, SUITE 205Saint Louis, MO 63141-5448
Mailing Address10435 Arthur PlSaint Louis, MO 63131-2708 · (314) 477-3144 · Fax (314) 395-4044
Phone(314) 477-3144
Fax(314) 395-4044
Organization SubpartNo
Authorized OfficialSylvia NissenboimOwner · (314) 477-3144
Enumeration DateJanuary 5, 2016
✔ NPI 1477919587 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Mental Health (Including Community Mental Health Center)Ambulatory Health Care Facilities
Taxonomy Code261QM0801X
License✔ Licensed in MO · 730
12401 OLIVE BLVD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 1

Medicare PINMA1668MO

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lifework Transitions, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Lifework Transitions, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sylvia Nissenboim, LCSW
Clinical Social Worker
NPI 1295975118
12401 OLIVE BLVD
Saint Louis, MO 63141
(314) 477-3144
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Lifework Transitions, LLC's NPI number?

The NPI number for Lifework Transitions, LLC is 1477919587. It was assigned to this organization in the NPPES registry on January 5, 2016.

Where is Lifework Transitions, LLC located?

Lifework Transitions, LLC is located at 12401 Olive Blvd Suite 205, Saint Louis, MO 63141. The listed phone number is (314) 477-3144.

What is Lifework Transitions, LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

Is Lifework Transitions, LLC enrolled in Medicare?

Yes. Lifework Transitions, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Lifework Transitions, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Lifework Transitions, LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Lifework Transitions, LLC was last updated on January 5, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.