MR. MICHAEL MARRERO LCSW
NPI 1821558354
Social Worker - Clinical in East Hartford, CT
About Mr. Michael Marrero Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MICHAEL MARRERO LCSW (NPI 1821558354) is an individual clinical provider in East Hartford, Connecticut, licensed in Connecticut (010525) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Michael Marrero Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Marrero reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hartford, CT 06112
- Reassigned Medicare billing, Connecticut enrollment
- 109 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 06118 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EAST HARTFORD, CT 06118
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 Michael Marrero's NPI number?
The NPI number for Michael Marrero is 1821558354. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is Michael Marrero located?
Michael Marrero practices at 281 Main St, East Hartford, CT 06118. The listed phone number is (860) 569-5900.
What is Michael Marrero's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Michael Marrero enrolled in Medicare?
Yes. Michael Marrero is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Marrero's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Marrero reassigns Medicare benefits to State Of Connecticut (Hartford, CT). 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 Michael Marrero'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 Michael Marrero was last updated on March 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.