Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

CASSANDRA E MITSOS
NPI 1740185305
Social Worker in Waterbury, CT

Active since October 13, 2026
141 E MAIN ST, WATERBURY, CT 06702(203) 574-9000(203) 574-9006 Get Directions Write a Review

NPPES record added: October 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Cassandra E Mitsos NPPES

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

CASSANDRA E MITSOS (NPI 1740185305) is an individual social worker in Waterbury, Connecticut, licensed in Connecticut (12296) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1740185305
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameCASSANDRA E MITSOS
Location Address141 E MAIN STWaterbury, CT 06702-2310
Mailing Address141 E Main StWaterbury, CT 06702-2310 · (203) 574-9000
Fax(203) 574-9006
Sole ProprietorNo
Enumeration DateOctober 13, 2026
Last NPPES UpdateOctober 14, 2026
NPPES CertifiedOctober 14, 2026
✔ NPI 1740185305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CT · 12296
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
141 E MAIN ST, Waterbury, CT 06702

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.

Counselor (Mental Health)
141 E MAIN ST
WATERBURY, CT 06702
Community Health Worker
141 E MAIN ST
WATERBURY, CT 06702
Community Health Worker
141 E MAIN ST
WATERBURY, CT 06702
Social Worker
141 E MAIN ST
WATERBURY, CT 06702
Counselor
141 E MAIN ST
WATERBURY, CT 06702
Counselor (Mental Health)
141 E MAIN ST
WATERBURY, CT 06702
Student in an Organized Health Care Education/Training Program
141 E MAIN ST
WATERBURY, CT 06702
Counselor
141 E MAIN ST
WATERBURY, CT 06702

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 Cassandra Mitsos's NPI number?

The NPI number for Cassandra Mitsos is 1740185305. It was assigned to this individual provider in the NPPES registry on October 13, 2026.

Where is Cassandra Mitsos located?

Cassandra Mitsos practices at 141 E Main St, Waterbury, CT 06702. The listed phone number is (203) 574-9000.

What is Cassandra Mitsos's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Cassandra Mitsos was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days 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.