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

LOUIS MILLER STEIN
NPI 1669303087
Social Worker in Cambridge, MA

Active since May 26, 2026
1493 CAMBRIDGE ST, CAMBRIDGE, MA 02139(617) 665-1185 Get Directions Write a Review

NPPES record added: May 26, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Louis Miller Stein NPPES

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

LOUIS MILLER STEIN (NPI 1669303087) is an individual social worker in Cambridge, Massachusetts and active in the NPI registry since May 2026.

NPPES Registry Identity

NPI1669303087
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameLOUIS MILLER STEIN
Location Address1493 CAMBRIDGE STCambridge, MA 02139-1099
Mailing Address1493 Cambridge StCambridge, MA 02139-1099
Phone(617) 665-1185
Sole ProprietorNo
Enumeration DateMay 26, 2026
NPPES CertifiedMay 26, 2026
✔ NPI 1669303087 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
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.
1493 CAMBRIDGE ST, Cambridge, MA 02139
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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.

ZACHARY OLIFF DO
Emergency Medicine
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000
JACOB DYLAN WOLFE LICSW
Social Worker (Clinical)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1646
SARAH-JO SANTILLI RN
Registered Nurse
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 272-6455
JULIE LYNNE MERCER
Registered Nurse
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 591-4212
TAIANA KATSARAS LICSW
Social Worker (Clinical)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1185
ANGELA DE SILVA
Registered Nurse (Ambulatory Care)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000
RORY HAUSER
Registered Nurse (Neonatal, Low-Risk)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (802) 595-9868
CASEY TRAN
Occupational Therapist
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000

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 Louis Stein's NPI number?

The NPI number for Louis Stein is 1669303087. It was assigned to this individual provider in the NPPES registry on May 26, 2026.

Where is Louis Stein located?

Louis Stein practices at 1493 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 665-1185.

What is Louis Stein'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 Louis Stein was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.