Streff Associates

Streff Associates is a healthcare organization registered as Clinical Psychologist in Acton, MA, holding Type 2 (organization) NPI 1992128086 since 2014. The authorized official on file is Charles Streff, Co-Director.

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NPI	1992128086
Entity type	Organization (Type 2)
Legal business name	Streff Associates
Practice address	532 GREAT RD, Acton, MA, 01720
Phone	9782630439
Fax	9784863140
Enumeration date	2014-01-27
Last updated in NPPES	2014-01-27

Authorized official

Name	Charles Streff
Title	Co-Director
Phone	9782630439

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
103TC0700X	Clinical Psychologist	Primary	2084	MA

Copy-ready billing details

Provider: Streff Associates
NPI: 1992128086
Taxonomy: 103TC0700X (Clinical Psychologist)
Address: 532 GREAT RD, Acton, MA, 01720

Providers at this address

NPI	Name	Type	Specialty	Location
1245229988	Elaine Olmstead	Individual	Adult Psychiatric/Mental Health Clinical Nurse Specialist	Acton, MA
1932130598	Michael Macht-Greenberg	Individual	Psychologist	Acton, MA
1558389445	Daniel Sanford	Individual	Clinical Psychologist	Acton, MA
1114029733	Charles Streff	Individual	Psychologist	Acton, MA
1700921673	Charles E. Streff	Organization	Clinical Psychologist	Acton, MA
1073705927	Christopher Marobella	Individual	Clinical Social Worker	Acton, MA
1780870527	Susan Valente	Individual	Clinical Social Worker	Acton, MA
1285006734	Eleanor Fulton	Individual	Clinical Psychologist	Acton, MA

Verify this record

Cross-check NPI 1992128086 against the authoritative CMS record: view Streff Associates on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Where is Streff Associates located?

The practice location on file with NPPES is in Acton, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-01-27. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-01-27.