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ELLEN A. SLAWSBY ASSOCIATES INC
NPI 1619196086
Psychologist - Clinical in Newton, MA

Active since April 24, 2007
1280 CENTRE ST, SUITE 225, NEWTON, MA 02459(617) 630-1918(617) 507-5689 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ellen A. Slawsby Associates Inc NPPES

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

ELLEN A. SLAWSBY ASSOCIATES INC (NPI 1619196086) is a healthcare organization registered as a clinical in Newton, Massachusetts and active in the NPI registry since April 2007. The organization lists Ellen Allison Slawsby, President, as its authorized official.

NPPES Registry Identity

NPI1619196086
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameELLEN A. SLAWSBY ASSOCIATES INC
Location Address1280 CENTRE ST, SUITE 225Newton, MA 02459-1553
Mailing Address1280 Centre St, Suite 225Newton, MA 02459-1553 · (617) 630-1918 · Fax (617) 507-5689
Phone(617) 630-1918
Fax(617) 507-5689
Organization SubpartNo
Authorized OfficialEllen Allison SlawsbyPresident · (617) 630-1918
Enumeration DateApril 24, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1619196086 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MA · 7159
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1280 CENTRE ST, Newton, MA 02459
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ellen A. Slawsby Associates Inc 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 Ellen A. Slawsby Associates Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ellen Slawsby, PHD
Clinical Psychologist
NPI 1477666329
824 BOYLSTON STREET
Chestnut Hill, MA 02467
(617) 991-0102
✔ PECOS✔ Accepts Medicare2.4 mi

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 Ellen A. Slawsby Associates Inc's NPI number?

The NPI number for Ellen A. Slawsby Associates Inc is 1619196086. It was assigned to this organization in the NPPES registry on April 24, 2007.

Where is Ellen A. Slawsby Associates Inc located?

Ellen A. Slawsby Associates Inc is located at 1280 Centre St Suite 225, Newton, MA 02459. The listed phone number is (617) 630-1918.

What is Ellen A. Slawsby Associates Inc's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Ellen A. Slawsby Associates Inc enrolled in Medicare?

Yes. Ellen A. Slawsby Associates Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ellen A. Slawsby Associates Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Ellen A. Slawsby Associates Inc. 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.

What insurance does Ellen A. Slawsby Associates Inc accept?

Health plans from Anthem Blue Cross and Blue Shield list Ellen A. Slawsby Associates Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ellen A. Slawsby Associates Inc was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.