DIANE MASTROIANNI OT
NPI 1801322391
Occupational Therapist in Monson, MA

Active since May 03, 2017
434 LOWER HAMPDEN RD, MONSON, MA 01057(413) 267-5326 Get Directions Write a Review

NPPES record last updated: May 3, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Diane Mastroianni Ot NPPES

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

DIANE MASTROIANNI OT (NPI 1801322391) is an individual occupational therapist in Monson, Massachusetts, licensed in Massachusetts (10458) and active in the NPI registry since May 2017. She is a graduate of Other (2011).

NPPES Registry Identity

NPI1801322391
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameDIANE MASTROIANNICredential: OT
Location Address434 LOWER HAMPDEN RDMonson, MA 01057-9739
Mailing Address434 Lower Hampden RdMonson, MA 01057-9739 · (413) 267-5326
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMay 3, 2017
✔ NPI 1801322391 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License✔ Licensed in MA · 10458
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
434 LOWER HAMPDEN RD, Monson, MA 01057

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane Mastroianni Ot is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3971870387
PECOS Enrollment IDI20170606000562

Medicare Billing Reassignment

Medicare enrollment records show Diane Mastroianni reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rehabilitation Practitioner
799 W BOYLSTON ST, SUITE 7
Worcester, MA 01606
  • Reassigned Medicare billing, Massachusetts enrollment
  • 12 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.

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 Diane Mastroianni's NPI number?

The NPI number for Diane Mastroianni is 1801322391. It was assigned to this individual provider in the NPPES registry on May 3, 2017.

Where is Diane Mastroianni located?

Diane Mastroianni practices at 434 Lower Hampden Rd, Monson, MA 01057. The listed phone number is (413) 267-5326.

What is Diane Mastroianni's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Diane Mastroianni enrolled in Medicare?

Yes. Diane Mastroianni is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Mastroianni's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Mastroianni reassigns Medicare benefits to Mab Community Services, Inc (Worcester, MA). 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 Diane Mastroianni's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Diane Mastroianni accept?

Health plans from Anthem Blue Cross and Blue Shield list Diane Mastroianni 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 Diane Mastroianni was last updated on May 3, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.