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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. ELIZABETH DUTILLY MASON LCSW
NPI 1255007670
Social Worker - Clinical in Monroe, CT

Active since August 17, 2021PECOS Enrolled
81.53/100
CMS Quality Rating
755 MAIN STREET, BUILDING 5, OFFICE 2, MONROE, CT 06468(203) 307-5496 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 6, 2026, Aug 17, 2021 (2 updates tracked since 2021).

About Ms. Elizabeth Dutilly Mason Lcsw NPPES

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

MS. ELIZABETH DUTILLY MASON LCSW (NPI 1255007670) is an individual clinical provider in Monroe, Connecticut, licensed in Connecticut (11637) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Milford.

NPPES Registry Identity

NPI1255007670
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. ELIZABETH DUTILLY MASONCredential: LCSW
Location Address755 MAIN STREET, BUILDING 5, OFFICE 2Monroe, CT 06468
Mailing Address755 Main Street, Building 5, Office 2Monroe, CT 06468 · (203) 307-5496
Phone(203) 307-5496
Sole ProprietorYes
Enumeration DateAugust 17, 2021
Last NPPES UpdateOctober 6, 20262 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1255007670 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CT · 11637
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
755 MAIN STREET, Monroe, CT 06468
Open in Google Maps ↗

Other Names 1

Professional Name (2)Lizabeth Mason Lcsw

Secondary Practice Location 1

Location 1102 Lansdale Avenue, Apt GMilford, CT 06460 · Phone (203) 307-5496

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Elizabeth Dutilly Mason Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
131 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06468 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $60.82 – $183.10
Typical copayment $0.00 (range $15.20 – $45.77)
Most-billed visit code NA
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.53/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.96
Promoting Interoperability88
Improvement Activities40
Cost54.38

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SARAH JORDAN M.A., CCC-SLP, IBCLC
Speech-Language Pathologist
755 MAIN STREET, BUILDLING 5, SUITE 6
MONROE, CT 06468
Greater Bridgeport Planning Region (202) 212-8606
LITTLE MONKEY SPEECH AND FEEDING THERAPY
Speech-Language Pathologist
755 MAIN STREET, BUILDING 5, SUITE 6
MONROE, CT 06468
Greater Bridgeport Planning Region (202) 212-8606
CURIOUS MINDS COUNSELING
Marriage & Family Therapist
755 MAIN STREET, BUILDING 3, OFFICE 15
MONROE, CT 06468
Greater Bridgeport Planning Region (203) 666-6094

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 Elizabeth Mason's NPI number?

The NPI number for Elizabeth Mason is 1255007670. It was assigned to this individual provider in the NPPES registry on August 17, 2021. The provider is also known as Lizabeth Mason Lcsw.

Where is Elizabeth Mason located?

Elizabeth Mason practices at 755 Main Street Building 5, Office 2, Monroe, CT 06468. The listed phone number is (203) 307-5496.

What is Elizabeth Mason's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Elizabeth Mason enrolled in Medicare?

Yes. Elizabeth Mason is registered in the Medicare PECOS enrollment system.

What insurance does Elizabeth Mason accept?

Health plans from Providence Health Plan list Elizabeth Mason 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 Elizabeth Mason was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.