MYLINH TRAN HIERONYMUS MSW, LICSW
NPI 1699434878
Social Worker - Clinical in Newton, MA

Active since December 15, 2021PECOS Enrolled
109 OAK ST STE 201, NEWTON, MA 02464(617) 221-3278 Get Directions Write a Review

NPPES record last updated: July 7, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 7, 2025, Dec 15, 2021 (2 updates tracked since 2021).

About Mylinh Tran Hieronymus Msw, Licsw NPPES

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

MYLINH TRAN HIERONYMUS MSW, LICSW (NPI 1699434878) is an individual clinical provider in Newton, Massachusetts, licensed in Massachusetts (126078) and active in the NPI registry since December 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Brighton.

NPPES Registry Identity

NPI1699434878
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMYLINH TRAN HIERONYMUSCredential: MSW, LICSW
Location Address109 OAK ST STE 201Newton, MA 02464-1493
Mailing Address109 Oak St Ste 201Newton, MA 02464-1493 · (617) 221-3278
Sole ProprietorNo
Enumeration DateDecember 15, 2021
Last NPPES UpdateJuly 7, 20252 updates tracked since enumeration
NPPES CertifiedJuly 7, 2025
NPI 1699434878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses Licensed in MA · 126078 Licensed in MA · 226521
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.
109 OAK ST STE 201, Newton, MA 02464

Secondary Practice Location 1

Location 138 Newcastle RdBrighton, MA 02135-1817 · Phone (781) 716-7541

Accepted 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)

Mylinh Tran Hieronymus Msw, Licsw 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02464 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 $63.72 – $189.86
Typical copayment $0.00 (range $15.93 – $47.46)
Most-billed visit code NA
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
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.

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.

Counselor (Mental Health)
109 OAK ST STE 201
NEWTON, MA 02464
Counselor
109 OAK ST STE 201
NEWTON, MA 02464
Social Worker (Clinical)
109 OAK ST STE 201
NEWTON, MA 02464
Counselor (Mental Health)
109 OAK ST STE 201
NEWTON, MA 02464
Counselor (Mental Health)
109 OAK ST STE 201
NEWTON, MA 02464
Counselor (Mental Health)
109 OAK ST STE 201
NEWTON, MA 02464
Social Worker (Clinical)
109 OAK ST STE 201
NEWTON, MA 02464
Social Worker (Clinical)
109 OAK ST STE 201
NEWTON, MA 02464

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 Mylinh Hieronymus's NPI number?

The NPI number for Mylinh Hieronymus is 1699434878. It was assigned to this individual provider in the NPPES registry on December 15, 2021.

Where is Mylinh Hieronymus located?

Mylinh Hieronymus practices at 109 Oak St Ste 201, Newton, MA 02464. The listed phone number is (617) 221-3278.

What is Mylinh Hieronymus's specialty?

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

Is Mylinh Hieronymus enrolled in Medicare?

Yes. Mylinh Hieronymus is registered in the Medicare PECOS enrollment system.

What insurance does Mylinh Hieronymus accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Mylinh Hieronymus 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 Mylinh Hieronymus was last updated on July 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.