Mylinh Tran Hieronymus, MSW, LICSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

126078 Issued in MA

Practice address

109 Oak St Ste 201
Newton, MA 02464-1493

Phone

(617) 221-3278

NPI assigned

Dec 15, 2021

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Metro Boston Mental Health, PLLC

  • Mental Health Counselor
  • Newton, MA
  • NPI 1184313397
  Medicare reassignment NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1639526400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751846400000",
    "number": "1699434878",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "109 OAK ST STE 201",
            "city": "NEWTON",
            "state": "MA",
            "postal_code": "024641493",
            "telephone_number": "617-221-3278"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "109 OAK ST STE 201",
            "city": "NEWTON",
            "state": "MA",
            "postal_code": "024641493",
            "telephone_number": "617-221-3278"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "38 Newcastle Rd",
            "address_purpose": "LOCATION",
            "city": "Brighton",
            "state": "MA",
            "postal_code": "021351817",
            "country_code": "US",
            "telephone_number": "781-716-7541",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HIERONYMUS",
        "first_name": "MYLINH",
        "middle_name": "TRAN",
        "credential": "MSW, LICSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-12-15",
        "last_updated": "2025-07-07",
        "certification_date": "2025-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "226521",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "126078",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Monika E Herrick Ostroff, L.I.C.S.W.
• Mark D Hershey, MD
• Erin M Heyl, OTR/L
• C.Michael Hiam, PH.D.
• Mykael Hicks
• Mackenzie Lyn Higgins
• Shelby Lynn Higgins, DNP, PMHNP-BC
• Higher Self Therapy PLLC
• Ellen S Highfield, LIC. AC.
• Astrid H Hildebrand

• Clinical Social Worker in Newton, MA
• Providers in Newton, MA by specialty
• Clinical Social Worker in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 7, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.