Lia Wiedemann

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

Practice address

156 5TH Ave Ste 822
New York, NY 10010-7765

Phone

(347) 389-3920

NPI assigned

Nov 12, 2025

Last updated

Nov 23, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

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

• Katherine Casey LCSW LLC

  dba The Root Therapy NYC

  • Mental Health Counselor
  • New York, NY
  • NPI 1386117703
  NPD (past)

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

{
    "created_epoch": "1762905600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763856000000",
    "number": "1164382172",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7 HOWARD PL",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112156008"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "156 5TH AVE STE 822",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100107765",
            "telephone_number": "347-389-3920"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WIEDEMANN",
        "first_name": "LIA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-11-12",
        "last_updated": "2025-11-23",
        "certification_date": "2025-11-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "NY",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alex K Wie
• Ewelina Wiecek, LMSW
• Lisa Silvia Wiechmann, M.D.
• Michael Joseph Wiechowski, M.D.
• Stanley Wieckowski
• Thomas Georg Wiedemann, MD, DDS
• Baruch Michael Wieder, M.D.
• Genielle Wieder, OTR/L
• Kenneth Wieder, D.D.S.
• Joanna Wiederhorn

• Mental Health Counselor in New York, NY
• Providers in New York, NY by specialty
• Mental Health Counselor in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 23, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.