Nechemya Gruenstein, LPC

Primary specialty

Professional CounselorTaxonomy code 101YP2500X

License

9220 Issued in CT

Practice address

142 Griggs St
Waterbury, CT 06704-3110

Phone

(203) 574-9000

NPI assigned

Sep 19, 2024

Sex

Male

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

Enrolled in CT

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

Specialty

Mental Health Counselor

Education

Other, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Upward Counseling PLLC

  • Professional Counselor
  • Waterbury, CT
  • NPI 1235812652
  Medicare reassignment
• Wellmore, Inc

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Waterbury, CT
  • NPI 1336407915
  NPD (past)

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

{
    "created_epoch": "1726704000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776211200000",
    "number": "1982431128",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "141 E MAIN ST",
            "city": "WATERBURY",
            "state": "CT",
            "postal_code": "067022310",
            "telephone_number": "203-574-9000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "142 GRIGGS ST",
            "city": "WATERBURY",
            "state": "CT",
            "postal_code": "067043110",
            "telephone_number": "203-574-9000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRUENSTEIN",
        "first_name": "NECHEMYA",
        "credential": "LPC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2024-09-19",
        "last_updated": "2026-04-15",
        "certification_date": "2026-04-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "CT",
            "license": "9220",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Claudia L Grogean, M.D.
• Blanche J Gronowski, LCSW
• Grove Manor Nursing Home, Inc.
• Growing Steps Behavioral Services LLC
• Doug Gruber, LADC
• Jazmin Marie Grullon, LPC
• Jessica Guallpa
• Tannia Guaman
• Dana Guan
• Marie Nadia Guercy

• Professional Counselor in Waterbury, CT
• Providers in Waterbury, CT by specialty
• Professional Counselor in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 15, 2026; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.