Individual provider Active NPI

Erik Reynold Fritzen, LLMSW

  • Clinical Social Worker
  • Portage, MI
National Provider Identifier
1750256517
Registry record updated Oct 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
Practice address
8080 Moorsbridge Rd Ste 102
Portage, MI 49024-4422
Phone
(269) 264-8020
NPI assigned
Oct 9, 2025
Last updated
Oct 9, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X Primary

Addresses

Primary practice location

8080 Moorsbridge Rd Ste 102
Portage, MI 49024-4422

Mailing address

3583 Liverpool Ave
Kalamazoo, MI 49009-5280

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Michigan Integrated Therapies CurrentSince Oct 12, 2025 Accepting new patients

Locations

8080 Moorsbridge Rd
Ste 102
Portage, MI 49024
Phone (269) 264-8020

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1759968000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759968000000",
    "number": "1750256517",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3583 LIVERPOOL AVE",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490095280"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8080 MOORSBRIDGE RD STE 102",
            "city": "PORTAGE",
            "state": "MI",
            "postal_code": "490244422",
            "telephone_number": "269-264-8020"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FRITZEN",
        "first_name": "ERIK",
        "middle_name": "REYNOLD",
        "credential": "LLMSW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-10-09",
        "last_updated": "2025-10-09",
        "certification_date": "2025-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portage, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 9, 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.