Individual provider Active NPI

Mason E Vanrossum, LPC

  • Professional Counselor
  • Green Bay, WI
National Provider Identifier
1881433506
Registry record updated Nov 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Professional CounselorTaxonomy code 101YP2500X
License
11795 Issued in WI
Practice address
480 Pilgrim Way # 1300-a
Green Bay, WI 54304-5280
Phone
(920) 610-5119
Fax
(920) 610-5120
NPI assigned
May 22, 2024
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 26, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Counseling Psychologist 103TC1900X 7475-226 WI
Professional Counselor 101YP2500X 11795 WI Primary

Addresses

Primary practice location

480 Pilgrim Way # 1300-a
Green Bay, WI 54304-5280

Mailing address

1900 Silver Lake Rd NW Ste 110
New Brighton, MN 55112-1789
Phone (651) 628-9566

Other identifiers 1

IdentifierTypeStateIssuer
100277298MedicaidWI

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address mvanrossum446181@ewd.direct.hshs.org Direct
Direct Messaging Address mvanrossum446181@ewd.direct.hshs.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
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

Enrollment IDStateProvider typePAC IDDetails
I20250626003547 WI Practitioner - Mental Health Counselor 8123531829 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Mental Health Counselor
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

480 Pilgrim Way
1300 A
Green Bay, WI 54304-5280
Phone (920) 610-5119

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
11795WIMDProfessional Counselor
7475-226WIMDCounseling Psychologist

Practice roles

OrganizationSpecialtyStatusNew patients
Nystrom & Associates Counseling Wi., S.C. CurrentSince Aug 4, 2025 Accepting new patients
Nystrom & Associates Counseling Wi., S.C. CurrentSince Aug 4, 2025 Accepting new patients
St Vincent Hospital-Hospital Sisters-Third Order of St Francis PastSince May 1, 2024 Accepting new patients

Locations

1900 Silver Lake Rd NW
Ste 110
Saint Paul, MN 55112
Phone (651) 379-1718

480 Pilgrim Way
#1300A
Green Bay, WI 54304
Phone (920) 610-5119

480 Pilgrim Way
Ste 1300A
Green Bay, WI 54304
Phone (920) 610-5119

201 Main St
Ste 500
La Crosse, WI 54601
Phone (608) 668-4005

1001 Fourier Dr
Ste 200
Madison, WI 53717
Phone (608) 740-2001

Interoperability endpoints

  • Direct secure messaging: mvanrossum446181@ewd.direct.hshs.org

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1716336000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764115200000",
    "number": "1881433506",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1900 SILVER LAKE RD NW STE 110",
            "city": "NEW BRIGHTON",
            "state": "MN",
            "postal_code": "551121789",
            "telephone_number": "651-628-9566",
            "fax_number": "651-628-0411"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "480 PILGRIM WAY # 1300-A",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543045280",
            "telephone_number": "920-610-5119",
            "fax_number": "920-610-5120"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VANROSSUM",
        "first_name": "MASON",
        "middle_name": "E",
        "credential": "LPC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2024-05-22",
        "last_updated": "2025-11-26",
        "certification_date": "2025-11-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC1900X",
            "taxonomy_group": "",
            "desc": "Psychologist, Counseling",
            "state": "WI",
            "license": "7475-226",
            "primary": false
        },
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "WI",
            "license": "11795",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100277298",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mvanrossum446181@ewd.direct.hshs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "601 Third Street",
            "city": "De Pere",
            "state": "WI",
            "country_code": "US",
            "postal_code": "54115",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mvanrossum446181@ewd.direct.hshs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "3860 Monroe Rd",
            "city": "DE Pere",
            "state": "WI",
            "country_code": "US",
            "postal_code": "541158399",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Green Bay, WI

Sources for this page

Verify at the official NPI Registry.