Individual provider Active NPI

Marissa Kathleen Tenney

  • Mental Health Counselor
  • Silverdale, WA
National Provider Identifier
1689272866
Registry record updated Oct 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health CounselorTaxonomy code 101YM0800X
Practice address
3888 NW Randall Way Ste 201
Silverdale, WA 98383-7847
Phone
(360) 698-5883
NPI assigned
Oct 11, 2020
Last updated
Oct 28, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 28, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health Counselor 101YM0800X Primary

Addresses

Primary practice location

3888 NW Randall Way Ste 201
Silverdale, WA 98383-7847

Mailing address

17786 Douglas Rd NW
Poulsbo, WA 98370-8245
Phone (360) 994-8280

Other names 1

  • Marissa Kathleen Hewerdine Former name

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
MCS Counseling Group LLC Mental Health CurrentSince Nov 8, 2025 Accepting new patients

Locations

3888 NW Randall Way
Ste 201
Silverdale, WA 98383
Phone (360) 698-5883

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": "1602374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761609600000",
    "number": "1689272866",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17786 DOUGLAS RD NW",
            "city": "POULSBO",
            "state": "WA",
            "postal_code": "983708245",
            "telephone_number": "360-994-8280"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3888 NW RANDALL WAY STE 201",
            "city": "SILVERDALE",
            "state": "WA",
            "postal_code": "983837847",
            "telephone_number": "360-698-5883"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TENNEY",
        "first_name": "MARISSA",
        "middle_name": "KATHLEEN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-10-11",
        "last_updated": "2025-10-28",
        "certification_date": "2025-10-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARISSA",
            "last_name": "HEWERDINE",
            "middle_name": "KATHLEEN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Silverdale, WA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 28, 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.