Organization Active NPI

Waves to Shore LLC

  • Mental Health Counselor
  • Washington, DC
National Provider Identifier
1902741341
Registry record updated Apr 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health CounselorTaxonomy code 101YM0800X
Legal business name
WAVES TO SHORE LLC
Practice address
4830 7TH St NW
Washington, DC 20011-4049
Phone
(240) 461-9349
NPI assigned
Apr 22, 2026
Last updated
Apr 22, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 22, 2026

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

Authorized official

Name
Kalliroi Matsakis, LICSWNPI 1790115210
Title
Owner
Phone
(240) 461-9349

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health CounselorGroup: 193400000X SINGLE SPECIALTY GROUP 101YM0800X Primary

Addresses

Primary practice location

4830 7TH St NW
Washington, DC 20011-4049

Mailing address

4830 7TH St NW
Washington, DC 20011-4049
Phone (240) 461-9349

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1776816000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1776816000000",
    "number": "1902741341",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4830 7TH ST NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200114049",
            "telephone_number": "240-461-9349"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4830 7TH ST NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200114049",
            "telephone_number": "240-461-9349"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WAVES TO SHORE LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-04-22",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A",
        "authorized_official_last_name": "MATSAKIS",
        "authorized_official_first_name": "KALLIROI",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "240-461-9349",
        "authorized_official_credential": "LICSW"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 2026; 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.