Wellness Health Services, LLC

Primary specialty

Community/Behavioral Health AgencyTaxonomy code 251S00000X

Legal business name

WELLNESS HEALTH SERVICES, LLC

Doing business as

The ARK of MD
The Ark of DC

Practice address

5900 York Rd Ste 206
Baltimore, MD 21212-3098

Phone

(202) 489-0615

Fax

(202) 379-9220

NPI assigned

Nov 13, 2020

Last updated

Feb 13, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Nadine Arnal Toko

Title

Chairwoman

Phone

(202) 489-0615

Specialties & licenses 14

Addresses

Other names 2

• The ARK of MD Doing business as
• The Ark of DC Doing business as

Medicare fee-for-service enrollment

Enrolled in DC

Enrollment records 1

Other NPIs on the same Medicare enrollment 1

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

• Wellness Health Services, LLC

  dba The Ark of DC

  • Home Health Agency
  • Washington, DC
  • NPI 1033685953

  O20190201000022

  Same enrollment

Tax ID family

The Ark of DC3 organizations share this tax ID, including this one

Other organizations with this tax ID 2

Organizations that report the same tax identification number in the National Provider Directory.

• Wellness Health Services, LLC

  dba The ARK of MD

  • Adult Mental Health Clinic/Center
  • Baltimore, MD
  • NPI 1811607526
  NPD tax ID
• Wellness Health Services, LLC

  dba The Ark of DC

  • Home Health Agency
  • Washington, DC
  • NPI 1033685953
  NPD tax ID

Practitioners 3

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.

• Gedeon Longtchi, FNP

  • Psychiatric/Mental Health Nurse Practitioner
  • Crofton, MD
  • NPI 1689157331

  Family

  NPD
• Gissella Mana

  • Acute Care Nurse Practitioner
  • Columbia, MD
  • NPI 1033473582
  NPD
• Helen A. Viban, NP

  • Psychiatric/Mental Health Nurse Practitioner
  • Washington, DC
  • NPI 1598020877
  NPD

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

{
    "created_epoch": "1605225600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1770940800000",
    "number": "1366044398",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11202 MARWOOD HILL DR",
            "city": "POTOMAC",
            "state": "MD",
            "postal_code": "208541241",
            "telephone_number": "202-489-0615"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5900 YORK RD STE 206",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212123098",
            "telephone_number": "202-489-0615",
            "fax_number": "202-379-9220"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WELLNESS HEALTH SERVICES, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2020-11-13",
        "last_updated": "2026-02-13",
        "certification_date": "2026-02-13",
        "status": "A",
        "authorized_official_last_name": "TOKO",
        "authorized_official_first_name": "NADINE",
        "authorized_official_middle_name": "ARNAL",
        "authorized_official_title_or_position": "CHAIRWOMAN",
        "authorized_official_telephone_number": "202-489-0615"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "163WP0808X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Registered Nurse, Psychiatric/Mental Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2084P0015X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychiatry & Neurology, Psychosomatic Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2084P0804X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "251E00000X",
            "taxonomy_group": "",
            "desc": "Home Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "251S00000X",
            "taxonomy_group": "",
            "desc": "Community/Behavioral Health",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "261QR0401X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Rehabilitation, Comprehensive Outpatient Rehabilitation Facility (CORF)",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QR0405X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Rehabilitation, Substance Use Disorder",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "3245S0500X",
            "taxonomy_group": "",
            "desc": "Substance Abuse Rehabilitation Facility, Substance Abuse Treatment, Children",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nurse Practitioner, Family",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "364SP0808X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Clinical Nurse Specialist, Psychiatric/Mental Health",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "The ARK of MD",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "The Ark of DC",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "The Ark of DC",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Wellness and Peace
• Wellness Checkers Inc
• Wellness Health Service LLC (The ARK of Maryland)
• Wellness Health Services LLC
• Wellness Health Services LLC
• Wellness Health Services, LLC (The ARK of MD)
• Wellness Healthcare Inc
• Wellness Mind Healthcare Services LLC
• Wellness Path Therapy and Consulting
• Wellness Pharmacy

• Community/Behavioral Health Agency in Baltimore, MD
• Providers in Baltimore, MD by specialty
• Community/Behavioral Health Agency in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.