Individual provider Active NPI

Olivia R Tisa, LGSW

  • Social Worker
  • Washington, DC
National Provider Identifier
1649138553
Registry record updated Jan 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
LG200002837 Issued in DC
Practice address
4400 Macarthur Blvd NW Ste 300
Washington, DC 20007-2521
Phone
(202) 455-8440
NPI assigned
Jan 12, 2026
Last updated
Jan 12, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 12, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X LG200002837 DC Primary

Addresses

Primary practice location

4400 Macarthur Blvd NW Ste 300
Washington, DC 20007-2521

Mailing address

2425 17TH St NW Apt 21
Washington, DC 20009-2798
Phone (708) 846-0478

Medicare participation

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

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 2020
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

950 N Glebe Rd
Suite 700
Arlington, VA 22203-4173

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
LG200002837DCMDSocial Worker

NPI Registry JSON

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

{
    "created_epoch": "1768176000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768176000000",
    "number": "1649138553",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2425 17TH ST NW APT 21",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200092798",
            "telephone_number": "708-846-0478"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4400 MACARTHUR BLVD NW STE 300",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200072521",
            "telephone_number": "202-455-8440"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TISA",
        "first_name": "OLIVIA",
        "middle_name": "R",
        "credential": "LGSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-01-12",
        "last_updated": "2026-01-12",
        "certification_date": "2026-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "DC",
            "license": "LG200002837",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.