NPIMap

Organization Active NPI

Nuweights

  • Clinical Social Worker
  • Alexandria, VA
National Provider Identifier
1720355241
Registry record updated Mar 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
Legal business name
NUWEIGHTS
Practice address
3331 Duke Street
Alexandria, VA 22314
Phone
(703) 552-2722
NPI assigned
Nov 29, 2011
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Mar 10, 2026

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

Authorized official

Name
Mrs. Christine Haas, MS CNSNPI 1740444843
Title
Ceo/Owner
Phone
(571) 241-7000

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 3

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social WorkerGroup: 193200000X MULTI-SPECIALTY GROUP 1041C0700X Primary
NutritionistGroup: 193200000X MULTI-SPECIALTY GROUP 133N00000X
Registered DietitianGroup: 193200000X MULTI-SPECIALTY GROUP 133V00000X

Addresses

Primary practice location

3331 Duke Street
Alexandria, VA 22314

Mailing address

P.O. Box 1833
Ashburn, VA 20146-1833
Phone (703) 552-2722

Other names 1

  • Washington Nutrition Group Doing business as

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20130828000831 DC Part B Supplier - Clinic/Group Practice 5991953259 Receives reassigned benefits from 1 practitioner
Practice locations: Towson, MD; Washington, DC; Silver Spring, MD; McLean, VA; Bethesda, MD; Alexandria, VA

National Provider Directory

National Provider Directory

Locations

1430 K St NW
Washington, DC 20005
Phone (202) 628-8855

1430 K St NW
Ste 800
Washington, DC 20005
Phone (202) 223-6630

5415 W Cedar Ln
Ste 208B
Bethesda, MD 20814
Phone (240) 342-6449

2121 Eisenhower Ave
Ste 200
Alexandria, VA 22314
Phone (703) 519-0901

5999 Stevenson Ave
Ste 405
Alexandria, VA 22304
Phone (434) 826-5293

3335 Duke St
Alexandria, VA 22314
Phone (703) 370-1800

2121 Eisenhower Ave
Alexandria, VA 22314
Phone (540) 845-9640

20130 Lakeview Center Plz
Ashburn, VA 20147
Phone (703) 840-5467

626 Grant St
Ste B
Herndon, VA 20170

1360 Beverly Rd
McLean, VA 22101
Phone (571) 297-4629

1360 Beverly Rd
Ste 102
McLean, VA 22101
Phone (571) 241-7000

Practitioners & affiliated clinicians

Practitioners 18

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 18

NPI Registry JSON

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

{
    "created_epoch": "1322524800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773100800000",
    "number": "1720355241",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "P.O. BOX 1833",
            "city": "ASHBURN",
            "state": "VA",
            "postal_code": "201461833",
            "telephone_number": "703-552-2722"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3331 DUKE STREET",
            "city": "ALEXANDRIA",
            "state": "VA",
            "postal_code": "22314",
            "telephone_number": "703-552-2722"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NUWEIGHTS",
        "organizational_subpart": "NO",
        "enumeration_date": "2011-11-29",
        "last_updated": "2026-03-10",
        "certification_date": "2026-03-10",
        "status": "A",
        "authorized_official_last_name": "HAAS",
        "authorized_official_first_name": "CHRISTINE",
        "authorized_official_title_or_position": "CEO/OWNER",
        "authorized_official_telephone_number": "571-241-7000",
        "authorized_official_name_prefix": "Mrs.",
        "authorized_official_credential": "MS CNS"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "133N00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nutritionist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dietitian, Registered",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Washington Nutrition Group",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Alexandria, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 10, 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.