Individual provider Active NPI

Katharine P Trewartha

  • Clinical Social Worker
  • Denver, CO
National Provider Identifier
1487176350
Registry record updated Mar 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
Practice address
1355 S Colorado Blvd Ste 100
Denver, CO 80222-3310
Phone
(303) 756-9052
NPI assigned
Jul 12, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 16, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X Primary

Addresses

Primary practice location

1355 S Colorado Blvd Ste 100
Denver, CO 80222-3310

Mailing address

1355 S Colorado Blvd Ste 100
Denver, CO 80222-3310

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
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.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210127001344 CO Practitioner - Clinical Social Worker 0143634493 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Maria Droste Services of Colorado, Inc. Clinical CurrentSince Oct 21, 2020 Accepting new patients
Maria Droste Services of Colorado, Inc. Current Accepting new patients

Locations

1355 S Colorado Blvd
Ste C100
Denver, CO 80222
Phone (303) 756-9052

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1499817600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773619200000",
    "number": "1487176350",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1355 S COLORADO BLVD STE 100",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802223310"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1355 S COLORADO BLVD STE 100",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802223310",
            "telephone_number": "303-756-9052"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TREWARTHA",
        "first_name": "KATHARINE",
        "middle_name": "P",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-07-12",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.