Derrick Brett Kretschmer

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

70144094 Issued in WA

Practice address

3502 S Mason Ave Apt 7E
Tacoma, WA 98409-8535

Phone

(661) 220-4947

NPI assigned

Feb 7, 2013

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

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.

• Xdhealth LLC

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Tacoma, WA
  • NPI 1679390405
  NPD Authorized official

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

{
    "created_epoch": "1360195200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787616000000",
    "number": "1316286545",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2367 TACOMA AVE S # 102",
            "city": "TACOMA",
            "state": "WA",
            "postal_code": "984021409",
            "telephone_number": "253-398-4765"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3502 S MASON AVE APT 7E",
            "city": "TACOMA",
            "state": "WA",
            "postal_code": "984098535",
            "telephone_number": "661-220-4947"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2367 Tacoma Ave S # 102",
            "address_purpose": "LOCATION",
            "city": "Tacoma",
            "state": "WA",
            "postal_code": "984021409",
            "country_code": "US",
            "telephone_number": "253-398-4765",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KRETSCHMER",
        "first_name": "DERRICK",
        "middle_name": "BRETT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-02-07",
        "last_updated": "2026-08-25",
        "certification_date": "2026-08-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "WA",
            "license": "70144094",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ronald Matthew Kreinbrink, MD
• Peter Kreishman, M.D.
• Karen Kremkau
• Samantha Lyn Krempasky, CRNA
• Alexander Kress, LPC
• William Kretzer, DO
• George H Krick, MD
• Traci Krieg
• Michael Thomas Kriesel, DO
• Samakshi Krishna, M.D.

• Clinical Social Worker in Tacoma, WA
• Providers in Tacoma, WA by specialty
• Clinical Social Worker in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 25, 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.