Individual provider Active NPI

Timothy James Zerwic, OTD

  • Hand Occupational Therapist
  • Portland, OR
National Provider Identifier
1538699376
Registry record updated Aug 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hand Occupational TherapistTaxonomy code 225XH1200X
License
379770 Issued in OR
Practice address
3550 N Interstate Ave
Portland, OR 97227-1196
Phone
(800) 813-2000
NPI assigned
Jun 14, 2017
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 11, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Hand Occupational Therapist 225XH1200X 5667 TN
Occupational Therapist 225X00000X 379770 OR
Hand Occupational Therapist 225XH1200X 379770 OR Primary

Addresses

Primary practice location

3550 N Interstate Ave
Portland, OR 97227-1196

Mailing address

500 NE Multnomah St Ste 100
Portland, OR 97232-2031
Phone (800) 813-2000

Other practice location 1

301 Fisher St
Keesler AFB, MS 39534-2508
Phone (228) 376-0446

Medicare participation

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

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Tennessee Orthopaedic Alliance PA PastSince Jun 14, 2017 Accepting new patients

Interoperability endpoints

  • Direct secure messaging: timothy.zerwic.p1@direct.toa.nextgenshare.com
  • Direct secure messaging: timothy.zerwic.p2@direct.toa.nextgenshare.com
  • Direct secure messaging: timothy.zerwic.p3@direct.toa.nextgenshare.com

Organizations & group practices 1

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": "1497398400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786406400000",
    "number": "1538699376",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "500 NE MULTNOMAH ST STE 100",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972322031",
            "telephone_number": "800-813-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3550 N INTERSTATE AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972271196",
            "telephone_number": "800-813-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "301 Fisher St",
            "address_purpose": "LOCATION",
            "city": "Keesler AFB",
            "state": "MS",
            "postal_code": "395342508",
            "country_code": "US",
            "telephone_number": "228-376-0446",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZERWIC",
        "first_name": "TIMOTHY",
        "middle_name": "JAMES",
        "credential": "OTD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-14",
        "last_updated": "2026-08-11",
        "certification_date": "2026-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225XH1200X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist, Hand",
            "state": "TN",
            "license": "5667",
            "primary": false
        },
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "OR",
            "license": "379770",
            "primary": false
        },
        {
            "code": "225XH1200X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist, Hand",
            "state": "OR",
            "license": "379770",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 11, 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.