Individual provider Active NPI

Kathy Yeachyng Chang, MD, MPH

  • Occupational Medicine Physician
  • Portland, OR
National Provider Identifier
1043357742
Registry record updated Feb 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational Medicine PhysicianTaxonomy code 2083X0100X
License
MD26244 Issued in OR
Practice address
1620 NE 122ND Ave
Portland, OR 97230
Phone
(800) 813-2000
NPI assigned
Jan 31, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 25, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Preventive Medicine/Occupational Environmental Medicine Physician 2083P0500X MD26244 OR
Occupational Medicine Physician 2083X0100X MD26244 OR Primary
Occupational Medicine Physician 2083X0100X MD60201740 WA

Addresses

Primary practice location

1620 NE 122ND Ave
Portland, OR 97230

Mailing address

500 NE Multnomah St Ste 100
Portland, OR 97232-2031

Other practice location 1

3449 N Anchor St
Suite 500
Portland, OR 97217-7679
Phone (503) 285-6627

Other practice location 2

17700 SE Mill Plain Blvd Ste 190
Vancouver, WA 98683-7582
Phone (800) 813-2000

Electronic endpoints 1

TypeEndpointUseAffiliation
SOAP URL https://careepicwest.kp.org:14430/interconnect-prodnwm/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq Health Information Exchange (HIE) Northwest Permanente PC

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR, WA2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230519002528 OR Practitioner - Other (Physician) 6204829757 Reassigns benefits to 1 organization
I20230605001565 WA Practitioner - Preventive Medicine 6204829757 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD26244ORMDPreventive Medicine/Occupational Environmental Medicine Physician
MD60201740WAMDOccupational Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Kaiser Foundation Health Plan of the Northwest CurrentSince Feb 7, 2023 Accepting new patients
Kaiser Foundation Health Plan of the Northwest CurrentSince Feb 7, 2023 Accepting new patients
Kaiser Foundation Health Plan of the Northwest CurrentSince Feb 7, 2023 Accepting new patients

Locations

10100 SE Sunnyside Rd
Clackamas, OR 97015
Phone (503) 571-2946

500 NE Multnomah St
Ste 100
Portland, OR 97232
Phone (503) 499-5200

7201 N Interstate Ave
Portland, OR 97217
Phone (503) 240-4051

1700 NE 102nd Ave
Portland, OR 97220
Phone (866) 279-4581

2400 Lancaster Dr NE
Salem, OR 97305
Phone (503) 361-5400

1230 7th Ave
Longview, WA 98632
Phone (360) 575-4801

7101 NE 137th Ave
Vancouver, WA 98682
Phone (360) 418-6000

Organizations & group practices 3

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": "1170201600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771977600000",
    "number": "1043357742",
    "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"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1620 NE 122ND AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "97230",
            "telephone_number": "800-813-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3449 N Anchor St",
            "address_2": "Suite 500",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972177679",
            "country_code": "US",
            "telephone_number": "503-285-6627",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "17700 SE Mill Plain Blvd Ste 190",
            "address_purpose": "LOCATION",
            "city": "Vancouver",
            "state": "WA",
            "postal_code": "986837582",
            "country_code": "US",
            "telephone_number": "800-813-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHANG",
        "first_name": "KATHY",
        "middle_name": "YEACHYNG",
        "name_prefix": "Dr.",
        "credential": "MD, MPH",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-31",
        "last_updated": "2026-02-25",
        "certification_date": "2026-02-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2083P0500X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Preventive Medicine/Occupational Environmental Medicine",
            "state": "OR",
            "license": "MD26244",
            "primary": false
        },
        {
            "code": "2083X0100X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Occupational Medicine",
            "state": "OR",
            "license": "MD26244",
            "primary": true
        },
        {
            "code": "2083X0100X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Occupational Medicine",
            "state": "WA",
            "license": "MD60201740",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/interconnect-prodnwm/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "Y",
            "endpointDescription": "Carequality",
            "affiliationName": "Northwest Permanente PC",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "1620 NE 122nd Ave",
            "city": "Portland",
            "state": "OR",
            "country_code": "US",
            "postal_code": "97230",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

Verify at the official NPI Registry.