Active NPI
Kathy Yeachyng Chang, MD, MPH
- Occupational Medicine Physician
- Portland, OR
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Occupational Medicine Physician
- License
- MD26244
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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, WA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD26244 | OR | MD | Preventive Medicine/Occupational Environmental Medicine Physician |
| MD60201740 | WA | MD | Occupational Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Kaiser Foundation Health Plan of the Northwest | Current | Accepting new patients | |
| Kaiser Foundation Health Plan of the Northwest | Current | Accepting new patients | |
| Kaiser Foundation Health Plan of the Northwest | Current | 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.
-
- General Practice Physician
- Portland, OR
- NPI 1184786527
WA
-
- General Practice Physician
- Portland, OR
- NPI 1649722034
-
- Clinic/Center
- Hillsboro, OR
- NPI 1942718622
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 25, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.