NPIMap

Individual provider Active NPI

Christopher Chang, M.D.

  • Critical Care Medicine (Internal Medicine) Physician
  • Portland, OR
National Provider Identifier
1174941298
Registry record updated Sep 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X
License
MD188733 Issued in OR
Practice address
3710 SW US Veterans Hospital Rd
Portland, OR 97239-2964
Phone
(503) 220-8262
NPI assigned
Apr 4, 2014
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 12, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pulmonary Disease Physician 207RP1001X MD188733 OR
Critical Care Medicine (Internal Medicine) Physician 207RC0200X MD188733 OR Primary

Addresses

Primary practice location

3710 SW US Veterans Hospital Rd
Portland, OR 97239-2964

Mailing address

3710 SW US Veterans Hospital Rd
Portland, OR 97239-2964

Other practice location 1

3600 NW Samaritan Dr
Corvallis, OR 97330-5472
Phone (541) 768-5111

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address cchang306475@samhealth.direct-ci.com

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241124000089 OR Practitioner - Internal Medicine 3375812670 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Good Samaritan Hospital CorvallisGroup PAC ID 1557270725, 372 clinicians

Practice addresses (Care Compare)

3600 NW Samaritan Dr
Corvallis, OR 97330-3737

Hospital & facility affiliations

  • Good Samaritan Regional Medical Center Hospital, Corvallis, OR, CCN 380014

Merit-based Incentive Payment System (MIPS)

Final score
91.14 of 100Reported as group
Quality
85.78
Promoting interoperability
100
Improvement activities
40
Cost
78.31

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A137820CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Good Samaritan Hospital Corvallis Multi-Specialty Current Accepting new patients
Good Samaritan Hospital Corvallis Multi-Specialty CurrentSince Nov 18, 2024 Accepting new patients
Good Samaritan Hospital Corvallis Multi-Specialty CurrentSince Nov 18, 2024 Accepting new patients

Locations

3600 NW Samaritan Dr
Ste 227
Corvallis, OR 97330
Phone (541) 768-1261

3600 NW Samaritan Dr
Corvallis, OR 97330
Phone (541) 768-4906

815 NW 9th St
Ste 215
Corvallis, OR 97330
Phone (541) 768-1888

Interoperability endpoints

  • Direct secure messaging: cchang306475@samhealth.direct-ci.com

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.

Hospital & facility affiliations 21

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 21

NPI Registry JSON

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

{
    "created_epoch": "1396569600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789171200000",
    "number": "1174941298",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3710 SW US VETERANS HOSPITAL RD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972392964"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3710 SW US VETERANS HOSPITAL RD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972392964",
            "telephone_number": "503-220-8262"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3600 NW Samaritan Dr",
            "address_purpose": "LOCATION",
            "city": "Corvallis",
            "state": "OR",
            "postal_code": "973305472",
            "country_code": "US",
            "telephone_number": "541-768-5111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHANG",
        "first_name": "CHRISTOPHER",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-04-04",
        "last_updated": "2026-09-12",
        "certification_date": "2026-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "OR",
            "license": "MD188733",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "OR",
            "license": "MD188733",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cchang306475@samhealth.direct-ci.com",
            "affiliation": "N",
            "address_1": "3600 NW Samaritan Dr",
            "city": "Corvallis",
            "state": "OR",
            "country_code": "US",
            "postal_code": "973305472",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

Verify at the official NPI Registry.