Individual provider Active NPI

Winston Douglas Chamberlain, MD, PHD

  • Cornea and External Diseases Specialist Physician
  • Portland, OR
National Provider Identifier
1710108162
Registry record updated Apr 9, 2018
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cornea and External Diseases Specialist PhysicianTaxonomy code 207WX0120X
License
MD28180 Issued in OR
Practice address
3375 SW Terwilliger Blvd
Portland, OR 97239-4146
Phone
(503) 494-3000
Fax
(503) 494-4286
NPI assigned
May 2, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 9, 2018

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology Physician 207W00000X MD28180 OR
Ophthalmology Physician 207W00000X A89422 CA
Cornea and External Diseases Specialist Physician 207WX0120X MD28180 OR Primary

Addresses

Primary practice location

3375 SW Terwilliger Blvd
Portland, OR 97239-4146

Mailing address

3375 SW Terwilliger Blvd
Portland, OR 97239-4146
Phone (503) 494-3000

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
I20080708000272 OR Practitioner - Ophthalmology 2264525476 Reassigns benefits to 1 organization
I20100517000469 WA Practitioner - Ophthalmology 2264525476 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Ophthalmology
Education
University of Colorado School of Medicine, Denver, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kaiser Foundation Health Plan of the NorthwestGroup PAC ID 5799688230, 1,805 clinicians

Practice addresses (Care Compare)

10100 SE Sunnyside Rd
Clackamas, OR 97015-8970
Phone (800) 813-2000

10180 SE Sunnyside Rd
Clackamas, OR 97015-8970
Phone (800) 813-2000

12100 SE Stevens CT
Suite 106
Portland, OR 97086-4707
Phone (800) 813-2000

3600 N Interstate Ave
Portland, OR 97227-1106
Phone (800) 813-2000

3620 N Interstate Ave
Portland, OR 97227-1106
Phone (800) 813-2000

Merit-based Incentive Payment System (MIPS)

Final score
99.11 of 100Reported as apm
Quality
84.29
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Cataract surgery14

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A89422CAMDOphthalmology Physician
MD28180ORMDOphthalmology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
South Salem Rehabilitation, LLC Ophthalmology CurrentSince Sep 22, 2025 Accepting new patients
University Professional Services Ophthalmology CurrentSince May 1, 2010 Accepting new patients
Kaiser Foundation Health Plan of the Northwest CurrentSince Sep 22, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Northwest Ophthalmology CurrentSince Sep 22, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Northwest Ophthalmology Current Accepting new patients

Locations

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

500 NE Multnomah St
Fl 11
Portland, OR 97232

3181 SW Sam Jackson Park Rd
Portland, OR 97239
Phone (503) 494-5674

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 8

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": "1178064000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1523232000000",
    "number": "1710108162",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3375 SW TERWILLIGER BLVD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972394146",
            "telephone_number": "503-494-3000",
            "fax_number": "503-494-4286"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3375 SW TERWILLIGER BLVD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972394146",
            "telephone_number": "503-494-3000",
            "fax_number": "503-494-4286"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHAMBERLAIN",
        "first_name": "WINSTON",
        "middle_name": "DOUGLAS",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-02",
        "last_updated": "2018-04-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "OR",
            "license": "MD28180",
            "primary": false
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A89422",
            "primary": false
        },
        {
            "code": "207WX0120X",
            "taxonomy_group": "",
            "desc": "Ophthalmology, Cornea and External Diseases Specialist",
            "state": "OR",
            "license": "MD28180",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

Verify at the official NPI Registry.