NPIMap

Individual provider Active NPI

Clayton M Smiley, MD

  • Nephrology Physician
  • Portland, OR
National Provider Identifier
1679544431
Registry record updated Sep 25, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
MD27251 Issued in OR
Practice address
1130 NW 22ND Avenue, Ste 640
Portland, OR 97210-2900
Phone
(503) 229-7976
Fax
(503) 274-4867
NPI assigned
Jan 30, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 25, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X MD00048170 WA
Nephrology Physician 207RN0300X MD27251 OR Primary

Addresses

Primary practice location

1130 NW 22ND Avenue, Ste 640
Portland, OR 97210-2900

Mailing address

PO Box 3068
Portland, OR 97208-3068
Phone (503) 229-7976

Other practice location 1

8050 SW Warm Springs Street, Ste 150
Tualatin, OR 97062
Phone (503) 692-7971

Other practice location 2

925 Commercial Street SE, Ste 110
Salem, OR 97302
Phone (503) 967-6670

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR, HI2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20070718000372 OR Practitioner - NephrologyPractitioner - Internal Medicine 9830290055 Reassigns benefits to 1 organization
I20200110002238 HI Practitioner - Nephrology 9830290055 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nephrology
Education
Other, 1998
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Northwest Renal Clinic IncGroup PAC ID 8628065836, shared by 3 NPIs, 39 clinicians

Practice addresses (Care Compare)

105 Maui Lani Pkwy
Suite 100
Wailuku, HI 96793-2443
Phone (808) 442-7777

1130 NW 22ND Ave
Suite 640
Portland, OR 97210-2993
Phone (503) 229-7976

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD00048170WAMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Northwest Renal Clinic, Inc. Nephrology CurrentSince Jul 1, 2007 Accepting new patients
Northwest Renal Clinic, Inc. Nephrology Current Accepting new patients
Northwest Renal Clinic, Inc. Nephrology CurrentSince Jul 1, 2007 Accepting new patients
Northwest Renal Clinic, Inc. Nephrology CurrentSince Dec 12, 2019 Accepting new patients
Legacy Emanuel Hospital & Health Center Past Accepting new patients

Locations

105 Maui Lani Pkwy
Ste 100
Wailuku, HI 96793
Phone (808) 244-9555

1130 NW 22nd Ave
Ste 640
Portland, OR 97210
Phone (503) 229-7976

925 Commercial St SE
Ste 110
Salem, OR 97302
Phone (503) 967-6670

8050 SW Warm Springs St
Ste 150
Tualatin, OR 97062
Phone (503) 692-7971

Interoperability endpoints

  • Direct secure messaging: csmiley47735@direct.acumenmd.com

Organizations & group practices 12

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 17

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

View all 17

NPI Registry JSON

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

{
    "created_epoch": "1138579200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758758400000",
    "number": "1679544431",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3068",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972083068",
            "telephone_number": "503-229-7976",
            "fax_number": "503-274-4867"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1130 NW 22ND AVENUE, STE 640",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972102900",
            "telephone_number": "503-229-7976",
            "fax_number": "503-274-4867"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8050 SW Warm Springs Street, Ste 150",
            "address_purpose": "LOCATION",
            "city": "Tualatin",
            "state": "OR",
            "postal_code": "97062",
            "country_code": "US",
            "telephone_number": "503-692-7971",
            "fax_number": "503-691-6837",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "925 Commercial Street SE, Ste 110",
            "address_purpose": "LOCATION",
            "city": "Salem",
            "state": "OR",
            "postal_code": "97302",
            "country_code": "US",
            "telephone_number": "503-967-6670",
            "fax_number": "503-585-2185",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SMILEY",
        "first_name": "CLAYTON",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-30",
        "last_updated": "2025-09-25",
        "certification_date": "2025-09-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "WA",
            "license": "MD00048170",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "OR",
            "license": "MD27251",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

Verify at the official NPI Registry.