Individual provider Active NPI

Sophana Karnchanasorn, MD

  • Hospitalist Physician
  • Portland, OR
National Provider Identifier
1710165303
Registry record updated Jan 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
MD178284 Issued in OR
Practice address
3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone
(503) 494-1164
Fax
(503) 494-5502
NPI assigned
Feb 5, 2008
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 22, 2026

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

Specialties & licenses 7

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD178284 OR
Internal Medicine Physician 207R00000X MD60640385 WA
Internal Medicine Physician 207R00000X 224535 MA
Hospitalist Physician 208M00000X M-2255 GU
Internal Medicine Physician 207R00000X M-2255 GU
Geriatric Medicine (Internal Medicine) Physician 207RG0300X MD178284 OR
Hospitalist Physician 208M00000X MD178284 OR Primary

Addresses

Primary practice location

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011

Mailing address

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone (503) 494-1164

Other practice location 1

1225 NE 2nd Ave
Portland, OR 97232-2003
Phone (503) 944-8000

Other practice location 2

380 9th St
Florence, OR 97439-9470
Phone (541) 997-7134

Other practice location 3

2865 Daggett Ave
Klamath Falls, OR 97601-1106
Phone (541) 274-6110

Other identifiers 1

IdentifierTypeStateIssuer
500606452MedicaidOR

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address skarnchanasorn972726@oc.providencedirect.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR, TX, WA, GU4 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 4

Enrollment IDStateProvider typePAC IDDetails
I20091019000102 OR Practitioner - HospitalistPractitioner - Internal MedicinePractitioner - Geriatric Medicine 6800933276 Reassigns benefits to 9 organizations
I20110419000094 TX Practitioner - Internal Medicine 6800933276 Reassigns benefits to 6 organizations
I20161021001771 WA Practitioner - Internal Medicine 6800933276 Reassigns benefits to 1 organization
I20210514002091 GU Practitioner - Internal Medicine 6800933276 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
Other, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
South Sound Inpatient Physicians PLLCGroup PAC ID 5991618738, 424 clinicians
Tuality Medical Group LLCGroup PAC ID 7416173414, 289 clinicians

Practice addresses (Care Compare)

1460 G St
Springfield, OR 97477-4112
Phone (541) 726-4400

2520 Cherry Ave
Bremerton, WA 98310-4229
Phone (360) 377-3911

335 SE 8TH Ave
Hillsboro, OR 97123-4246
Phone (503) 681-1111

407 14TH Ave SE
Puyallup, WA 98372-3770
Phone (253) 697-4000

Hospital & facility affiliations

  • St Michael Medical Center Hospital, Silverdale, WA, CCN 500039
  • McKenzie-Willamette Medical Center Hospital, Springfield, OR, CCN 380020

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
134081CAMDClinical Social Worker
M-2255GUMDInternal Medicine Physician
224535MAMDInternal Medicine Physician
MD178284ORMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Providence Health & Services - Oregon Internal Medicine CurrentSince Dec 1, 2018 Accepting new patients
Hospitalist Medicine Physicians of Texas, PLLC Internal Medicine CurrentSince Dec 17, 2017 Accepting new patients
South Sound Inpatient Physicians, PLLC Internal Medicine CurrentSince Sep 1, 2018 Accepting new patients
HCC of Laredo LLC Internal Medicine CurrentSince Dec 26, 2019 Accepting new patients
Tuality Healthcare CurrentSince Nov 13, 2017 Accepting new patients
Providence Health & Services - Oregon Current Accepting new patients
Providence Health & Services - Oregon Internal Medicine CurrentSince Dec 1, 2018 Accepting new patients
Lonestar Hospital Medicine Associates, PA Internal Medicine CurrentSince Aug 1, 2018 Accepting new patients
Providence Health & Services - Oregon Internal Medicine CurrentSince Sep 1, 2022 Accepting new patients
Gulf Coast Physician Services, PLLC Internal Medicine CurrentSince Mar 1, 2024 Accepting new patients
Tuality Healthcare CurrentSince Nov 13, 2017 Accepting new patients
Providence Health & Services - Oregon Internal Medicine Current Accepting new patients
Cogent Healthcare of Texas, PA Internal Medicine CurrentSince Feb 1, 2019 Accepting new patients
Providence Health & Services - Oregon Internal Medicine Current Accepting new patients
Sky Lakes Medical Center Inc CurrentSince Feb 9, 2023 Accepting new patients
South Sound Inpatient Physicians PLLC Internal Medicine Current Accepting new patients
Ipc Healthcare Services of Texas, PLLC Internal Medicine CurrentSince Oct 1, 2018 Accepting new patients
Legacy Clinics LLC Internal Medicine CurrentSince Dec 23, 2025 Accepting new patients
Guam Healthcare Development Incorporated CurrentSince Feb 4, 2021 Accepting new patients
Legacy Clinics LLC CurrentSince Dec 23, 2025 Accepting new patients
Providence Health & Services Oregon CurrentSince Dec 1, 2018 Accepting new patients
Sky Lakes Medical Center Inc CurrentSince Feb 9, 2023 Accepting new patients
Texas Em-I Medical Services, PA Internal Medicine Past Accepting new patients
Commonspirit Washington Community Care Past Accepting new patients
Angelina Physician Services PA Hospitalist Past Accepting new patients

Locations (25 of 34)

2800 L St
Ste 500
Sacramento, CA 95816
Phone (916) 454-6850

133 Route 3
Dededo, GU 96929
Phone (671) 645-5500

15700 SW Greystone Ct
Beaverton, OR 97006
Phone (503) 203-1000

335 SE 8th Ave
Hillsboro, OR 97123
Phone (503) 681-1111

2865 Daggett Ave
Klamath Falls, OR 97601
Phone (541) 833-6221

1111 Crater Lake Ave
Medford, OR 97504
Phone (541) 732-5250

9205 SW Barnes Rd
Fl 1
Portland, OR 97225
Phone (503) 216-0790

9205 SW Barnes Rd
Portland, OR 97225
Phone (503) 216-1234

1225 NE 2nd Ave
Portland, OR 97232
Phone (503) 413-5051

1130 NW 22nd Ave
Ste 220
Portland, OR 97210
Phone (503) 413-4134

4805 NE Glisan St
Ste BG5
Portland, OR 97213
Phone (503) 215-2392

4805 NE Glisan St
Portland, OR 97213
Phone (503) 215-1111

5410 Maryland Way
Ste 300
Brentwood, TN 37027
Phone (615) 377-1674

1501 S Coulter St
Amarillo, TX 79106
Phone (800) 354-1150

1007 S William St
Atlanta, TX 75551
Phone (903) 614-2000

12221 N Mopac Expy
Austin, TX 78758
Phone (512) 901-2530

901 W Ben White Blvd
Austin, TX 78704
Phone (512) 342-2382

1500 E Houston St
Beeville, TX 78102
Phone (361) 354-2000

5950 Saratoga Blvd
Corpus Christi, TX 78414
Phone (321) 917-9263

600 Elizabeth St
Corpus Christi, TX 78404
Phone (361) 325-2511

2000 Scenic Dr
Georgetown, TX 78626
Phone (512) 863-2117

18951 N Memorial Dr
Humble, TX 77338
Phone (281) 319-8409

1311 Gen Cvazos Blvd
Kingsville, TX 78363
Phone (361) 595-1661

1700 E Saunders St
Laredo, TX 78041
Phone (956) 206-6971

1201 W Frank Ave
Lufkin, TX 75904
Phone (936) 634-8111

Interoperability endpoints

  • Direct secure messaging: skarnchanasorn474294@fhsce.catholichealth.net
  • Direct secure messaging: skarncha@yourcarecommunity.org
  • Direct secure messaging: skarnchanasorn110609@direct.ohsu.edu

Organizations & group practices 28

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.

View all 28

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1202169600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769040000000",
    "number": "1710165303",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3181 SW SAM JACKSON PARK RD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972393011",
            "telephone_number": "503-494-1164",
            "fax_number": "503-494-5502"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3181 SW SAM JACKSON PARK RD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972393011",
            "telephone_number": "503-494-1164",
            "fax_number": "503-494-5502"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1225 NE 2nd Ave",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972322003",
            "country_code": "US",
            "telephone_number": "503-944-8000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "380 9th St",
            "address_purpose": "LOCATION",
            "city": "Florence",
            "state": "OR",
            "postal_code": "974399470",
            "country_code": "US",
            "telephone_number": "541-997-7134",
            "fax_number": "541-997-9650",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2865 Daggett Ave",
            "address_purpose": "LOCATION",
            "city": "Klamath Falls",
            "state": "OR",
            "postal_code": "976011106",
            "country_code": "US",
            "telephone_number": "541-274-6110",
            "fax_number": "541-274-6106",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KARNCHANASORN",
        "first_name": "SOPHANA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-02-05",
        "last_updated": "2026-01-22",
        "certification_date": "2026-01-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD178284",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD60640385",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "224535",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "GU",
            "license": "M-2255",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "GU",
            "license": "M-2255",
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "OR",
            "license": "MD178284",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "OR",
            "license": "MD178284",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "500606452",
            "state": "OR"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "skarnchanasorn972726@oc.providencedirect.org",
            "affiliation": "N",
            "address_1": "4805 NE Glisan St",
            "city": "Portland",
            "state": "OR",
            "country_code": "US",
            "postal_code": "972132933",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

Verify at the official NPI Registry.