NPIMap

Individual provider Active NPI

Hsichao Chow, MD

  • Gastroenterology Physician
  • Corvallis, OR
National Provider Identifier
1356431464
Registry record updated Jan 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
MD27289 Issued in OR
Practice address
3521 NW Samaritan Dr Ste 101
Corvallis, OR 97330-4744
Phone
(541) 768-6119
NPI assigned
Oct 13, 2006
Last updated
Jan 22, 2026By the provider in NPPES
Sex
Male
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 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X MD27289 OR Primary

Addresses

Primary practice location

3521 NW Samaritan Dr Ste 101
Corvallis, OR 97330-4744

Mailing address

PO Box 1189
Corvallis, OR 97339-1189

Other practice location 1

10000 SE Main St 112
Gastroenterology Assoc
Portland, OR 97216-2441
Phone (503) 255-3054

Other identifiers 1

IdentifierTypeStateIssuer
276110MedicaidOR

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address hchow7719@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
I20070611000323 OR Practitioner - Gastroenterology 5193823482 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
University of California, Davis School of Medicine, 1981
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

3615 NW Samaritan Dr
Corvallis, OR 97330-3771

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Upper gastrointestinal (GI) endoscopy for acid reflux1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Good Samaritan Hospital Corvallis CurrentSince Jan 23, 2026 Accepting new patients
Corvallis Gastroenterology PC CurrentSince Jan 1, 2019 Accepting new patients
Albany General Hospital CurrentSince Jan 23, 2026 Accepting new patients
McKenzie Physician Services LLC CurrentSince Jul 21, 2020 Accepting new patients
Albany General Hospital CurrentSince Jan 23, 2026 Accepting new patients
Good Samaritan Hospital Corvallis CurrentSince Jan 23, 2026 Accepting new patients
Tivakaran and Chow Gastroenterology Gastroenterology PastSince Jun 30, 2007 Accepting new patients

Locations

1046 6th Ave SW
Albany, OR 97321
Phone (541) 812-4000

705 Elm St SW
Ste 200
Albany, OR 97321
Phone (541) 812-4850

1750 Thompson Rd
Coos Bay, OR 97420
Phone (541) 269-0333

3521 NW Samaritan Dr
Ste 101
Corvallis, OR 97330
Phone (541) 768-6119

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

10000 SE Main St
Ste 112
Portland, OR 97216
Phone (503) 255-3054

10123 SE Market St
Portland, OR 97216
Phone (503) 251-6355

960 N 16th St
Ste 200
Springfield, OR 97477
Phone (541) 228-3330

Interoperability endpoints

  • Direct secure messaging: hchow@yourcarecommunity.org

Organizations & group practices 9

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 53

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

View all 53

NPI Registry JSON

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

{
    "created_epoch": "1160697600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769040000000",
    "number": "1356431464",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1189",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973391189"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3521 NW SAMARITAN DR STE 101",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973304744",
            "telephone_number": "541-768-6119"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10000 SE MAIN ST 112",
            "address_2": "GASTROENTEROLOGY ASSOC",
            "address_purpose": "LOCATION",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972162441",
            "country_code": "US",
            "telephone_number": "503-255-3054",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHOW",
        "first_name": "HSICHAO",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-13",
        "last_updated": "2026-01-22",
        "certification_date": "2026-01-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "OR",
            "license": "MD27289",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "276110",
            "state": "OR"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hchow7719@samhealth.direct-ci.com",
            "affiliation": "N",
            "address_1": "3521 NW Samaritan Dr Ste 101",
            "city": "Corvallis",
            "state": "OR",
            "country_code": "US",
            "postal_code": "973304744",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Corvallis, OR

Sources for this page

Verify at the official NPI Registry.