Averill Guo, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

MD225737 Issued in OR

Practice address

9900 SE Sunnyside Rd
Clackamas, OR 97015-9777

Phone

(503) 571-8240

NPI assigned

Apr 11, 2018

Last updated

Jul 21, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

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

Specialty

GastroenterologyAlso: Internal Medicine

Education

Columbia University College of Physicians and Surgeons, 2018

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)

Hospital & facility affiliations

• Kaiser Sunnyside Medical Center Hospital, Clackamas, OR, CCN 380091
• Kaiser Foundation Hospital Westside Hospital, Hillsboro, OR, CCN 380103

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1184786527
  Medicare reassignment Care Compare group NPD
• Kaiser Foundation Health Plan of the Northwest

  • Clinic/Center
  • Hillsboro, OR
  • NPI 1942718622
  NPD

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

• Kaiser Foundation Hospitals

  dba Kaiser Sunnyside Medical Center

  • General Acute Care Hospital
  • Clackamas, OR
  • NPI 1124182902
  Care Compare affiliation
• Kaiser Foundation Hospitals

  dba Kaiser Foundation Hospital - Westside

  • General Acute Care Hospital
  • Hillsboro, OR
  • NPI 1891048807
  Care Compare affiliation

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

{
    "created_epoch": "1523404800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753056000000",
    "number": "1407353808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9900 SE SUNNYSIDE RD",
            "city": "CLACKAMAS",
            "state": "OR",
            "postal_code": "970159777",
            "telephone_number": "503-571-8240"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9900 SE SUNNYSIDE RD",
            "city": "CLACKAMAS",
            "state": "OR",
            "postal_code": "970159777",
            "telephone_number": "503-571-8240"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUO",
        "first_name": "AVERILL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-11",
        "last_updated": "2025-07-21",
        "certification_date": "2025-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "OR",
            "license": "MD225737",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/interconnectprodnwm/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "9900 SE Sunnyside Rd",
            "city": "Clackamas",
            "state": "OR",
            "country_code": "US",
            "postal_code": "970159777",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Anna Helen Grosz, M.D.
• Jane Gu, MD
• Karen Marie Guenther, NNP
• Lisa Lynn Gulick, ATC, MAT
• Karen Gunson, MD
• Caitlyn Elise Gust
• Martha Guyo
• Bassam George Hadeed, MD
• Romy Lee Hafner, APRN-CNP
• Josiah David Hagen, D.O.

• Gastroenterology Physician in Clackamas, OR
• Providers in Clackamas, OR by specialty
• Gastroenterology Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.