Chet W Hammill, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

MD215325 Issued in OR

Practice address

4805 NE Glisan St Ste 6N60
Portland, OR 97213-2933

Phone

(503) 281-0561

Fax

(503) 416-7377

NPI assigned

Jun 15, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 3

Electronic endpoints 2

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

General Surgery

Education

University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

The Oregon Clinic, PCGroup PAC ID 2860390408, 353 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032
• Providence Portland Medical Center Hospital, Portland, OR, CCN 380061

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/ac6e817f-dc27-43e8-b886-6559f137e853/

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.

• The Oregon Clinic PC

  • Specialist
  • Portland, OR
  • NPI 1265417174
  Medicare reassignment Care Compare group
• Providence Health & Services - Oregon

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1003991845
  Medicare reassignment NPD
• Providence Health & Services Oregon

  • General Practice Physician
  • Lake Oswego, OR
  • NPI 1023488343
  Medicare reassignment NPD
• Public Hospital District No 2, Klickitat County Washington

  • Critical Access Hospital
  • White Salmon, WA
  • NPI 1952483653
  Medicare reassignment NPD
• Public Hospital District No. 2, Klickitat County, Washington

  • Critical Access Hospital
  • White Salmon, WA
  • NPI 1760455687
  Medicare reassignment NPD
• Providence Health & Service - Oregon

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Portland, OR
  • NPI 1457625501
  NPD
• Providence Health & Services - Oregon

  • Clinical Pathology Physician
  • Portland, OR
  • NPI 1740732650
  NPD
• Providence Health & Services Oregon

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Portland, OR
  • NPI 1396818993
  NPD
• Public Hospital District No 2, Klickitat County, Washington

  • Rural Health Clinic/Center
  • White Salmon, WA
  • NPI 1467961250
  NPD
• Providence Health & Services - Oregon

  • Internal Medicine Physician
  • Sherwood, OR
  • NPI 1184729329
  NPD (past)
• Gibson Community Hospital Association

  • Critical Access Hospital
  • Gibson City, IL
  • NPI 1114935681
  NPD (past)

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

• Providence Health & Services - Oregon

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1003991845
  Care Compare affiliation
• Providence Health & Services - Oregon

  • Case Manager/Care Coordinator
  • Portland, OR
  • NPI 1891822995

  Hospital

  Care Compare affiliation
• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827
  Care Compare affiliation

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

{
    "created_epoch": "1181865600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1720283310",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "541 NE 20TH AVE STE 225",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972322895",
            "telephone_number": "503-963-2801",
            "fax_number": "503-963-2825"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4805 NE GLISAN ST STE 6N60",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972132933",
            "telephone_number": "503-281-0561",
            "fax_number": "503-416-7377"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5050 NE Hoyt St Ste 610",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972132985",
            "country_code": "US",
            "telephone_number": "503-467-4761",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAMMILL",
        "first_name": "CHET",
        "middle_name": "W",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-06-15",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MO",
            "license": "2017006874",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "OR",
            "license": "MD215325",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "500607946",
            "state": "OR"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200040877",
            "state": "MO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2003573",
            "state": "WA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "4921 Parkview Pl",
            "address_2": "Div Surg HPB, Ste 12C",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101032",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cc_otoc_cas_front_desk_pool12223192@or.providencedirect.org",
            "affiliation": "Y",
            "affiliationName": "The Oregon Clinic PC",
            "address_1": "4805 NE Glisan St Ste 6N60",
            "city": "Portland",
            "state": "OR",
            "country_code": "US",
            "postal_code": "972132933",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Sandy Hammer, PHARMD
• Sarah Hammer
• John Philip Hammerstad, MD
• Lanette Lee Hammett, ANP
• Tina Hammick
• Brooke Rebecca Hammond, LCSW, ATR
• Ellery Hammond, BEHAVIOR ANALYST
• James Hammond, MD
• Marian Josephine Hammond
• Mariel Hammond, DPT

• Surgery Physician in Portland, OR
• Providers in Portland, OR by specialty
• Surgery Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 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.