Andrew Treister, MD

Primary specialty

Neurocritical Care PhysicianTaxonomy code 2084A2900X

License

MD187660 Issued in OR

Practice address

3181 SW Sam Jackson Park Rd
Portland, OR 97239

Phone

(503) 418-1472

Fax

(503) 418-1495

NPI assigned

Mar 31, 2014

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

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

Neurology

Education

University of California, Irvine, California College of Medicine, 2014

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

University Professional ServicesGroup PAC ID 4880760107, 1,683 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ohsu Hospital and Clinics Hospital, Portland, OR, CCN 380009
• Kaiser Sunnyside Medical Center Hospital, Clackamas, OR, CCN 380091
• Adventist Health Portland Hospital, Portland, OR, CCN 380060

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: atreister90409@secure.stcharleshealthcare.org
• Direct secure messaging: atreister107896@direct.ohsu.edu

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.

• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1184786527

  WA

  Medicare reassignment Care Compare group NPD
• University Professional Services

  • General Practice Physician
  • Portland, OR
  • NPI 1376709535
  Medicare reassignment Care Compare group NPD
• St. Charles Health System, Inc.

  dba St. Charles Bend

  • General Acute Care Hospital
  • Bend, OR
  • NPI 1982621447
  Medicare reassignment NPD
• Vibra Physicians LLC

  • Hospitalist Physician
  • Johnstown, CO
  • NPI 1659705424

  OR

  Medicare reassignment NPD
• Tuality Medical Group LLC

  • Internal Medicine Physician
  • Hillsboro, OR
  • NPI 1073929782
  Medicare reassignment
• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1306192455
  NPD
• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1871848457
  NPD
• Kaiser Foundation Health Plan of the Northwest

  • Clinic/Center
  • Hillsboro, OR
  • NPI 1942718622
  NPD
• St. Charles Health System, Inc.

  dba St. Charles Medical Center - Bend

  • Rehabilitation Hospital Unit
  • Bend, OR
  • NPI 1154343150
  NPD
• St. Charles Health System, Inc.

  dba St. Charles - Madras

  • Critical Access Hospital
  • Madras, OR
  • NPI 1356389894
  NPD
• University Professional Services

  dba OHSU Home Infusion Pharmacy

  • Pharmacy
  • Beaverton, OR
  • NPI 1073054714
  NPD
• University Professional Services

  dba Child Development & Rehabilitation Center in Portland

  • Multi-Specialty Clinic/Center
  • Portland, OR
  • NPI 1073767588
  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
• Oregon Health & Science University

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1609824010
  Care Compare affiliation
• Portland Adventist Medical Center

  dba Adventist Health Portland

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1801887658
  Care Compare affiliation

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

{
    "created_epoch": "1396224000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757030400000",
    "number": "1518385293",
    "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": "503-418-1472",
            "fax_number": "503-418-1495"
        },
        {
            "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": "97239",
            "telephone_number": "503-418-1472",
            "fax_number": "503-418-1495"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10180 SE Sunnyside Rd",
            "address_purpose": "LOCATION",
            "city": "Clackamas",
            "state": "OR",
            "postal_code": "970158970",
            "country_code": "US",
            "telephone_number": "800-813-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TREISTER",
        "first_name": "ANDREW",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-03-31",
        "last_updated": "2025-09-05",
        "certification_date": "2025-09-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "OR",
            "license": "MD187660",
            "primary": false
        },
        {
            "code": "2084A2900X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurocritical Care",
            "state": "OR",
            "license": "MD187660",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Andrew Jason Trego, M.D.
• Hannah Tregoning
• Tyler Matthew Treharne, PHARMACIST
• Timothy James Treible, MD
• Shelby Treick
• Ricky Washakie Trejo
• Andrew Trelstad, LMFT INTERN
• Christopher James Tremain, MS, CCC-SLP
• Janelle Marie Trempe, PT
• April Trenaman, OTR/L

• Neurocritical Care Physician in Portland, OR
• Providers in Portland, OR by specialty
• Neurocritical Care Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 5, 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.