Chelsea R Tieszen, MD, MS

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

MD182564 Issued in OR

Practice address

17727 E Burnside St
Portland, OR 97233-4803

Phone

(503) 215-9800

NPI assigned

Mar 30, 2013

Last updated

Oct 25, 2024By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Master of Science

State licenses

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

  Internal Medicine, WA

  Medicare reassignment NPD
• Providence Health & Services - Oregon

  dba Providence Portland Medical Center

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1003991845

  Internal Medicine

  Medicare reassignment NPD
• Kaiser Foundation Health Plan of the Northwest

  dba Interstate Radiation Oncology

  • Radiation Oncology Clinic/Center
  • Portland, OR
  • NPI 1093043424
  NPD
• Kaiser Foundation Health Plan of the Northwest

  • Clinic/Center
  • Hillsboro, OR
  • NPI 1942718622
  NPD
• Providence Health & Services - Oregon

  dba Providence Portland Medical Center

  • Clinical Pathology Physician
  • Portland, OR
  • NPI 1740732650

  Internal Medicine

  NPD
• Providence Health & Services Oregon

  dba Providence Portland Medical Center

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Portland, OR
  • NPI 1396818993
  NPD

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

{
    "created_epoch": "1364601600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1729814400000",
    "number": "1518200377",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17727 E BURNSIDE ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972334803"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17727 E BURNSIDE ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972334803",
            "telephone_number": "503-215-9800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TIESZEN",
        "first_name": "CHELSEA",
        "middle_name": "R",
        "credential": "MD, MS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-03-30",
        "last_updated": "2024-10-25",
        "certification_date": "2024-10-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD182564",
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "OR",
            "license": "MD182564",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ctieszen618886@oc.providencedirect.org",
            "affiliation": "N",
            "address_1": "17727 E Burnside St",
            "city": "Portland",
            "state": "OR",
            "country_code": "US",
            "postal_code": "972334803",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Julia Tienson, MSW
• Danielle Djoumbi Tientcheu, M.D.
• Carrie Tierney
• Mike Tierney, CADC II
• Rhonda C Tierney, M.D.
• Bao-Chau Tieu
• Brandon H Tieu, MD
• Thomas Thanh Tieu, DMD
• Tiffany Goldwyn DMD PC
• Tiffany Kettermann, LLC

• Geriatric Medicine (Internal Medicine) Physician in Portland, OR
• Providers in Portland, OR by specialty
• Geriatric Medicine (Internal Medicine) Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 25, 2024; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.