Tamara Shannan Simpson, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

MD21283 Issued in OR

Practice address

1122 W Elm Ave
Hermiston, OR 97838-6933

Phone

(541) 289-7075

Fax

(541) 314-4873

NPI assigned

Mar 28, 2007

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

Medicare fee-for-service enrollment

Enrolled in OR

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 1

Specialty

Orthopedic Surgery

Education

Oregon Health Sciences University School of Medicine, 2002

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Good Shepherd Health Care SystemGroup PAC ID 9133033764, shared by 5 NPIs, 125 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Good Shepherd Medical Center Hospital, Hermiston, OR, CCN 381325

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tsimpson97589@direct.lhs.org

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.

• Good Shepherd Health Care System

  • Critical Access Hospital
  • Hermiston, OR
  • NPI 1295789667
  Medicare reassignment NPD
• Good Shepherd Health Care System

  • Pediatrics Physician
  • Hermiston, OR
  • NPI 1336198159
  NPD

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

• Good Shepherd Health Care System

  • Critical Access Hospital
  • Hermiston, OR
  • NPI 1295789667
  Care Compare affiliation

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

{
    "created_epoch": "1175040000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1003935388",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1122 W ELM AVE",
            "city": "HERMISTON",
            "state": "OR",
            "postal_code": "978386933",
            "telephone_number": "541-289-7075",
            "fax_number": "541-314-4873"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1122 W ELM AVE",
            "city": "HERMISTON",
            "state": "OR",
            "postal_code": "978386933",
            "telephone_number": "541-289-7075",
            "fax_number": "541-314-4873"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIMPSON",
        "first_name": "TAMARA",
        "middle_name": "SHANNAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-03-28",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "OR",
            "license": "MD21283",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "OR",
            "license": "MD21283",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David B Shanley, MD
• Joseph Rozenboom Sharon, DDS
• Jodee Sharp, DOULA
• Meghan Sharp, PT, DPT
• Lane Marty Shockman, PTA
• Mantinderpreet Singh, MBBS
• Kenneth G. Sjoren, D.D.S.
• Adam T Smith, DO
• Maja Smith
• Stephen David Smith, OTR/L

• Orthopaedic Surgery Physician in Hermiston, OR
• Providers in Hermiston, OR by specialty
• Orthopaedic Surgery Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 2026; 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.