Brian Timothy Larsen, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD165374 Issued in OR

Practice address

620 NW 11TH St Ste M103
Hermiston, OR 97838-6941

Phone

(541) 567-5305

Fax

(541) 303-8767

NPI assigned

Apr 13, 2010

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

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

Merit-based Incentive Payment System (MIPS)

Final score

77.82 of 100Reported as group

Quality

64.68

Promoting interoperability

100

Improvement activities

40

Cost

47.05

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 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
• Good Shepherd Health Care System

  • Home Health Agency
  • Hermiston, OR
  • NPI 1902849375
  NPD (past)

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

{
    "created_epoch": "1271116800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1366768533",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "620 NW 11TH ST STE M103",
            "city": "HERMISTON",
            "state": "OR",
            "postal_code": "978386941",
            "telephone_number": "541-667-3797",
            "fax_number": "541-303-8767"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "620 NW 11TH ST STE M103",
            "city": "HERMISTON",
            "state": "OR",
            "postal_code": "978386941",
            "telephone_number": "541-567-5305",
            "fax_number": "541-303-8767"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSEN",
        "first_name": "BRIAN",
        "middle_name": "TIMOTHY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-04-13",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD165374",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marissa Elizabeth Lachaga, PA-S
• Kelly Lafferty, MA, CMHC
• Marcia Ann Lambert, L.D.O.
• Lamj LLC
• Crystal Dyann Lara, CIT
• Shalyn Christine Larsen, MSN, APRN,FNP-C
• Jerusha Latteri, ARNP
• Kaylee Shae Ledbetter, QMHA
• Leslie S. Feinberg, DC, PC
• Jan A Levy

• Internal Medicine Physician in Hermiston, OR
• Providers in Hermiston, OR by specialty
• Internal Medicine 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.