Ruben Joseph Marchosky, DO

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

OP61680475 Issued in WA

Practice address

1615 Delaware St
Longview, WA 98632-2367

Phone

(360) 514-2000

NPI assigned

Apr 27, 2022

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 WA

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

Emergency Medicine

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cep America LLCGroup PAC ID 6608056171, 995 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Peacehealth St John Medical Center Hospital, Longview, WA, CCN 500041

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rmarchosky760347@direct.peacehealth.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.

• Cep America LLC

  • Emergency Medicine Physician
  • Edmonds, WA
  • NPI 1447484274
  Medicare reassignment Care Compare group NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Fort Lauderdale, FL
  • NPI 1700747946
  NPD

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

• Peacehealth

  • General Acute Care Hospital
  • Longview, WA
  • NPI 1073510277
  Care Compare affiliation

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

{
    "created_epoch": "1651017600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756425600000",
    "number": "1083358824",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1601 CUMMINS DR STE D",
            "city": "MODESTO",
            "state": "CA",
            "postal_code": "953586411"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1615 DELAWARE ST",
            "city": "LONGVIEW",
            "state": "WA",
            "postal_code": "986322367",
            "telephone_number": "360-514-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARCHOSKY",
        "first_name": "RUBEN",
        "middle_name": "JOSEPH",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-27",
        "last_updated": "2025-08-29",
        "certification_date": "2025-08-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WA",
            "license": "OP61680475",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer L Malone-Dieter, AAC
• Aimee Gwyn Mamich, PMHNP-BC, MSN, RN
• Ramnish Jagdish Mandrelle, MBBS, MD
• Herbert Mao, DO
• Steven G Marandas, DMD
• Marci Taylor-Knee, Pmhnp PLLC
• Leah Margolis, MD
• Nikkea N Marin
• Holly Marith, BS, R-AAC
• Mark D Teigen DDS PS

• Emergency Medicine Physician in Longview, WA
• Providers in Longview, WA by specialty
• Emergency Medicine Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 29, 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.