Nikolaos Myriounis, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

MD61530077 Issued in WA

Practice address

3730 Plaza Way
Kennewick, WA 99338-2718

Phone

(509) 221-2449

Fax

(509) 221-2433

NPI assigned

Jan 17, 2009

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 5

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in OH, GA, FL, WA4 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 4

Specialty

Hematology/Oncology

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

RCCH Trios Health LLCGroup PAC ID 5799035416, 65 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trios Health Hospital, Kennewick, WA, CCN 500053
• Kadlec Regional Medical Center Hospital, Richland, WA, CCN 500058
• Lourdes Medical Center Hospital, Pasco, WA, CCN 501337

Merit-based Incentive Payment System (MIPS)

Final score

71.19 of 100Reported as group

Quality

69.24

Improvement activities

40

Cost

51.37

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nikolaos.myriounis.1@18485.direct.athenahealth.com

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.

• RCCH Trios Health LLC

  • Internal Medicine Physician
  • Kennewick, WA
  • NPI 1831682806
  Medicare reassignment Care Compare group NPD
• Kaiser Foundation Health Plan of Washington

  • Multi-Specialty Clinic/Center
  • Seattle, WA
  • NPI 1396810701
  Medicare reassignment NPD
• Florida Cancer Specialists & Research Institute, LLC

  • Medical Oncology Physician
  • Cape Coral, FL
  • NPI 1760590962

  Hematology

  Medicare reassignment NPD
• NSH Cancer Institute Professional Services G, LLC

  • Hematology & Oncology Physician
  • Sandy Springs, GA
  • NPI 1144571381
  Medicare reassignment NPD
• The Metrohealth System

  • Multi-Specialty Clinic/Center
  • Cleveland, OH
  • NPI 1053353896

  Internal Medicine

  Medicare reassignment NPD
• Kaiser Foundation Health Plan of Washington

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1386935351
  NPD
• NSH Cancer Institute Professional Services G LLC

  • Durable Medical Equipment & Medical Supplies
  • Blue Ridge, GA
  • NPI 1629329792
  NPD
• The Metrohealth System

  • Pharmacy
  • Cleveland, OH
  • NPI 1992529911
  NPD
• Kennewick Public Hospital District

  • Multi-Specialty Clinic/Center
  • Kennewick, WA
  • NPI 1235257262
  NPD (past)
• Northside Imaging LLC

  • Diagnostic Radiology Physician
  • Warner Robins, GA
  • NPI 1316394976
  NPD (past)
• NSH Cancer Institute Professional Services G, LLC

  • Hematology & Oncology Physician
  • Atlanta, GA
  • NPI 1124379284
  NPD (past)
• Poplar Bluff Hma Physician Management, LLC

  • Family Medicine Physician
  • Poplar Bluff, MO
  • NPI 1598710147

  Hematology & Oncology

  NPD (past)

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

• Kadlec Regional Medical Center

  • General Acute Care Hospital
  • Richland, WA
  • NPI 1972507580
  Care Compare affiliation
• Lourdes Hospital LLC

  • Critical Access Hospital
  • Pasco, WA
  • NPI 1831284280
  Care Compare affiliation
• RCCH Trios Health LLC

  • General Acute Care Hospital
  • Kennewick, WA
  • NPI 1578058137
  Care Compare affiliation

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

{
    "created_epoch": "1232150400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750723200000",
    "number": "1821235474",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4371 VERONICA S SHOEMAKER BLVD",
            "city": "FORT MYERS",
            "state": "FL",
            "postal_code": "339162216",
            "telephone_number": "239-274-8200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3730 PLAZA WAY",
            "city": "KENNEWICK",
            "state": "WA",
            "postal_code": "993382718",
            "telephone_number": "509-221-2449",
            "fax_number": "509-221-2433"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "624 W Martin Luther King Jr Dr",
            "address_purpose": "LOCATION",
            "city": "Milledgeville",
            "state": "GA",
            "postal_code": "310612787",
            "country_code": "US",
            "telephone_number": "770-496-9430",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "308 Deep South Farm Rd Ste 200",
            "address_purpose": "LOCATION",
            "city": "Blairsville",
            "state": "GA",
            "postal_code": "305122218",
            "country_code": "US",
            "telephone_number": "770-496-9430",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10452 Silverdale Way NW",
            "address_purpose": "LOCATION",
            "city": "Silverdale",
            "state": "WA",
            "postal_code": "983839411",
            "country_code": "US",
            "telephone_number": "360-307-7300",
            "fax_number": "877-777-9902",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MYRIOUNIS",
        "first_name": "NIKOLAOS",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2009-01-17",
        "last_updated": "2025-06-24",
        "certification_date": "2025-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "FL",
            "license": "ME145610",
            "primary": false
        },
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "FL",
            "license": "ME145610",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "GA",
            "license": "87124",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "FL",
            "license": "ME145610",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WA",
            "license": "MD61530077",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwa.kp.org:14430/Interconnect-CE-PRD/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "10452 Silverdale Way NW",
            "city": "Silverdale",
            "state": "WA",
            "country_code": "US",
            "postal_code": "983839411",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Hematology & Oncology Physician in Kennewick, WA
• Providers in Kennewick, WA by specialty
• Hematology & Oncology Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 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.