Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Nikolaos Myriounis, MD

Individual provider Internal Medicine Physician · NPI 1821235474

Nikolaos Myriounis, MD practises Hematology/Oncology in Kennewick, Washington. Qualified in 2004, 22 years ago. Practices with Rcch Trios Health LLC, a 66-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Florida, Georgia and Washington.

Years since qualifying
22
Licensed in
FL, GA, WA
In the registry since
2009
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3730 Plaza Way
Kennewick, WA 99338-2718
Phone: (509) 221-2449
Fax: (509) 221-2433
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 308 Deep South Farm Rd Ste 200, Blairsville, GA 30512-2218 — (770) 496-9430
  • 624 W Martin Luther King Jr Dr, Milledgeville, GA 31061-2787 — (770) 496-9430
  • 10452 Silverdale Way Nw, Silverdale, WA 98383-9411 — (360) 307-7300

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence MD61530077 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME145610 (FL)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence ME145610 (FL)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 87124 (GA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence ME145610 (FL)

Record details

NPI number1821235474
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 17, 2009
Last updated in NPPESJune 24, 2025
Certification dateJune 18, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Rcch Trios Health Llc — 66 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients47
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $154 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Rcch Trios Health LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 66 clinicians in the practice; 12 are shown here.

Other providers in Kennewick