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

Eleni Efstathiou, MD

Individual provider Medical Oncology Physician · NPI 1447654470

Eleni Efstathiou, MD is a Medical Oncology in Portland, Oregon. Qualified in 1995, 31 years ago. Practices with Tmh Physician Associates PLLC, a 1,899-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Oregon and Texas.

Years since qualifying
31
Licensed in
OR, TX
In the registry since
2014
Specialties on file
2
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

3303 S Bond Ave
Portland, OR 97239-4501
Phone: (503) 494-6594
Fax: (503) 494-5385
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1515 Holcombe Blvd, Houston, TX 77030 — (713) 792-6161

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence MF229340 (OR)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 44660 (TX)

Record details

NPI number1447654470
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 20, 2014
Last updated in NPPESFebruary 11, 2026
Certification dateFebruary 11, 2026
Mailing address1400 Sw 5th Ave Ste 500, Portland, OR 97201-5537

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Tmh Physician Associates Pllc — 1899 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations10 on file with Medicare

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