Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Chinenyenwa Onyemaechi, MD

Individual provider Psychiatry Physician · NPI 1396087052

Chinenyenwa Onyemaechi, MD practises Psychiatry in Hillsboro, Oregon. Qualified in 2013, 13 years ago. Practices with Legacy Emanuel Hospital and Health Center, a 233-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Oregon and Pennsylvania.

Years since qualifying
13
Licensed in
OR, PA
In the registry since
2013
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

335 SE 8th Ave
Hillsboro, OR 97123-4246
Phone: (503) 681-1919
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1225 Ne 2nd Ave, Portland, OR 97232-2003 — (503) 944-8000
  • 555 N Duke St, Lancaster, PA 17602-2250 — (717) 544-5831

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD188101 (OR)
Psychiatry Physician Taxonomy 2084P0800X · Licence MD468783 (PA)

Record details

NPI number1396087052
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 20, 2013
Last updated in NPPESNovember 10, 2025
Certification dateNovember 10, 2025

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Legacy Emanuel Hospital And Health Center — 233 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients17
Services billed 25 a service is one billed item, such as a visit, a test or a procedure
Average patient age64

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Legacy Emanuel Medical Center Hospital · Portland, OR

Colleagues at Legacy Emanuel Hospital and Health Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 233 clinicians in the practice; 12 are shown here.

Other providers in Hillsboro