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

Joseph Tristan Napiza Oconer, MD

Individual provider Hospitalist Physician · NPI 1942400858

Joseph Tristan Napiza Oconer, MD is registered under Family Practice in Lebanon, Oregon. Qualified in 2002, 24 years ago. Practices with Santiam Memorial Hospital, a 125-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
24
Licensed in
OR
In the registry since
2007
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

525 N Santiam Hwy
Lebanon, OR 97355-4363
Phone: (541) 258-2101
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 43o1 W.Markham St., Little Rock, AR 72205 — (501) 686-5000

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD158088 (OR)
Hospitalist Physician Taxonomy 208M00000X · Licence MD158088 (OR)

Record details

NPI number1942400858
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2007
Last updated in NPPESJune 11, 2025
Certification dateJune 11, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Santiam Memorial Hospital — 125 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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 patients77
Services billed 154 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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. Those with a page here are linked.

  • Salem Hospital Hospital · Salem, OR
  • Santiam Hospital & Clinics Hospital · Stayton, OR

Colleagues at Santiam Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 125 clinicians in the practice; 12 are shown here.

Other providers in Lebanon