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

Dr. Dwaine Anthony Tesnohlidek, MD

Individual provider Surgery Physician · NPI 1437240009

Dr. Dwaine Anthony Tesnohlidek, MD is a General Surgery in Ontario, Oregon. Graduated from University of Washington School of Medicine in 1989, 37 years ago. Practices with Saint Alphonsus Medical Center- Ontario Inc, a 41-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Idaho and Oregon.

Years since qualifying
37
Trained at
University of Washington School of Medicine
Licensed in
ID, OR
In the registry since
2006
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

351 SW 9th St
Ontario, OR 97914-2639
Phone: (541) 881-7184
Fax: (541) 881-7016
Show map & directions

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

Additional practice locations (1)

  • 1210 Nw 16th St, Fruitland, ID 83619-2202 — (208) 452-8600

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MD18758 (OR)
Surgery Physician Taxonomy 208600000X · Licence M6508 (ID)

Record details

NPI number1437240009
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 27, 2006
Last updated in NPPESApril 18, 2025
Certification dateApril 18, 2025

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Saint Alphonsus Medical Center- Ontario Inc — 41 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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