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

Four Rivers Anesthesia PC

Organization Certified Registered Nurse Anesthetist · NPI 1801097407

Four Rivers Anesthesia PC provides Certified Registered Nurse Anesthetist services in Ontario, Oregon. Licensed in Oregon. Registered with an NPI since 2007.

Licensed in
OR
In the registry since
2007
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

351 SW 9th St
Ontario, OR 97914 Not confirmed with CMS for 15 years — call before visiting
Phone: (541) 889-5331
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 096007764CRNA (OR)

Record details

NPI number1801097407
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michael Ohara — Owner · (208) 642-9293
NPI enumeratedMay 30, 2007
Last updated in NPPESNovember 1, 2010
Mailing address5319 Sw Westgate Dr, 241, Portland, OR 97221-2432

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