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

Dr. Ladonna Mae Johnson, DO

Individual provider Family Medicine Physician · NPI 1124103445

Dr. Ladonna Mae Johnson, DO is a Family Medicine Physician in Corvallis, Oregon. Licensed in California and Oregon. Registered with an NPI since 2006.

Licensed in
CA, OR
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

201 Plageman Bldg Oregon State University - Student Health
Corvallis, OR 97331-5801
Phone: (541) 737-3106
Fax: (541) 737-4530
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence DO19146 (OR)
Family Medicine Physician Taxonomy 207Q00000X · Licence 20A5511 (CA)

Record details

NPI number1124103445
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 26, 2006
Last updated in NPPESAugust 5, 2015

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