Ladonna Johnson, D.O.
NPI 1124103445 · Family Medicine Physician · Corvallis, OR
Ladonna Johnson, D.O. is a Family Medicine Physician provider in Corvallis, OR (NPI 1124103445).
Provider details
- NPI number
- 1124103445
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- DO19146 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-26
- Last updated
- 2015-08-05
Frequently asked questions
- What is Ladonna Johnson's NPI number?
- Ladonna Johnson's National Provider Identifier (NPI) is 1124103445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ladonna Johnson's specialty?
- Ladonna Johnson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ladonna Johnson located?
- Ladonna Johnson's practice location on file with NPPES is 201 Plageman Bldg, Corvallis, OR 97331-5801.
- What is Ladonna Johnson's phone number?
- The practice phone number listed in the NPPES registry for Ladonna Johnson is (541) 737-3106.
- Is Ladonna Johnson's NPI active?
- Yes — Ladonna Johnson's NPI (1124103445) is active in the NPPES registry as of the last update on 2015-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.