John Johansson, MD PHD
NPI 1447284344 · Ophthalmology Physician · Oroville, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Johansson, MD PHD is a Ophthalmology Physician provider in Oroville, CA (NPI 1447284344).
Provider details
- NPI number
- 1447284344
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A46646 (CA)
Specialties & taxonomies
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
- 2006-07-10
- Last updated
- 2019-03-11
Frequently asked questions
- What is John Johansson's NPI number?
- John Johansson's National Provider Identifier (NPI) is 1447284344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Johansson's specialty?
- John Johansson is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Johansson located?
- John Johansson's practice location on file with NPPES is 2809 Olive Hwy, Oroville, CA 95966.
- What is John Johansson's phone number?
- The practice phone number listed in the NPPES registry for John Johansson is (530) 534-1400.
- Does John Johansson accept Medicare?
- John Johansson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Johansson's NPI active?
- Yes — John Johansson's NPI (1447284344) is active in the NPPES registry as of the last update on 2019-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.