Warren Johnson, DPM
NPI 1457423469 · Foot & Ankle Surgery Podiatrist · Fremont, CA
Warren Johnson, DPM is a Foot & Ankle Surgery Podiatrist provider in Fremont, CA (NPI 1457423469).
Provider details
- NPI number
- 1457423469
- Entity type
- Individual
- Primary specialty
- Foot & Ankle Surgery PodiatristPodiatric Medicine & Surgery Service Providers
- Credential
- DPM
- Sex
- Male
- Sole proprietor
- No
- License
- E1285 (CA)
Specialties & taxonomies
Podiatric Medicine & Surgery Service Providers
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
- 2006-11-14
- Last updated
- 2018-01-20
Frequently asked questions
- What is Warren Johnson's NPI number?
- Warren Johnson's National Provider Identifier (NPI) is 1457423469, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Johnson's specialty?
- Warren Johnson is listed in the NPPES registry with a primary specialty of Foot & Ankle Surgery Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is Warren Johnson located?
- Warren Johnson's practice location on file with NPPES is 3775 Beacon Ave, Fremont, CA 94538-1466.
- What is Warren Johnson's phone number?
- The practice phone number listed in the NPPES registry for Warren Johnson is (510) 794-6633.
- Is Warren Johnson's NPI active?
- Yes — Warren Johnson's NPI (1457423469) is active in the NPPES registry as of the last update on 2018-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.