David Dufour, D.C.
NPI 1659637999 · Chiropractor · San Leandro, CA
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Dufour, D.C. is a Chiropractor provider in San Leandro, CA (NPI 1659637999).
Provider details
- NPI number
- 1659637999
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 32251 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
- 2012-04-10
- Last updated
- 2012-04-10
Frequently asked questions
- What is David Dufour's NPI number?
- David Dufour's National Provider Identifier (NPI) is 1659637999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Dufour's specialty?
- David Dufour is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is David Dufour located?
- David Dufour's practice location on file with NPPES is 585 Dowling Blvd, San Leandro, CA 94577-1905.
- What is David Dufour's phone number?
- The practice phone number listed in the NPPES registry for David Dufour is (510) 346-0711.
- Does David Dufour accept Medicare?
- David Dufour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Dufour's NPI active?
- Yes — David Dufour's NPI (1659637999) is active in the NPPES registry as of the last update on 2012-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.