William Diaz, D.C.
NPI 1386634004 · Chiropractor · Arecibo, PR
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Diaz, D.C. is a Chiropractor provider in Arecibo, PR (NPI 1386634004).
Provider details
- NPI number
- 1386634004
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- License
- 326 (PR)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-10-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Diaz's NPI number?
- William Diaz's National Provider Identifier (NPI) is 1386634004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Diaz's specialty?
- William Diaz is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is William Diaz located?
- William Diaz's practice location on file with NPPES is Urb. San Lorenzo, Arecibo, PR 00612.
- What is William Diaz's phone number?
- The practice phone number listed in the NPPES registry for William Diaz is (787) 816-8119.
- Does William Diaz accept Medicare?
- William Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Diaz's NPI active?
- Yes — William Diaz's NPI (1386634004) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.