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Guillermo Diaz, MBA
NPI 1033428644 · Case Manager/Care Coordinator · Alturas, CA
Guillermo Diaz, MBA is a Case Manager/Care Coordinator provider in Alturas, CA (NPI 1033428644).
Provider details
- NPI number
- 1033428644
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Credential
- MBA
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(76/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
441 N Main St
Alturas, CA 96101-3457
Phone: (530) 233-6312
Fax: (530) 233-6339
Street-level locationGet directions
Mailing address
441 N Main St
Alturas, CA 96101-3457
Registry dates
- Enumerated
- 2010-09-29
- Last updated
- 2010-09-29
Frequently asked questions
- What is Guillermo Diaz's NPI number?
- Guillermo Diaz's National Provider Identifier (NPI) is 1033428644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Diaz's specialty?
- Guillermo Diaz is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Guillermo Diaz located?
- Guillermo Diaz's practice location on file with NPPES is 441 N Main St, Alturas, CA 96101-3457.
- What is Guillermo Diaz's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Diaz is (530) 233-6312.
- Is Guillermo Diaz's NPI active?
- Yes — Guillermo Diaz's NPI (1033428644) is active in the NPPES registry as of the last update on 2010-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.