Ruben Caballero, NP
NPI 1891870879 · Family Nurse Practitioner · Martinez, CA
Ruben Caballero, NP is a Family Nurse Practitioner provider in Martinez, CA (NPI 1891870879).
Provider details
- NPI number
- 1891870879
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- RN443158 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
- 2006-10-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ruben Caballero's NPI number?
- Ruben Caballero's National Provider Identifier (NPI) is 1891870879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruben Caballero's specialty?
- Ruben Caballero is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ruben Caballero located?
- Ruben Caballero's practice location on file with NPPES is 2500 Alhambra Avenue, Martinez, CA 94553-3156.
- What is Ruben Caballero's phone number?
- The practice phone number listed in the NPPES registry for Ruben Caballero is (925) 370-5110.
- Is Ruben Caballero's NPI active?
- Yes — Ruben Caballero's NPI (1891870879) 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.