Josephine Castaneda-Diffenderffer
NPI 1255534806 · Rehabilitation Practitioner · San Diego, CA
Josephine Castaneda-Diffenderffer is a Rehabilitation Practitioner provider in San Diego, CA (NPI 1255534806).
Provider details
- NPI number
- 1255534806
- Entity type
- Individual
- Primary specialty
- Rehabilitation PractitionerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative 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
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
Mailing address
Registry dates
- Enumerated
- 2007-06-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Josephine Castaneda-Diffenderffer's NPI number?
- Josephine Castaneda-Diffenderffer's National Provider Identifier (NPI) is 1255534806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josephine Castaneda-Diffenderffer's specialty?
- Josephine Castaneda-Diffenderffer is listed in the NPPES registry with a primary specialty of Rehabilitation Practitioner (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Josephine Castaneda-Diffenderffer located?
- Josephine Castaneda-Diffenderffer's practice location on file with NPPES is 1940 Market St, San Diego, CA 92102-2833.
- What is Josephine Castaneda-Diffenderffer's phone number?
- The practice phone number listed in the NPPES registry for Josephine Castaneda-Diffenderffer is (619) 233-3381.
- Is Josephine Castaneda-Diffenderffer's NPI active?
- Yes — Josephine Castaneda-Diffenderffer's NPI (1255534806) 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.