Josephine M. Castaneda-Diffenderffer
Rehabilitation Practitioner · San Diego, CA
Josephine M. Castaneda-Diffenderffer is a rehabilitation practitioner with a practice address in San Diego, California, and NPI 1255534806, issued on Jun 8, 2007. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Josephine M. Castaneda-Diffenderffer
- Primary taxonomy
- Rehabilitation Practitioner 225400000X
- Practice location
- 1940 Market St, San Diego, CA 92102
- Phone
- (619) 233-3381
- Enumerated
- Jun 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (619) 236-8240
- Entity
- Type 1 · individual
Also registered at 1940 Market St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paulina BrettsCounselor1578861886
- Alison ConleyCase Manager/Care Coordinator1912280637
- Lizbeth CruzCase Manager/Care Coordinator1467761734
- Cynthia HartCase Manager/Care Coordinator1336347863
- Shana JonesRehabilitation Practitioner1548565096
- Miriam Keiling, LCSWClinical Social Worker1306072095
Verify Josephine M. Castaneda-Diffenderffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
596 rehabilitation practitioner records list a practice address in San Diego
They are 596 of the 52,937 NPPES records with a practice address in San Diego, and 13,765 rehabilitation practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 596 in San Diego → All 13,765 in California → Every provider in San Diego →
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Common questions
What is Josephine M. Castaneda-Diffenderffer's NPI number?
Josephine M. Castaneda-Diffenderffer's National Provider Identifier (NPI) is 1255534806, issued on Jun 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Josephine M. Castaneda-Diffenderffer located?
The NPPES record lists a practice address at 1940 Market St, San Diego, CA, 92102. Phone: (619) 233-3381. Providers update this record themselves, so call before visiting.
How can I verify Josephine M. Castaneda-Diffenderffer's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.