Deborah Diferdinando, PSY.D., MFT, CADCII
NPI 1609978931 · Clinical Psychologist · Carlsbad, CA
Deborah Diferdinando, PSY.D., MFT, CADCII is a Clinical Psychologist provider in Carlsbad, CA (NPI 1609978931).
Provider details
- NPI number
- 1609978931
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D., MFT, CADCII
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY22608 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social 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
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
- 2006-09-05
- Last updated
- 2009-08-16
Frequently asked questions
- What is Deborah Diferdinando's NPI number?
- Deborah Diferdinando's National Provider Identifier (NPI) is 1609978931, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Diferdinando's specialty?
- Deborah Diferdinando is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Deborah Diferdinando located?
- Deborah Diferdinando's practice location on file with NPPES is 2564 State St, Carlsbad, CA 92008-1662.
- What is Deborah Diferdinando's phone number?
- The practice phone number listed in the NPPES registry for Deborah Diferdinando is (760) 822-4877.
- Is Deborah Diferdinando's NPI active?
- Yes — Deborah Diferdinando's NPI (1609978931) is active in the NPPES registry as of the last update on 2009-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.