DR. DEBORAH DIFERDINANDO PSY.D., MFT, CADCII
NPI 1609978931
Psychologist - Clinical in Carlsbad, CA

Q: What is Deborah Diferdinando's NPI number?

The NPI number for Deborah Diferdinando is 1609978931. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Q: What is Deborah Diferdinando's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since September 05, 2006

2564 STATE ST, STE B, CARLSBAD, CA 92008(760) 822-4877(760) 842-1313 Get Directions Write a Review

NPPES record last updated: August 16, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Deborah Diferdinando Psy.d., Mft, Cadcii NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DEBORAH DIFERDINANDO PSY.D., MFT, CADCII (NPI 1609978931) is an individual clinical provider in Carlsbad, California, licensed in California (PSY22608) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1609978931

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. DEBORAH DIFERDINANDOCredential: PSY.D., MFT, CADCII

Location Address2564 STATE ST, STE BCarlsbad, CA 92008-1662

Mailing Address1611a S. Melrose Dr., #301Vista, CA 92081 · (760) 822-4877 · Fax (760) 842-1313

Phone(760) 822-4877

Fax(760) 842-1313

Sole ProprietorYes

Enumeration DateSeptember 5, 2006

Last NPPES UpdateAugust 16, 2009

✔ NPI 1609978931 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY22608

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License A8381801 (CA)

Also ListedMarriage & Family TherapistTaxonomy 106H00000X · License MFC37170 (CA)

2564 STATE ST, Carlsbad, CA 92008

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Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BRIAN T KILLEEN DC QME

Chiropractor

2564 STATE ST, PLAZA FLORES SUITE A
CARLSBAD, CA 92008

San Diego County (760) 434-8134

ALICE U. KAMMERMAN M.A., L.M.F.T.

Marriage & Family Therapist

2564 STATE ST, SUITE B
CARLSBAD, CA 92008

San Diego County (760) 729-4931

DR. CHAD RANDALL CHAPMAN D.C.

Chiropractor

2564 STATE ST, STE. A
CARLSBAD, CA 92008

San Diego County (760) 434-8134

DR. MARK KAMMERMAN PH.D.

Psychologist (Clinical)

2564 STATE ST, SUITE B
CARLSBAD, CA 92008

San Diego County (760) 729-4931

MR. JAMES RUJUN TSAI ACUPUNCTURIST

Acupuncturist

2564 STATE ST, SUITE A
CARLSBAD, CA 92008

San Diego County (760) 720-7367

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Deborah Diferdinando's NPI number?

The NPI number for Deborah Diferdinando is 1609978931. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Where is Deborah Diferdinando located?

Deborah Diferdinando practices at 2564 State St Ste B, Carlsbad, CA 92008. The listed phone number is (760) 822-4877.

What is Deborah Diferdinando's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Deborah Diferdinando was last updated on August 16, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.