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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARIA TERESA ALONSO PHD
NPI 1639179922
Psychologist - Clinical in Wilmington, DE

Active since July 28, 2005
1014 DARLEY RD, WILMINGTON, DE 19810(302) 530-9298(302) 655-3237 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Maria Teresa Alonso Phd NPPES

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

DR. MARIA TERESA ALONSO PHD (NPI 1639179922) is an individual clinical provider in Wilmington, Delaware, licensed in Delaware (BI0000558) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1639179922
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MARIA TERESA ALONSOCredential: PHD
Location Address1014 DARLEY RDWilmington, DE 19810-2910
Mailing Address1014 Darley RdWilmington, DE 19810-2910 · (302) 530-9298 · Fax (302) 655-3237
Phone(302) 530-9298
Fax(302) 655-3237
Sole ProprietorNo
Enumeration DateJuly 28, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1639179922 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
Licenses✔ Licensed in DE · BI0000558✔ Licensed in NY · 013188
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.
1014 DARLEY RD, Wilmington, DE 19810
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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 Maria Alonso's NPI number?

The NPI number for Maria Alonso is 1639179922. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Where is Maria Alonso located?

Maria Alonso practices at 1014 Darley Rd, Wilmington, DE 19810. The listed phone number is (302) 530-9298.

What is Maria Alonso'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 Maria Alonso was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.