Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mary Elizabeth De Ferreire, PHD

Individual provider Clinical Psychologist · NPI 1306021555

Dr. Mary Elizabeth De Ferreire, PHD is a Clinical Psychologist in McAllen, Texas. Licensed in Texas. Registered with an NPI since 2008.

Licensed in
TX
In the registry since
2008
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

507 W Nolana Ave
McAllen, TX 78504-3029
Phone: (956) 688-6229
Fax: (956) 688-6218
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 25118 (TX)

Record details

NPI number1306021555
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 7, 2008
Last updated in NPPESMarch 22, 2012

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