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

MARIELLE MARTINO MATHEWS PSYD
NPI 1922866334
Psychologist in Havertown, PA

Active since March 11, 2024
525 W CHESTER PIKE, HAVERTOWN, PA 19083(484) 254-6371 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Marielle Martino Mathews Psyd NPPES

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

MARIELLE MARTINO MATHEWS PSYD (NPI 1922866334) is an individual psychologist in Havertown, Pennsylvania, licensed in Pennsylvania (PS018751) and active in the NPI registry since March 2024. She maintains a secondary practice location in Wausau.

NPPES Registry Identity

NPI1922866334
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameMARIELLE MARTINO MATHEWSCredential: PSYD
Location Address525 W CHESTER PIKEHavertown, PA 19083-4500
Mailing Address525 W Chester PikeHavertown, PA 19083-4500 · (484) 254-6371
Sole ProprietorYes
Enumeration DateMarch 11, 2024
Last NPPES UpdateJuly 2, 2026
NPPES CertifiedJuly 2, 2026
NPI 1922866334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in PA · PS018751
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
525 W CHESTER PIKE, Havertown, PA 19083

Secondary Practice Location 1

Location 1630 S 36th AveWausau, WI 54401-3930 · Phone (715) 842-9500 · Fax (715) 848-0425

Other Providers at the Same Location NPPES 20

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

Internal Medicine
525 W CHESTER PIKE, SUITE 102-B
HAVERTOWN, PA 19083
Physical Therapist
525 W CHESTER PIKE
HAVERTOWN, PA 19083
Counselor
525 W CHESTER PIKE, SUITE 205
HAVERTOWN, PA 19083
Physical Therapist
525 W CHESTER PIKE
HAVERTOWN, PA 19083
Counselor (Professional)
525 W CHESTER PIKE, SUITE 205
HAVERTOWN, PA 19083
Acupuncturist
525 W CHESTER PIKE, #103A
HAVERTOWN, PA 19083
Physical Therapist (Orthopedic)
525 W CHESTER PIKE, SUITE 202
HAVERTOWN, PA 19083
Physical Therapist
525 W CHESTER PIKE, SUITE 202
HAVERTOWN, PA 19083

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 Marielle Mathews's NPI number?

The NPI number for Marielle Mathews is 1922866334. It was assigned to this individual provider in the NPPES registry on March 11, 2024.

Where is Marielle Mathews located?

Marielle Mathews practices at 525 W Chester Pike, Havertown, PA 19083. The listed phone number is (484) 254-6371.

What is Marielle Mathews's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for Marielle Mathews was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 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.