Psychologist | Mental Retardation & Developmental Disabilities Psychology

Mattie Holliday

16 Octave Ct, Newark, Delaware, 19713-1915

About Mattie Holliday

Mattie Holliday is a psychologist based in Newark, Delaware who is specialized in Mental Retardation & Developmental Disabilities Psychology. Her current practice location is 16 Octave Ct, Newark. Patients can contact her at 302-377-5774. Mattie Holliday NPI number (Unique professional ID assigned by NPPES) is 1700484060.

Mattie Holliday

Practice Information

Mattie Holliday's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Mattie Holliday
Specialization Mental Retardation & Developmental Disabilities Psychology
Gender Female
Practice Address: 16 Octave Ct,
Newark, DE - 19713-1915

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1700484060
NPI Enumeration Date: 09 Oct, 2020
NPI Last Update On: 09 Oct, 2020

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Mattie Holliday are as mentioned below.

License NumberSpecializationStateStatus
Mental Retardation & Developmental Disabilities Psychology DelawarePrimary

Other Medical Identifiers

Other professional identifiers associated with Mattie Holliday such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
000000568MedicaidDelaware

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Mattie Holliday
16 Octave Ct,
Newark, DE - 19713-1915
Phone: 302-377-5774

Book an Appointment with Mattie Holliday

To schedule an appointment, contact Mattie Holliday at 16 Octave Ct, Newark, Delaware or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mattie Holliday:

Mattie Holliday is a psychologist specializing in Mental Retardation & Developmental Disabilities Psychology. She

Yes, Mattie Holliday is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Mattie Holliday practices at 16 Octave Ct, Newark, Delaware, 19713-1915.

To schedule an appointment with Mattie Holliday, please contact the office at 302-377-5774.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.