Mattie Holliday
Intellectual & Developmental Disabilities Psychologist · Newark, DE
Mattie Holliday is an intellectual & developmental disabilities psychologist with a practice address in Newark, Delaware, and NPI 1700484060, issued on Oct 9, 2020. Check the license with the Delaware board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mattie Holliday
- Primary taxonomy
- Intellectual & Developmental Disabilities Psychologist 103TM1800X
- Practice location
- 16 Octave CT, Newark, DE 19713
- Phone
- (302) 377-5774
- Enumerated
- Oct 9, 2020
- Record last updated
- Oct 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 000000568 DE
- Entity
- Type 1 · individual
Verify Mattie Holliday in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Intellectual & Developmental Disabilities Psychologist providers in Delaware
There are 159 intellectual & developmental disabilities psychologist records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other intellectual & developmental disabilities psychologist records in Delaware
- Farida AbdallaMagnolia, DE1841897048
- Nafeisa Abdalla-ReedDover, DE1104555929
- Jaime AbdullahMagnolia, DE1467238998
- Nicole AddisonMiddletown, DE1922999002
- Oluwadamilare AdeoyeTownsend, DE1558231043
- Daniel AdjocyDover, DE1942807433
- Abdulazeez AgabaDover, DE1891392049
- Letticia Amoah-MensahMiddletown, DE1346987641
- Brian AndrewsDover, DE1790382885
- Mildred AppiahNew Castle, DE1285352609
Common questions
What is Mattie Holliday's NPI number?
Mattie Holliday's National Provider Identifier (NPI) is 1700484060, issued on Oct 9, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mattie Holliday located?
The NPPES record lists a practice address at 16 Octave CT, Newark, DE, 19713. Phone: (302) 377-5774. Providers update this record themselves, so call before visiting.
How can I verify Mattie Holliday's license?
Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.