DEREK J PARKER M.A., M.S., PH.D.
NPI 1679919633
Counselor - Professional in Du Bois, PA

Active since May 17, 2013PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: April 22, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 22, 2026, Sep 2, 2025, Nov 14, 2023 and 1 more (4 updates tracked since 2023).

About Derek J Parker M.a., M.s., Ph.d. NPPES

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

DEREK J PARKER M.A., M.S., PH.D. (NPI 1679919633) is an individual professional provider in Du Bois, Pennsylvania and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, maintains 6 additional practice locations, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1679919633
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NameDEREK J PARKERCredential: M.A., M.S., PH.D.
Location Address420 1ST STDu Bois, PA 15801-3012
Mailing Address56 Graham AveBrookville, PA 15825-1403 · (814) 221-5744
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateMay 17, 2013
Last NPPES UpdateApril 22, 20264 updates tracked since enumeration
NPPES CertifiedApril 22, 2026
NPI 1679919633 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
420 1ST ST, Du Bois, PA 15801

Secondary Practice Locations 6

Location 1140 N Saint Marys StSaint Marys, PA 15857-1236 · Phone (724) 396-1510 · Fax (724) 972-4627
Location 2169 West College StreetWaynesburg, PA 15370-1319 · Phone (724) 396-1510 · Fax (724) 972-4627
Location 3100 W Long AveDu Bois, PA 15801-2104 · Phone (814) 221-5744
Location 4205 Jefferson StBrookville, PA 15825-1144 · Phone (724) 396-1510 · Fax (724) 972-4627
Location 556 Graham AveBrookville, PA 15825-1403 · Phone (814) 221-5744
Location 62785 Walston RdPunxsutawney, PA 15767-2625 · Phone (724) 396-1510 · Fax (724) 972-4627

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Derek J Parker M.a., M.s., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123552155
PECOS Enrollment IDI20241113000717
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES

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

Counselor (Professional)
420 1ST ST
DU BOIS, PA 15801

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 Derek Parker's NPI number?

The NPI number for Derek Parker is 1679919633. It was assigned to this individual provider in the NPPES registry on May 17, 2013.

Where is Derek Parker located?

Derek Parker practices at 420 1st St, Du Bois, PA 15801. The listed phone number is (814) 221-5744.

What is Derek Parker's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Derek Parker enrolled in Medicare?

Yes. Derek Parker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Derek Parker was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.