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NEUROPSYCHOLOGICAL ASSESSMENT AND THERAPY SERVICES, LLC
NPI 1104202902
Clinical Neuropsychologist in Berwyn, PA

Active since August 04, 2015
1199 LANCASTER AVE STE 110, BERWYN, PA 19312(610) 241-4331(484) 870-5609 Get Directions Write a Review

NPPES record last updated: March 28, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 28, 2025, Jan 31, 2023, Aug 2, 2021 and 2 more (5 updates tracked since 2017).

About Neuropsychological Assessment And Therapy Services, Llc NPPES

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

NEUROPSYCHOLOGICAL ASSESSMENT AND THERAPY SERVICES, LLC (NPI 1104202902) is a healthcare organization registered as a clinical neuropsychologist in Berwyn, Pennsylvania and active in the NPI registry since August 2015. The organization lists Julie Lynn Guay, Owner, as its authorized official.

NPPES Registry Identity

NPI1104202902
Entity TypeOrganization
Primary Taxonomy103G00000X
Legal Business NameNEUROPSYCHOLOGICAL ASSESSMENT AND THERAPY SERVICES, LLC
Location Address1199 LANCASTER AVE STE 110Berwyn, PA 19312-1341
Mailing Address1199 Lancaster Ave Ste 110Berwyn, PA 19312-1341 · (610) 241-4331 · Fax (484) 416-0560
Phone(610) 241-4331
Fax(484) 870-5609
Organization SubpartNo
Authorized OfficialJulie Lynn GuayOwner · (267) 559-5626
Enumeration DateAugust 4, 2015
Last NPPES UpdateMarch 28, 20255 updates tracked since enumeration
NPPES CertifiedMarch 28, 2025
✔ NPI 1104202902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
1199 LANCASTER AVE STE 110, Berwyn, PA 19312
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Neuropsychological Assessment And Therapy Services, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Neuropsychological Assessment And Therapy Services, LLC, which bills Medicare for the services they deliver. Of these, 4 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Juliana Bowland
Clinical Psychologist
NPI 1043883945
1199 LANCASTER AVE STE 105
Berwyn, PA 19312
(410) 443-6692
✔ PECOS✔ Accepts MedicareSame address
Julie Guay, PSY.D., ABPP
Clinical Psychologist
NPI 1831331420
1199 LANCASTER AVE STE 110
Berwyn, PA 19312
(610) 241-4331
✔ PECOS✔ Accepts MedicareSame address
Julie Keaveney, PSY.D.
Clinical Psychologist
NPI 1215967450
1199 LANCASTER AVE STE 110
Berwyn, PA 19312
(610) 241-4331
✔ PECOS✔ Accepts MedicareSame address
Jamie Vanartsdalen, PSYD
Clinical Psychologist
NPI 1114620465
1199 LANCASTER AVE STE 110
Berwyn, PA 19312
(610) 241-4331
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Neuropsychological Assessment And Therapy Services, LLC's NPI number?

The NPI number for Neuropsychological Assessment And Therapy Services, LLC is 1104202902. It was assigned to this organization in the NPPES registry on August 4, 2015.

Where is Neuropsychological Assessment And Therapy Services, LLC located?

Neuropsychological Assessment And Therapy Services, LLC is located at 1199 Lancaster Ave Ste 110, Berwyn, PA 19312. The listed phone number is (610) 241-4331.

What is Neuropsychological Assessment And Therapy Services, LLC's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Neuropsychological Assessment And Therapy Services, LLC enrolled in Medicare?

Yes. Neuropsychological Assessment And Therapy Services, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Neuropsychological Assessment And Therapy Services, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Clinical Psychologist, reassign their Medicare billing to Neuropsychological Assessment And Therapy Services, LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 4 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Neuropsychological Assessment And Therapy Services, LLC was last updated on March 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.