E. EUGENE DELONG, PH.D. LLC
NPI 1093507048
Psychologist in Lancaster, PA

Active since May 17, 2025
313 W LIBERTY ST STE 363, LANCASTER, PA 17603(717) 606-2904 Get Directions Write a Review

NPPES record last updated: May 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 21, 2025, May 17, 2025 (2 updates tracked since 2025).

About E. Eugene Delong, Ph.d. Llc NPPES

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

E. EUGENE DELONG, PH.D. LLC (NPI 1093507048) is a healthcare organization registered as a psychologist in Lancaster, Pennsylvania and active in the NPI registry since May 2025. The organization lists Earl Eugene Delong, Owner, as its authorized official.

NPPES Registry Identity

NPI1093507048
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameE. EUGENE DELONG, PH.D. LLC
Location Address313 W LIBERTY ST STE 363Lancaster, PA 17603-2798
Mailing Address313 W Liberty St Ste 363Lancaster, PA 17603-2798 · (717) 606-2904
Organization SubpartNo
Authorized OfficialEarl Eugene DelongOwner · (717) 606-2904
Enumeration DateMay 17, 2025
Last NPPES UpdateMay 21, 20252 updates tracked since enumeration
NPPES CertifiedMay 21, 2025
✔ NPI 1093507048 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
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.
313 W LIBERTY ST STE 363, Lancaster, PA 17603

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)

E. Eugene Delong, Ph.d. Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to E. Eugene Delong, Ph.D. LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Psychologist
NPI 1477906881
313 W LIBERTY ST STE 363
Lancaster, PA 17603
(717) 606-2904
✔ 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 E. Eugene Delong, Ph.D. LLC's NPI number?

The NPI number for E. Eugene Delong, Ph.D. LLC is 1093507048. It was assigned to this organization in the NPPES registry on May 17, 2025.

Where is E. Eugene Delong, Ph.D. LLC located?

E. Eugene Delong, Ph.D. LLC is located at 313 W Liberty St Ste 363, Lancaster, PA 17603. The listed phone number is (717) 606-2904.

What is E. Eugene Delong, Ph.D. LLC's specialty?

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

Is E. Eugene Delong, Ph.D. LLC enrolled in Medicare?

Yes. E. Eugene Delong, Ph.D. LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through E. Eugene Delong, Ph.D. LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to E. Eugene Delong, Ph.D. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for E. Eugene Delong, Ph.D. LLC was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.