LYDIA E DE LEON
NPI 1235556176
Counselor - Mental Health in Wilmington, DE

Active since March 27, 2014PECOS Enrolled
1802 W 4TH ST, WILMINGTON, DE 19805(302) 652-2455 Get Directions Write a Review

NPPES record last updated: March 19, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 19, 2020, Feb 4, 2020 (2 updates tracked since 2020).

About Lydia E De Leon NPPES

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

LYDIA E DE LEON (NPI 1235556176) is an individual mental health provider in Wilmington, Delaware and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235556176
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameLYDIA E DE LEON
Location Address1802 W 4TH STWilmington, DE 19805-3420
Mailing AddressPo Box 151New Castle, DE 19720-0151 · (302) 333-1402
Sole ProprietorNo
Enumeration DateMarch 27, 2014
Last NPPES UpdateMarch 19, 20202 updates tracked since enumeration
NPPES CertifiedMarch 19, 2020
✔ NPI 1235556176 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
1802 W 4TH ST, Wilmington, DE 19805

Other Names 1

Former Name (1)Lydia E Maldonado

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lydia E De Leon is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Lydia De Leon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
1802 W 4TH ST
Wilmington, DE 19805
  • Reassigned Medicare billing, Delaware enrollment
  • 88 clinicians in this Medicare group

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

Other Providers at the Same Location NPPES 20

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

Family Medicine
1802 W 4TH ST
WILMINGTON, DE 19805
Family Medicine
1802 W 4TH ST
WILMINGTON, DE 19805
Family Medicine
1802 W 4TH ST
WILMINGTON, DE 19805
Nurse Practitioner (Psychiatric/Mental Health)
1802 W 4TH ST
WILMINGTON, DE 19805
Counselor (Mental Health)
1802 W 4TH ST
WILMINGTON, DE 19805
Pediatrics
1802 W 4TH ST
WILMINGTON, DE 19805
Registered Nurse
1802 W 4TH ST
WILMINGTON, DE 19805
Nurse's Aide
1802 W 4TH ST
WILMINGTON, DE 19805

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 Lydia De Leon's NPI number?

The NPI number for Lydia De Leon is 1235556176. It was assigned to this individual provider in the NPPES registry on March 27, 2014. The provider is also known as Lydia E Maldonado.

Where is Lydia De Leon located?

Lydia De Leon practices at 1802 W 4th St, Wilmington, DE 19805. The listed phone number is (302) 652-2455.

What is Lydia De Leon's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Lydia De Leon enrolled in Medicare?

Yes. Lydia De Leon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lydia De Leon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lydia De Leon reassigns Medicare benefits to Westside Family Healthcare, Inc. (Wilmington, DE). The 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 Lydia De Leon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lydia De Leon accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Lydia De Leon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Lydia De Leon was last updated on March 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.