J & L DE LEON MEDICAL CORPORATION
NPI 1760407621
Pediatrics in Paramount, CA

Q: What is J & L De Leon Medical Corporation's NPI number?

The NPI number for J & L De Leon Medical Corporation is 1760407621. It was assigned to this organization in the NPPES registry on July 13, 2006.

Q: What is J & L De Leon Medical Corporation's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Active since July 13, 2006CLIA 05D0553445 · Waiver

16660 PARAMOUNT BLVD, SUITE # 211, PARAMOUNT, CA 90723(562) 633-5438(562) 633-1685 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

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About J & L De Leon Medical Corporation NPPES

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

J & L DE LEON MEDICAL CORPORATION (NPI 1760407621) is a healthcare organization registered as a pediatrics in Paramount, California and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through August 31, 2028 and lists Jesse Mata De Leon, President, as its authorized official.

NPPES Registry Identity

NPI1760407621

Entity TypeOrganization

Primary Taxonomy208000000X

Legal Business NameJ & L DE LEON MEDICAL CORPORATION

Location Address16660 PARAMOUNT BLVD, SUITE # 211Paramount, CA 90723-5433

Mailing Address16660 Paramount Blvd, Suite # 211Paramount, CA 90723-5433 · (562) 633-5438 · Fax (562) 633-1685

Phone(562) 633-5438

Fax(562) 633-1685

Organization SubpartNo

Authorized OfficialJesse Mata De LeonPresident · (562) 633-5438

Enumeration DateJuly 13, 2006

Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration

✔ NPI 1760407621 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Also ListedOphthalmologyTaxonomy 207W00000X

Other Identifiers 1

MedicaidGR0099220CA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

J & L De Leon Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateCaliforniaEnrollment IDO20101203001154Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to J & L De Leon Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Liberation De Leon, M.D.

Pediatric Medicine

NPI 1912120379

16660 PARAMOUNT BLVD SUITE 211
Paramount, CA 90723

(562) 633-5438

✔ PECOS✔ Accepts Medicare

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0553445

J & L De Leon Medical Corporation · Paramount, CA

Active · expires Aug 31, 2028

CLIA Number05D0553445

Laboratory TypePhysician Office

Certificate Effective DateSeptember 1, 2026

Certificate Expiration DateAugust 31, 2028

Laboratory DirectorDr. Liberation B. De Leon

Laboratory Phone(562) 633-5438

Laboratory LocationJ & L De Leon Medical Corporation16660 Paramount Blvd Ste 211, Paramount, CA 90723

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

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 J & L De Leon Medical Corporation's NPI number?

The NPI number for J & L De Leon Medical Corporation is 1760407621. It was assigned to this organization in the NPPES registry on July 13, 2006.

Where is J & L De Leon Medical Corporation located?

J & L De Leon Medical Corporation is located at 16660 Paramount Blvd Suite # 211, Paramount, CA 90723. The listed phone number is (562) 633-5438.

What is J & L De Leon Medical Corporation's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is J & L De Leon Medical Corporation enrolled in Medicare?

Yes. J & L De Leon Medical Corporation is registered in the Medicare PECOS enrollment system.

When is J & L De Leon Medical Corporation's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through J & L De Leon Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Pediatric Medicine) reassigns their Medicare billing to J & L De Leon Medical Corporation. 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.

Does J & L De Leon Medical Corporation hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0553445) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for J & L De Leon Medical Corporation was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.