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Maria Lourdes Castanos De Leon, M.D.

NPI 1285775437ActiveIndividual· General Practice· South Gate, CA

General Practice (M.D.) with Mobile Medical Group Inc. and 1 other group, practicing in South Gate, California. In 2024 Medicare paid $1,078,976 for 2,215 patients, and Part D covered 1,160 of their prescriptions, 81% of them generic. Lilly USA, LLC was the largest of 5 companies reporting payments in 2025, $163.59 in all, mostly food and beverage.

Overview

NPI1285775437
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedFeb 9, 2007
Last updated in NPPESMay 21, 2015

Specialties and licenses

TaxonomyCodeLicenseState
General Practice Primary208D00000XA73468CA
Pediatrics208000000XA73468CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Family Practice (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients2,215
Services billed15,878 across 29 procedure codes
Paid by Medicare$1,078,976

Part D prescriptions in 2024

Prescriptions (claims)1,160 · 1,732 30-day fills
Patients216
Total drug cost$157,791
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Graduation year1986
Medicare specialtyFamily Practice
Secondary specialtiesGeneral Practice, Geriatric Medicine, Internal Medicine, Pediatric Medicine
TelehealthOffers telehealth

Medical groups

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$163.59 · 6 payments from 5 companies
  • 2024$474.55 · 16 payments from 5 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$163.59 · 6 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other general practitioners in South Gate

All 22 general practitioners in South Gate · All general practitioners in California