Skip to content

John Sungwon Lee, MD

NPI 1497041883ActiveIndividual· Internal Medicine, Sleep Medicine· Los Angeles, CA

Internal Medicine, Sleep Medicine (MD) in Los Angeles, California, trained at Loma Linda University School of Medicine (class of 2010). 107 Medicare patients in 2024, $17,592 paid; nearly all of their 425 Part D prescriptions were generic (92%).

Overview

NPI1497041883
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 23, 2011
Last updated in NPPESAug 28, 2025
Certified by providerAug 28, 2025

Specialties and licenses

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 - Internal Medicine (AZ); Practitioner - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients107
Services billed181 across 9 procedure codes
Paid by Medicare$17,592

Part D prescriptions in 2024

Prescriptions (claims)425 · 441 30-day fills
Patients250
Total drug cost$14,086
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLoma Linda University School of Medicine
Graduation year2010
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other Internal Medicine, Sleep Medicine providers in Los Angeles

All 17 Internal Medicine, Sleep Medicine providers in Los Angeles · All Internal Medicine, Sleep Medicine providers in California