John Sungwon Lee, MD

Sleep Medicine Internal Medicine

Internal Medicine

John Sungwon Lee is a Sleep Medicine Internal Medicine specialist based in Los Angeles, CA with over 16 years of clinical experience. Offers virtual telehealth visits.

(213) 908-7707Los Angeles, CA
Telehealth Available
NPI Active per CMS — Q2 2026

John Sungwon Lee, MD has been part of the Los Angeles medical community since 2011 in group practice. Trained at Loma Linda University School of Medicine (class of 2010), he has been practicing for over 16 years. CMS Medicare data shows his patients commonly have hypertension, diabetes, and high cholesterol.

1 of 78 Internal Medicine providers in CASee all Internal Medicine in Los Angeles16+ years experienceNPI since 2011

Older · 272dNPPES updated 2025-08-28 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

500 S Virgil Ave Ste 202, Los Angeles, CA 90020-1448

Fax: (414) 296-8769
Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, Diabetes, and High Cholesterol.

Hypertension
75%

High blood pressure — a leading risk factor for heart disease and stroke

Diabetes
70%

A condition where the body cannot properly regulate blood sugar levels

High Cholesterol
70%

Elevated cholesterol or triglycerides that increase heart disease risk

Heart Failure
58%

The heart cannot pump blood efficiently enough to meet the body's needs

Chronic Kidney Disease
49%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

Ischemic Heart Disease
49%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Arthritis
47%

Joint inflammation causing pain, swelling, and stiffness

COPD
35%

Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2010

    Loma Linda University School of Medicine

  2. Board certified · Aug 27, 2025

    Self-reported via NPPES

  3. 16 years in practice

    Experienced

Internal MedicineSleep Medicine in Los AngelesAllopathic & Osteopathic Physicians

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Taxonomy: 207RS0012X

Education & Training

Loma Linda University School of Medicine (Class of 2010)

Virtual Sleep Medicine Care With John Sungwon Lee

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with John Sungwon Lee for blood pressure monitoring, diabetes check-ins, cholesterol management — no travel to Los Angeles required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about John Sungwon Lee

Dr. Lee is listed as active in the NPI registry with telehealth listed in Los Angeles, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (213) 908-7707.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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