Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Cardiovascular Disease (Cardiology)

Mark Y. Lee, MD

Works at hospitals in Long Beach, CA · California

Summary

Mark Y. Lee, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 2 hospitals in Long Beach, CA. NPI 1487943510. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mark Y. Lee, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
17Years since medical school (graduated 2009)
University Of Vermont College Of MedicineMedical school
MaleGender (as listed)
Memorial Cardiology Medical Group IncGroup practice

Quick answers

Which hospitals does Mark Y. Lee work at?
Medicare's official clinician data lists Mark Y. Lee at 2 hospitals: Memorialcare Long Beach Medical Center and St Mary Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark Y. Lee see patients?
Medicare's clinician data lists 1 practice location in Long Beach, CA. Call before your visit to confirm the address.
What is Mark Y. Lee's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
Does Mark Y. Lee accept Medicare assignment?
Yes. Medicare's clinician data says Mark Y. Lee accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Mark Y. Lee offer telehealth?
Medicare's clinician data says Mark Y. Lee offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark Y. Lee?
(562) 595-8671, as listed in official Medicare / NPI Registry data.
What is Mark Y. Lee's NPI number?
1487943510. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark Y. Lee works

Medicare's Facility Affiliation Data lists Mark Y. Lee at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mark Y. Lee is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mark Y. Lee as a member of this group (CMS data updated 2026-10-02).

  • Memorial Cardiology Medical Group Inc7 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in Long Beach

Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.

All cardiologists in Long Beach →

Clinician information

CredentialMD
Medical schoolUniversity Of Vermont College Of Medicine
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1487943510
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians