Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Y Lee, MD

Q: What is the NPI number for Mark Lee?

The National Provider Identifier (NPI) for Mark Lee is 1487943510, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Cardiac Electrophysiology Physician in Long Beach, CA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1487943510

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Y Lee

Credential MD

Sex Male

Practice address 2898 Linden Ave, Long Beach, CA, 90806

Phone (562) 595-8671

Fax (562) 490-2015

Enumeration date Mar 29, 2011

Last updated in NPPES Dec 1, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A116281 (CA) Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 116281 (CA) Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 116281 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mark Lee?

The National Provider Identifier (NPI) for Mark Lee is 1487943510, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Lee practice?

The practice location on file with NPPES is in Long Beach, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-01.