Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tun Sein Lee, M.D.

Q: What is the NPI number for Tun Lee?

The National Provider Identifier (NPI) for Tun Lee is 1518983519, a Type 1 (individual) record in the CMS NPPES registry.

Obstetrics & Gynecology Physician in Pleasanton, CA · enumerated 2006.

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

National Provider Identifier

1518983519

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Registry record

Entity type Individual (Type 1)

Name Dr. Tun Sein Lee

Credential M.D.

Sex Male

Practice address 5565 W. Las Positas Blvd, Suite 200, Pleasanton, CA, 94588

Phone (925) 416-6846

Fax (925) 416-6847

Enumeration date Jul 14, 2006

Last updated in NPPES Dec 5, 2011

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License A36424 (CA) Primary

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

Where does Tun Lee practice?

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

What is the NPI number for Tun Lee?

The National Provider Identifier (NPI) for Tun Lee is 1518983519, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-05.