NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alan Lee, M.D.

Radiation Oncology Physician in Los Angeles, CA · enumerated 2013.

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

National Provider Identifier

1285072918

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alan Lee
Credential M.D.
Sex Male
Practice address Los Angeles, CA, 90095
Phone (310) 825-0128
Enumeration date Jun 4, 2013
Last updated in NPPES Aug 3, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 256500 (MA) Secondary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License A156335 (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

What is the NPI number for Alan Lee?
The National Provider Identifier (NPI) for Alan Lee is 1285072918, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alan Lee practice?
The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-03.