John K. Lee, M.D., Inc.

John K. Lee, M.D., Inc. is a healthcare organization registered as Geriatric Medicine (Internal Medicine) Physician in Fullerton, CA, holding Type 2 (organization) NPI 1619028131 since 2007. The authorized official on file is John Lee, President.

✓ Active NPI ✓ Valid NPI checksum

NPI	1619028131
Entity type	Organization (Type 2)
Legal business name	John K. Lee, M.D., Inc.
Practice address	400 N EUCLID ST, Fullerton, CA, 92832
Phone	7148798700
Fax	7148791700
Enumeration date	2007-01-12
Last updated in NPPES	2020-08-22

Authorized official

Name	John Lee
Title	President
Phone	7148798700

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207RG0300X	Geriatric Medicine (Internal Medicine) Physician	Primary	—	—

Copy-ready billing details

Provider: John K. Lee, M.D., Inc.
NPI: 1619028131
Taxonomy: 207RG0300X (Geriatric Medicine (Internal Medicine) Physician)
Address: 400 N EUCLID ST, Fullerton, CA, 92832

Verify this record

Cross-check NPI 1619028131 against the authoritative CMS record: view John K. Lee, M.D., Inc. on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is John K. Lee, M.D., Inc. located?

The practice location on file with NPPES is in Fullerton, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.