Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John J Lee, MD

Ophthalmology Physician in Brookline, MA · enumerated 2007.

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

National Provider Identifier

1124237326

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Registry record

Entity type Individual (Type 1)

Name John J Lee

Credential MD

Sex Male

Practice address 24 Webster Pl, Brookline, MA, 02445

Phone (617) 202-2020

Fax (617) 734-3264

Enumeration date May 22, 2007

Last updated in NPPES Jul 8, 2025

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 232684 (MA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
0001484	Other	MA	MEDICARE
J42583	Other	MA	BLUE CROSS BLUE SHIELD
2142732	Medicaid	MA	-
AA99101	Other	MA	HARVARD PILGRIM

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 specialty is John Lee?

John Lee is registered in NPPES with the primary taxonomy of Ophthalmology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-08.