Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Tsu Chong Lee, M.D.

Orthopaedic Surgery Physician in Hartford, CT · enumerated 2006.

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

National Provider Identifier

1598717779

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Registry record

Entity type Individual (Type 1)

Name Mark Tsu Chong Lee

Credential M.D.

Sex Male

Practice address 282 Washington St, Suite 1h, Department of Orthopaedics, Hartford, CT, 06106

Phone (860) 545-8643

Fax (860) 545-9095

Enumeration date May 16, 2006

Last updated in NPPES Apr 13, 2022

Taxonomy & licenses

207XP3100X Pediatric Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 046855 (CT) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 046855 (CT) 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
050447454	Other	-	CORPORATE FEDERAL ID #

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.

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Frequently asked questions

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.

What specialty is Mark Lee?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-13.