Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hospital for Special Surgery

Q: What is the NPI number for Hospital for Special Surgery?

The NPI for Hospital for Special Surgery is 1235392606, a Type 2 (organization) record in the CMS NPPES registry.

Special Hospital in New York, NY · enumerated 2008 · authorized official Reza Zarnegar, Neuromuscular Fellow.

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

National Provider Identifier

1235392606

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Registry record

Entity type Organization (Type 2)

Legal business name Hospital for Special Surgery

Practice address 270 W 17th St Apt 11b, New York, NY, 10011

Phone (516) 551-0264

Enumeration date Jul 7, 2008

Last updated in NPPES Jul 7, 2008

Taxonomy & classification

284300000X Special Hospital Hospitals · License 239736 (NY) Primary

Authorized official

Name Reza Zarnegar

Title Neuromuscular Fellow

Phone (212) 606-2900

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 Hospital for Special Surgery?

The NPI for Hospital for Special Surgery is 1235392606, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Hospital for Special Surgery?

NPPES lists Reza Zarnegar (Neuromuscular Fellow) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-07.