Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peter Tsairis, M.D.

Specialist in Morristown, NJ · enumerated 2007 · practices at Mssm-Fpa-Department of Orthopaedic Surgery.

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

National Provider Identifier

1811034606

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Registry record

Entity type Individual (Type 1)

Name Peter Tsairis

Credential M.D.

Sex Male

Practice address 160 E Hanover Ave, Morristown, NJ, 07960

Phone (973) 538-2334

Fax (973) 539-9610

Enumeration date Jan 31, 2007

Last updated in NPPES Jan 18, 2008

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 25MA04844300 (NJ) 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 Peter Tsairis?

The National Provider Identifier (NPI) for Peter Tsairis is 1811034606, a Type 1 (individual) record in the CMS NPPES registry.

Where does Peter Tsairis practice?

The practice location on file with NPPES is in Morristown, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-18.