Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Prof. Igor E. Konstantinov, MD, PHD, FRACS

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Rochester, MN · enumerated 2025.

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

National Provider Identifier

1942009683

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Registry record

Entity type Individual (Type 1)

Name Prof. Igor E. Konstantinov

Credential MD, PHD, FRACS

Sex Male

Practice address 200 1st St Sw, Rochester, MN, 55905

Phone (507) 284-2511

Enumeration date Mar 13, 2025

Last updated in NPPES May 26, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License ME172640 (FL) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 1036 (MN) 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.

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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 Igor Konstantinov?

Igor Konstantinov is registered in NPPES with the primary taxonomy of Thoracic Surgery (Cardiothoracic Vascular 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 2026-05-26.