Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Maciej J Kieturakis

Surgery Physician in Mountain View, CA · enumerated 2006.

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

National Provider Identifier

1134210008

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Registry record

Entity type Individual (Type 1)

Name Dr. Maciej J Kieturakis

Sex Male

Practice address 305 South Dr, #7, Mountain View, CA, 94040

Phone (650) 938-6600

Fax (650) 938-6601

Enumeration date Sep 27, 2006

Last updated in NPPES Apr 26, 2013

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A40880 (CA) Primary

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 Maciej Kieturakis?

Maciej Kieturakis is registered in NPPES with the primary taxonomy of Surgery 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 2013-04-26.