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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Masaaki Tsuruike, PHD, ATC

Sports Medicine (Preventive Medicine) Physician in San Jose, CA · enumerated 2018.

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

National Provider Identifier

1306313085

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Registry record

Entity type Individual (Type 1)
Name Dr. Masaaki Tsuruike
Credential PHD, ATC
Sex Male
Practice address San Jose, CA, 95192
Enumeration date Oct 31, 2018
Last updated in NPPES Apr 30, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2083S0010X Sports Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 029502557 (TX) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 NPI 1306313085 active?
Yes, as of the latest NPPES snapshot, NPI 1306313085 is active (record last updated 2024-04-30).
How do I verify Masaaki Tsuruike's NPI record?
Cross-check NPI 1306313085 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-30.