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

Mr. Mark Samonsky, MS, ATC

Sports Medicine (Emergency Medicine) Physician in Hilo, HI · enumerated 2020.

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

National Provider Identifier

1114523834

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Samonsky

Credential MS, ATC

Sex Male

Practice address Hilo, HI, 96720

Phone (808) 313-5500

Enumeration date Dec 8, 2020

Last updated in NPPES Dec 8, 2020

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

Taxonomy & licenses

207PS0010X Sports Medicine (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 2000002024 (HI) 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 is the NPI number for Mark Samonsky?

The National Provider Identifier (NPI) for Mark Samonsky is 1114523834, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Samonsky practice?

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

Other providers at this practice address

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Amy Shirk Athletic Trainer · Hilo, HI NPI 1427191402 Mikala Womack Speech-Language Pathologist · Hilo, HI NPI 1295696847

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-08.