Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven Borenstein, R.PH.

Pharmacist in Lahaina, HI · enumerated 2007.

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

National Provider Identifier

1851443121

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Registry record

Entity type Individual (Type 1)

Name Steven Borenstein

Credential R.PH.

Sex Male

Practice address 910 Wainee St, Lahaina, HI, 96761

Phone (808) 662-6945

Enumeration date Jan 17, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PH-1286 (HI) Primary

183500000X Pharmacist Pharmacy Service Providers · License 30075 (TX) Secondary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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

Is NPI 1851443121 active?

Yes, as of the latest NPPES snapshot, NPI 1851443121 is active (record last updated 2007-07-08).

How do I verify Steven Borenstein's NPI record?

Cross-check NPI 1851443121 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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Julie Tudor Medical Physician Assistant · Lahaina, HI NPI 1740242940 Kaiser Foundation Health Plan Inc Clinical Medical Laboratory · Lahaina, HI NPI 1922013309 Kaiser Foundation Health Plan Radiology Clinic/Center · Lahaina, HI NPI 1508960634 Galen Wiger Family Medicine Physician · Lahaina, HI NPI 1699874172 Darcel Gilbert Family Medicine Physician · Lahaina, HI NPI 1740380518 Lise Stevens Pediatrics Physician · Lahaina, HI NPI 1386727170 Kimmie Ouchi Family Medicine Physician · Lahaina, HI NPI 1780748582 Donna Ibuyan Pharmacist · Lahaina, HI NPI 1770635906

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.