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

Derek Fein, PTA

Q: What is the NPI number for Derek Fein?

The National Provider Identifier (NPI) for Derek Fein is 1609339795, a Type 1 (individual) record in the CMS NPPES registry.

Physical Therapy Assistant in Lake Ronkonkoma, NY · enumerated 2019.

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

National Provider Identifier

1609339795

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Registry record

Entity type Individual (Type 1)

Name Derek Fein

Credential PTA

Sex Male

Practice address Lake Ronkonkoma, NY, 11779

Phone (631) 294-8663

Enumeration date Apr 7, 2019

Last updated in NPPES Apr 7, 2019

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

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 010454 (NY) 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

Where does Derek Fein practice?

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

What is the NPI number for Derek Fein?

The National Provider Identifier (NPI) for Derek Fein is 1609339795, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-07.