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

Efraym Mastov, DME

Durable Medical Equipment & Medical Supplies in Richmond Hill, NY · enumerated 2017 · practices at Myrtle Dme Nyc Inc.

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

National Provider Identifier

1558876508

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Registry record

Entity type Individual (Type 1)

Name Efraym Mastov

Credential DME

Sex Male

Practice address Richmond Hill, NY, 11418

Phone (347) 514-9118

Fax (347) 514-9119

Enumeration date Dec 12, 2017

Last updated in NPPES Jan 7, 2018

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

Taxonomy & licenses

332B00000X Durable Medical Equipment & Medical Supplies Suppliers 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.

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Frequently asked questions

How do I verify Efraym Mastov's NPI record?

Cross-check NPI 1558876508 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558876508 active?

Yes, as of the latest NPPES snapshot, NPI 1558876508 is active (record last updated 2018-01-07).

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Myrtle Dme Nyc Inc Durable Medical Equipment & Medical Supplies · Richmond Hill, NY NPI 1184131575

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-07.