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

Illia Kovalev

Sleep Medicine (Internal Medicine) Physician in Sherman Oaks, CA · enumerated 2012 · practices at Master Sleep Inc..

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

National Provider Identifier

1639438435

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Registry record

Entity type Individual (Type 1)

Name Illia Kovalev

Sex Male

Practice address Sherman Oaks, CA, 91403

Phone (818) 849-6755

Enumeration date May 14, 2012

Last updated in NPPES May 14, 2012

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

Taxonomy & licenses

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 0002615765-0001-5 (CA) 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

Where does Illia Kovalev practice?

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

What is the NPI number for Illia Kovalev?

The National Provider Identifier (NPI) for Illia Kovalev is 1639438435, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Master Sleep Inc. Sleep Medicine (Family Medicine) Physician · Sherman Oaks, CA NPI 1215170469

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-14.