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DESERT SLEEP INSTITUTE
NPI 1790806370
Clinic/Center - Sleep Disorder Diagnostic in La Quinta, CA

Active since April 02, 2007
46100 WASHINGTON ST, LA QUINTA, CA 92253(760) 340-0528(760) 674-1590 Get Directions Write a Review

NPPES record last updated: July 15, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 15, 2020, Dec 9, 2019 (2 updates tracked since 2019).

About Desert Sleep Institute NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DESERT SLEEP INSTITUTE (NPI 1790806370) is a healthcare organization registered as a sleep disorder diagnostic in La Quinta, California and active in the NPI registry since April 2007. The organization lists Antoine Jean Elhajjar, Ceo, as its authorized official.

NPPES Registry Identity

NPI1790806370
Entity TypeOrganization
Primary Taxonomy261QS1200X
Legal Business NameANTOINE J ELHAJJAR M.D., INC.
Location Address46100 WASHINGTON STLa Quinta, CA 92253-2042
Mailing Address46100 Washington StLa Quinta, CA 92253-2042 · (760) 340-0528 · Fax (760) 674-1590
Phone(760) 340-0528
Fax(760) 674-1590
Organization SubpartNo
Authorized OfficialAntoine Jean ElhajjarCeo · (760) 340-0528
Enumeration DateApril 2, 2007
Last NPPES UpdateJuly 15, 20202 updates tracked since enumeration
NPPES CertifiedJuly 15, 2020
✔ NPI 1790806370 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Sleep Disorder DiagnosticAmbulatory Health Care Facilities
Taxonomy Code261QS1200X
License✔ Licensed in CA · A53481
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X
46100 WASHINGTON ST, La Quinta, CA 92253
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Other Names 1

Doing Business AsDesert Sleep Institute

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Desert Sleep Institute is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Desert Sleep Institute, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Antoine Elhajjar, M.D.
Neurology
NPI 1558328203
46100 WASHINGTON ST
La Quinta, CA 92253
(760) 340-0528
✔ PECOS✔ Accepts MedicareSame address
Diana Londono
Neurology
NPI 1801235700
46100 WASHINGTON ST
La Quinta, CA 92253
(760) 340-0528
✔ PECOS✔ Accepts MedicareSame address
Alexander Gevorgyan, M.D.
Neurology
NPI 1346504628
1332 S GLENDALE AVE
Glendale, CA 91205
(818) 649-9232
✔ PECOS✔ Accepts Medicare116 mi
Abdi Morovati, D.O.
Neurology
NPI 1417000563
150 N ROBERTSON BLVD STE 205
Beverly Hills, CA 90211
(310) 657-8585
✔ PECOS✔ Accepts Medicare122 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Antoine J Elhajjar M.D., Inc.'s NPI number?

The NPI number for Antoine J Elhajjar M.D., Inc. is 1790806370. It was assigned to this organization in the NPPES registry on April 2, 2007. The provider is doing business as Desert Sleep Institute.

Where is Antoine J Elhajjar M.D., Inc. located?

Antoine J Elhajjar M.D., Inc. is located at 46100 Washington St, La Quinta, CA 92253. The listed phone number is (760) 340-0528.

What is Antoine J Elhajjar M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Sleep Disorder Diagnostic, with taxonomy code 261QS1200X.

Is Antoine J Elhajjar M.D., Inc. enrolled in Medicare?

Yes. Antoine J Elhajjar M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Antoine J Elhajjar M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Neurology, reassign their Medicare billing to Antoine J Elhajjar M.D., Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Antoine J Elhajjar M.D., Inc. was last updated on July 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.