DHIRAJ RAJ JEYANANDARAJAN
NPI 1790083723
Psychiatry & Neurology - Neurology in Rancho Cordova, CA

Active since February 28, 2011
11121 SUN CENTER DR, SUITE G, RANCHO CORDOVA, CA 95670(916) 631-0112(916) 631-1652 Get Directions Write a Review

NPPES record last updated: February 28, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dhiraj Raj Jeyanandarajan NPPES

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

DHIRAJ RAJ JEYANANDARAJAN (NPI 1790083723) is a healthcare organization registered as a neurology in Rancho Cordova, California and active in the NPI registry since February 2011. The organization lists Dhiraj Raj Jeyanandarajan, President, as its authorized official.

NPPES Registry Identity

NPI1790083723
Entity TypeOrganization
Primary Taxonomy2084N0400X
Legal Business NameQUANTUM NEUROMONITORING CORPORATION
Location Address11121 SUN CENTER DR, SUITE GRancho Cordova, CA 95670-6161
Mailing Address11121 Sun Center Dr, Suite GRancho Cordova, CA 95670-6161 · (916) 631-0112 · Fax (916) 631-1652
Fax(916) 631-1652
Organization SubpartNo
Authorized OfficialDhiraj Raj JeyanandarajanPresident · (916) 631-0112
Enumeration DateFebruary 28, 2011
✔ NPI 1790083723 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · A91259
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
11121 SUN CENTER DR, Rancho Cordova, CA 95670

Other Names 1

Other NameDhiraj Raj Jeyanandarajan

Other Identifiers 1

Other1154547719CA · Npi

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dhiraj Raj Jeyanandarajan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20110414000340Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Dhiraj Raj Jeyanandarajan, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Neurology
NPI 1598061624
2487 GLENDOWER AVE
Los Angeles, CA 90027
(323) 660-7768
✔ PECOS✔ Accepts Medicare351 mi
Neurology
NPI 1154547719
7545 IRVINE CENTER DR 200
Irvine, CA 92618
(805) 928-1731
✔ PECOS✔ Accepts Medicare393 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 Quantum Neuromonitoring Corporation's NPI number?

The NPI number for Quantum Neuromonitoring Corporation is 1790083723. It was assigned to this organization in the NPPES registry on February 28, 2011. The provider is also known as Dhiraj Raj Jeyanandarajan.

Where is Quantum Neuromonitoring Corporation located?

Quantum Neuromonitoring Corporation is located at 11121 Sun Center Dr Suite G, Rancho Cordova, CA 95670. The listed phone number is (916) 631-0112.

What is Quantum Neuromonitoring Corporation's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Quantum Neuromonitoring Corporation enrolled in Medicare?

Yes. Quantum Neuromonitoring Corporation is registered in the Medicare PECOS enrollment system.

When is Quantum Neuromonitoring Corporation's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Quantum Neuromonitoring Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Neurology, reassign their Medicare billing to Quantum Neuromonitoring Corporation. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Quantum Neuromonitoring Corporation was last updated on February 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.