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DR. DHIRAJ JEYANANDARAJAN M.D.
NPI 1154547719
Psychiatry & Neurology - Neurology in Irvine, CA

Active since April 18, 2007PECOS EnrolledAccepts Medicare Assignment
7545 IRVINE CENTER DR, 200, IRVINE, CA 92618(805) 928-1731(805) 349-8160 Get Directions Write a Review

NPPES record last updated: October 13, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Dhiraj Jeyanandarajan M.d. NPPES

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

DR. DHIRAJ JEYANANDARAJAN M.D. (NPI 1154547719) is an individual neurology provider in Irvine, California, licensed in California (A91259) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2003).

NPPES Registry Identity

NPI1154547719
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. DHIRAJ JEYANANDARAJANCredential: M.D.
Location Address7545 IRVINE CENTER DR, 200Irvine, CA 92618-2932
Mailing Address11121 Sun Center Dr, Ste GRancho Cordova, CA 95670-6199 · (916) 631-0112 · Fax (916) 631-1652
Phone(805) 928-1731
Fax(805) 349-8160
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2003
Enumeration DateApril 18, 2007
Last NPPES UpdateOctober 13, 2016
✔ NPI 1154547719 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in CA · A91259✔ Licensed in CT · 45960
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.
7545 IRVINE CENTER DR, Irvine, CA 92618
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Other Identifiers 4

Medicare PINAT228YCA
Medicare PINAT228XCA
Other00A912590CA · Blue Cross Blue Shield
Medicare PINAT228ZCA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Dhiraj Jeyanandarajan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486716388
PECOS Enrollment IDI20081231000524, I20110328000870
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Dhiraj Jeyanandarajan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of Claifornia Univ Neursciences
12 mi
Neurology
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 135 clinicians in this Medicare group
NPI 1205884210 (714) 456-8068
Monitoring Associates LLC
221 mi
Electrodiagnostic Medicine
9811 W CHARLESTON BLVD STE 2-641
Las Vegas, NV 89117
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
NPI 1174916522 (855) 864-4322
Quantum Neuromonitoring Corporation
393 mi
Neurology
11121 SUN CENTER DR, SUITE G
Rancho Cordova, CA 95670
  • Reassigned Medicare billing, California and Oregon enrollments
  • 2 clinicians in this Medicare group
NPI 1790083723 (916) 631-0112
Neuromonitoring Services Of America, Inc
814 mi
Neurology
2 N NEVADA AVE STE 1000
Colorado Springs, CO 80903
  • Reassigned Medicare billing, California and Georgia enrollments
  • 16 clinicians in this Medicare group
NPI 1134307531 (866) 226-8576

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

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure) G0453
Continuous intraoperative neurophysiology monitoring is a service where a specialist oversees your nervous system's function during surgery, from a nearby or remote location. This is done every 15 minutes and is focused solely on you. It helps ensure surgical safety by identifying any potential nervous system changes promptly.
7,401 services752 patients
Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study 95870
This procedure, known as an electromyography (EMG), involves using a needle to measure electrical activity in your muscles. It can help diagnose conditions affecting nerves or muscles. It's a limited study, meaning only specific muscles in the arm, leg, trunk, or head are examined.
995 services465 patients
Placement of skin electrodes and measurement of stimulated sites on arms and legs 95938
This procedure involves placing small pads (electrodes) on your arms and legs. These electrodes send gentle electric signals to specific areas, and the responses are measured. This helps assess the health of your nerves and muscles.
855 services789 patients
Measurement of brain wave activity (eeg) outside the brain during surgery 95955
An EEG (Electroencephalogram) during surgery monitors brain activity. Electrodes on the scalp record brain wave patterns, helping doctors ensure the brain is functioning normally throughout the procedure.
558 services518 patients
Placement of skin electrodes and measurement of central motor stimulation in arms and legs 95939
This procedure involves placing small patches (electrodes) on your skin over your arms and legs. These electrodes send harmless electrical signals to your muscles. The response is measured to assess the health and function of your nerves and muscles.
306 services297 patients
Needle measurement of electrical activity in arm or leg muscles, 2 extremities 95861
This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. It helps diagnose conditions affecting nerves or muscles. It's generally painless, though you may feel some discomfort.
222 services210 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AHI GROUP, INC
In Home Supportive Care
7545 IRVINE CENTER DR, SUITE 200
IRVINE, CA 92618
Orange County (949) 440-1025
DR. JONATHAN RICH PH.D.
Psychologist
7545 IRVINE CENTER DR, SUITE 200
IRVINE, CA 92618
Orange County (949) 623-9824
LAUREN ASHLEY ADAIR
Behavior Technician
7545 IRVINE CENTER DR
IRVINE, CA 92618
Orange County (714) 254-5401
QUANTUM NEUROSCIENCES CORPORATION
Psychiatry & Neurology (Neurology)
7545 IRVINE CENTER DR, SUITE 200
IRVINE, CA 92618
Orange County (805) 928-1731
MR. MIKE CHI PHU
Behavior Technician
7545 IRVINE CENTER DR
IRVINE, CA 92618
Orange County (949) 623-8367
SR HOMECARE OF CALIFORNIA
Home Health
7545 IRVINE CENTER DR
IRVINE, CA 92618
Orange County (718) 338-6300
JU YOON BA
Behavior Analyst
7545 IRVINE CENTER DR
IRVINE, CA 92618
Orange County (949) 214-8976
JESSICA PAOLA CARINO
Technician, Other
7545 IRVINE CENTER DR
IRVINE, CA 92618
Orange County (949) 214-8976

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 Dhiraj Jeyanandarajan's NPI number?

The NPI number for Dhiraj Jeyanandarajan is 1154547719. It was assigned to this individual provider in the NPPES registry on April 18, 2007.

Where is Dhiraj Jeyanandarajan located?

Dhiraj Jeyanandarajan practices at 7545 Irvine Center Dr 200, Irvine, CA 92618. The listed phone number is (805) 928-1731.

What is Dhiraj Jeyanandarajan's specialty?

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

Is Dhiraj Jeyanandarajan enrolled in Medicare?

Yes. Dhiraj Jeyanandarajan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Dhiraj Jeyanandarajan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dhiraj Jeyanandarajan reassigns Medicare benefits to 4 organizations: Regents Of The University Of Claifornia Univ Neursciences (Orange, CA), Monitoring Associates LLC (Las Vegas, NV), Quantum Neuromonitoring Corporation (Rancho Cordova, CA) and Neuromonitoring Services Of America, Inc (Colorado Springs, CO). Each 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 Dhiraj Jeyanandarajan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dhiraj Jeyanandarajan accept?

Health plans from CareSource list Dhiraj Jeyanandarajan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Dhiraj Jeyanandarajan was last updated on October 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.