Lilit Mnatsakanyan, MD

Medicare activity in 2024

Official CMS public-use data for Lilit Mnatsakanyan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. 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)2,088 services
2. Placement of skin electrodes and measurement of stimulated sites on arms and legs (95938)152 services
3. Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional (95720)126 services
4. Needle measurement of electrical activity in arm or leg muscles, 2 extremities (95861)115 services
5. Placement of skin electrodes and measurement of central motor stimulation in arms and legs (95939)109 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis62%
• Diabetes39%
• Depression34%
• Chronic kidney disease33%

Hospitals where Lilit Mnatsakanyan works

Medicare's Facility Affiliation Data lists Lilit Mnatsakanyan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Lilit Mnatsakanyan is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 the City Dr SOrange, CA 92868 (714) 456‑7004

Group practices

Medicare enrollment lists Lilit Mnatsakanyan as a member of this group (CMS data updated October 2, 2026).

• Regents of the University of Claifornia Univ Neursciences74 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in California →

Other neurologists in Orange

Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.

• Michael Demetriou, MD
• Patrick M. Chen, MD
• David Swope, MD
• Sanaz Attaripour-Isfahani, MD
• Kurt Y. Qing, MD
• Shaida B. Omid, MD
• Seyed A. Sajjadi, MD
• Nicolas M. Phielipp, MD

All neurologists in Orange →

Other clinicians in Regents of the University of Claifornia Univ Neursciences

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Michael Demetriou, MD
• Patrick M. Chen, MD
• David Swope, MD
• Andrew J. Bierman, NP
• Ahmad Riad J. Ramadan, MD
• Shaida B. Omid, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians