Elayna O. Rubens, MD

Medicare activity in 2024

Official CMS public-use data for Elayna O. Rubens, 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)229 services
2. Measurement of brain wave activity (eeg), in coma or asleep (95822)17 services
3. Measurement of brain wave activity (eeg), 61-119 minutes (95813)15 services
4. Needle measurement of electrical activity in arm or leg muscles, 2 extremities (95861)13 services
5. Placement of skin electrodes and measurement of stimulated sites on arms and legs (95938)13 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%
• Diabetes59%
• Chronic kidney disease49%
• Heart failure46%

Hospitals where Elayna O. Rubens works

Medicare's Facility Affiliation Data lists Elayna O. Rubens 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.

• Montefiore Medical CenterBronx, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330059

Practice locations

Addresses where Elayna O. Rubens is enrolled with Medicare (CMS data updated October 2, 2026).

• 111 E 210th StBronx, NY 10467

Group practices

Medicare enrollment lists Elayna O. Rubens as a member of this group (CMS data updated October 2, 2026).

• Montefiore Medical Center2,820 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in New York →

Other neurologists in Bronx

Clinicians with the same Medicare primary specialty in Bronx, NY — not a recommendation.

• Mallory N. Luckey, MD
• Shaobo Guan, MD
• Sonali Gupta, MD
• Eric J. Mariuma, MD
• Leslie D. Delfiner, MD
• Christine Hung, MD
• Vikas K. Agrawal, MD
• Ewa Koziorynska, MD

All neurologists in Bronx →

Other clinicians in Montefiore Medical Center

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

• Marc F. Shi, MD
• Valerie M. Tarsia, PA
• Demerise D. Marshall
• Kevin S. Grewal, MD
• James H. Bowers, MD
• Othon Wiltz, 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