Rosalyn M. Aranas, MD

Medicare activity in 2024

Official CMS public-use data for Rosalyn M. Aranas, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)129 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)110 services
3. Needle measurement of electrical activity in arm or leg muscles, complete study (95886)51 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)29 services
5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)28 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%
• Arthritis60%
• Ischemic heart disease40%
• Anxiety38%
• Diabetes32%

Hospitals where Rosalyn M. Aranas works

Medicare's Facility Affiliation Data lists Rosalyn M. Aranas 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.

• Alexian Brothers Medical Center 1Elk Grove Village, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140258
• Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252

Practice locations

Addresses where Rosalyn M. Aranas is enrolled with Medicare (CMS data updated October 2, 2026).

• 155 E Brush Hill RdElmhurst, IL 60126 (331) 221‑0096

Group practices

Medicare enrollment lists Rosalyn M. Aranas as a member of this group (CMS data updated October 2, 2026).

• Endeavor Health Medical Group3,350 clinicians in the group

Specialties

• Neurologyprimary
• Sleep Medicinealso

Find other Neurology doctors in Illinois →

Other neurologists in Elmhurst

Clinicians with the same Medicare primary specialty in Elmhurst, IL — not a recommendation.

• Arkadiy Y. Konyukhov, MD
• Yasaman Adibnia, MD
• Catherine Stachnik, DO
• Yonghua Zhang, MD
• Sana Syed, DO
• Reena A. Ghode, MD
• Nauman Jahangir, MD

All neurologists in Elmhurst →

Other clinicians in Endeavor Health Medical Group

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

• Robert Ander, MD
• Anne P. Sebastian, PA
• Tina S. Marwaha, MD
• Fulvio R. Gil, MD
• Hasan Syed, DO
• Nancy Schindler, 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