Arlene S. Uy, MD

Medicare activity in 2024

Official CMS public-use data for Arlene S. Uy, 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. Injection, denosumab, 1 mg (J0897)4,920 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)327 services
3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)116 services
4. Injection of drug or substance under skin or into muscle (96372)107 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)89 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 cholesterol70%
• Osteoporosis65%
• High blood pressure58%
• Arthritis42%
• Diabetes27%
• Anxiety21%

Hospitals where Arlene S. Uy works

Medicare's Facility Affiliation Data lists Arlene S. Uy 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.

• Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
• Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
• Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281
• Palos Community HospitalPalos Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140062

Practice locations

Addresses where Arlene S. Uy is enrolled with Medicare (CMS data updated October 2, 2026).

• 259 E Erie St, Suite 2200Chicago, IL 60611 (312) 926‑6000

Group practices

Medicare enrollment lists Arlene S. Uy as a member of this group (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in Illinois →

Other endocrinologists in Chicago

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

• David S. Oyer, MD
• David H. Sarne, MD
• Grazia M. Aleppo, MD
• Matthew D. Ettleson, MD
• Daniel J. Toft, MD
• Apoorva Aekka, MD
• Emily D. Smith, MD
• Brian T. Layden, MD

All endocrinologists in Chicago →

Other clinicians in Northwestern Medical Faculty Foundation

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

• Sarah C. Young, MD
• Krithika Malhotra
• Manasi S. Singh, MD
• Wendy Piekarz
• Peter J. Boxley, MD
• Karen J. Ho, 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