Nicole M. Leong, MD

Medicare activity in 2024

Official CMS public-use data for Nicole M. Leong, 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 low level od decision making, if using time, 20 minutes or more (99213)36 services
2. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)28 services
3. Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)11 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 cholesterol61%
• Arthritis57%
• High blood pressure56%
• Depression38%
• Diabetes29%
• Anxiety29%

Hospitals where Nicole M. Leong works

Medicare's Facility Affiliation Data lists Nicole M. Leong 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.

• Ingalls Memorial HospitalHarvey, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140191
• The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140088

Practice locations

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

• 14290 S La Grange RdOrland Park, IL 60462
• 5841 S Maryland AveChicago, IL 60637 (773) 702‑1000

Group practices

Medicare enrollment lists Nicole M. Leong as a member of these groups (CMS data updated October 2, 2026).

• University of Chicago1,712 clinicians in the group
• The University of Chicago Medical Center915 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Orland Park

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

• Deborah A. Boyle, MD
• Lucero Diaz, MD
• Jennifer Chang, MD
• Lisa L. Johnson, MD
• Sam F. Flosi, MD
• Whitney Sigala, MD
• Jack A. Doah, MD
• Alexander Lin, MD

All OB-GYNs in Orland Park →

Other clinicians in University of Chicago

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

• Rita L. McGill, MD
• Sawsan Shimi, CNA
• Khalid I. Afzal, MD
• Jennifer M. Bassler, NP
• Bernhard J. Ortel, MD
• Georgina G. Lopez

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