Quick answers
- Does Fah S. Leong accept Medicare assignment?
- Yes. Medicare's clinician data says Fah S. Leong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Fah S. Leong see?
- In 2024, CMS data shows 759 Original Medicare patients and 1,125 services for Fah S. Leong. This counts Original Medicare only and measures volume, not quality.
- What is Fah S. Leong's NPI number?
- 1184685299. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Fah S. 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.
| Original Medicare patients | 759 |
|---|---|
| Services billed to Medicare | 1,125 |
| Different services or procedures | 99 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ct scan head or brain without contrast (70450)182 services
- X-ray of chest, 1 view (71045)145 services
- Ct scan of upper spine without contrast (72125)52 services
- Ct scan of abdomen and pelvis with contrast (74177)50 services
- Ct scan of abdomen and pelvis without contrast (74176)48 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%
- Diabetes58%
- Arthritis55%
- Ischemic heart disease50%
- Chronic kidney disease50%
Hospitals where Fah S. Leong works
Medicare's Facility Affiliation Data lists Fah S. 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.
- Alexian Brothers Medical Center 1Elk Grove Village, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140258
- Bayhealth Medical Center, Kent CampusDover, DE · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 080004
- Christiana HospitalNewark, DE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 080001
- Riverside University Health System-Medical CenterMoreno Valley, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050292
- University Medical CenterLubbock, TX · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 450686
Practice locations
Addresses where Fah S. Leong is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 20; the Medicare profile lists all.
- 1044 N Francisco AveChicago, IL 60622 · Humboldt Park Health (773) 292‑8227
- 11011 Slide RdLubbock, TX 79424 · Lubbock County Hospital District (806) 775‑8200
- 1215 E Michigan Ave, Unitversity of Michigan Health SparLansing, MI 48912 (517) 364‑5650
- 1339 W Lake StAddison, IL 60101 · Bonaventure Medical Foundation LLC (847) 981‑5767
- 1545 Atlantic AveBrooklyn, NY 11213 (718) 613‑4000
Group practices
Medicare enrollment lists Fah S. Leong as a member of these groups (CMS data updated October 2, 2026).
- Christiana Care Health Services Inc1,483 clinicians in the group
- Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group
- Mercy Health System Corporation753 clinicians in the group
- Edward W Sparrow Hospital Association730 clinicians in the group
- Rockford Health Physicians521 clinicians in the group
- Interfaith Professional Physician Services PC384 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Christiana Care Health Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184685299 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians