Quick answers
- Does Tony S. Fu accept Medicare assignment?
- Yes. Medicare's clinician data says Tony S. Fu 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 Tony S. Fu see?
- In 2024, CMS data shows 526 Original Medicare patients and 2,027 services for Tony S. Fu. This counts Original Medicare only and measures volume, not quality.
- What is Tony S. Fu's NPI number?
- 1043383524. 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 Tony S. Fu, 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 | 526 |
|---|---|
| Services billed to Medicare | 2,027 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)1,049 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)548 services
- Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm (11622)83 services
- Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 2.1-3.0 cm (11643)65 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)61 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 cholesterol75%
- High blood pressure72%
- Arthritis46%
- Ischemic heart disease28%
- Diabetes22%
- Chronic kidney disease22%
Practice locations
Addresses where Tony S. Fu is enrolled with Medicare (CMS data updated October 2, 2026).
- 120 Batson Ct, Suite 201New Lenox, IL 60451 (815) 717‑8606
- 6315 Northwest Hwy, Suite BCrystal Lake, IL 60014 (815) 459‑4333
- 636 Church St, Suite 308Evanston, IL 60201 (847) 328‑3913
Group practices
Medicare enrollment lists Tony S. Fu as a member of this group (CMS data updated October 2, 2026).
- Renuka H Bhatt MDSC7 clinicians in the group
Specialties
- Dermatologyprimary
- Pathologyalso
Other dermatologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in Renuka H Bhatt MDSC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1969 (57 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043383524 |
| 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
- 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