Quick answers
- Does Charles C. Assell Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Charles C. Assell Iii 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 Charles C. Assell Iii see?
- In 2024, CMS data shows 194 Original Medicare patients and 1,322 services for Charles C. Assell Iii. This counts Original Medicare only and measures volume, not quality.
- What is Charles C. Assell Iii's NPI number?
- 1962574137. 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 Charles C. Assell Iii, 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 | 194 |
|---|---|
| Services billed to Medicare | 1,322 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)175 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)64 services
- Imaging of optic nerve (92133)33 services
- Imaging of retina (92134)32 services
- Exam of visual field with extended testing (92083)13 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 pressure63%
- Arthritis41%
- Ischemic heart disease22%
- Diabetes19%
- Osteoporosis19%
Practice locations
Addresses where Charles C. Assell Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 1115 N Roselle RdHoffman Estates, IL 60169 (847) 885‑2030
- 2441 W Schaumburg RdSchaumburg, IL 60194 (847) 301‑2727
Group practices
Medicare enrollment lists Charles C. Assell Iii as a member of this group (CMS data updated October 2, 2026).
- DRS. Aide and Assell Optometrists, P.C.5 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Hoffman Estates
Clinicians with the same Medicare primary specialty in Hoffman Estates, IL — not a recommendation.
Other clinicians in DRS. Aide and Assell Optometrists, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Illinois College Of Optometry At Chicago |
| Graduation year | 2004 (22 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962574137 |
| 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