Quick answers
- Does Matthew R. Kelleher accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew R. Kelleher 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 Matthew R. Kelleher see?
- In 2024, CMS data shows 771 Original Medicare patients and 2,359 services for Matthew R. Kelleher. This counts Original Medicare only and measures volume, not quality.
- What is Matthew R. Kelleher's NPI number?
- 1225022882. 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 Matthew R. Kelleher, 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 | 771 |
|---|---|
| Services billed to Medicare | 2,359 |
| Different services or procedures | 75 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)552 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)481 services
- Destruction of precancer skin growth, 1 growth (17000)240 services
- Biopsy of related skin growth, first growth (11102)130 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)114 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 pressure66%
- Arthritis44%
- Ischemic heart disease27%
- Diabetes24%
- Anxiety22%
Practice locations
Addresses where Matthew R. Kelleher is enrolled with Medicare (CMS data updated October 2, 2026).
- 1600 W US Route 6Morris, IL 60450 (815) 941‑9500
- 2051 Plainfield RdCrest Hill, IL 60403 (815) 741‑4343
Group practices
Medicare enrollment lists Matthew R. Kelleher as a member of this group (CMS data updated October 2, 2026).
- Forefront Dermatology SC662 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Morris
Clinicians with the same Medicare primary specialty in Morris, IL — not a recommendation.
Other clinicians in Forefront Dermatology SC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225022882 |
| 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