Quick answers
- Does Denise M. Keenan accept Medicare assignment?
- Yes. Medicare's clinician data says Denise M. Keenan 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 Denise M. Keenan see?
- In 2024, CMS data shows 204 Original Medicare patients and 275 services for Denise M. Keenan. This counts Original Medicare only and measures volume, not quality.
- What is Denise M. Keenan's NPI number?
- 1548680648. 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 Denise M. Keenan, 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 | 204 |
|---|---|
| Services billed to Medicare | 275 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Comprehensive hearing and speech recognition test (92557)206 services
- Test to assess middle ear function (92567)64 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 pressure71%
- Arthritis52%
- Diabetes25%
- Ischemic heart disease25%
- Atrial fibrillation19%
Practice locations
Addresses where Denise M. Keenan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1100 W Central Rd, Suite 409Arlington Heights, IL 60005 (847) 392‑2250
Group practices
Medicare enrollment lists Denise M. Keenan as a member of this group (CMS data updated October 2, 2026).
- Northwest Speech and Hearing Center Ltd8 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Arlington Heights
Clinicians with the same Medicare primary specialty in Arlington Heights, IL — not a recommendation.
Other clinicians in Northwest Speech and Hearing Center Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 1991 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548680648 |
| 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