Quick answers
- Does Megan M. Mastalerz accept Medicare assignment?
- Yes. Medicare's clinician data says Megan M. Mastalerz 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.
- What is Megan M. Mastalerz's NPI number?
- 1093695447. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Megan M. Mastalerz works
Medicare's Facility Affiliation Data lists Megan M. Mastalerz 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.
- Edward HospitalNaperville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140231
Practice locations
Addresses where Megan M. Mastalerz is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1020 E Ogden Ave, Suite 301Naperville, IL 60563 (630) 653‑1091
- 1325 N Meacham RdSchaumburg, IL 60173 (888) 385‑9669
- 1800 N Main StWheaton, IL 60187 (630) 665‑6200
- 2100 Glenwood AveJoliet, IL 60435 (815) 725‑2121
- 220 Springfield Dr, Suite 300Bloomingdale, IL 60108 (630) 469‑9200
Group practices
Medicare enrollment lists Megan M. Mastalerz as a member of this group (CMS data updated October 2, 2026).
- Dupage Medical Group Ltd1,322 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Naperville
Clinicians with the same Medicare primary specialty in Naperville, IL — not a recommendation.
Other clinicians in Dupage Medical Group Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093695447 |
| 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
- 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