Quick answers
- Does Dayna R. Mazza accept Medicare assignment?
- Yes. Medicare's clinician data says Dayna R. Mazza 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 Dayna R. Mazza see?
- In 2024, CMS data shows 11 Original Medicare patients and 105 services for Dayna R. Mazza. This counts Original Medicare only and measures volume, not quality.
- What is Dayna R. Mazza's NPI number?
- 1104358449. 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 Dayna R. Mazza, 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 | 11 |
|---|---|
| Services billed to Medicare | 105 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
Hospitals where Dayna R. Mazza works
Medicare's Facility Affiliation Data lists Dayna R. Mazza 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.
- Children's Hospital of PhiladelphiaPhiladelphia, PA · Children's Hospital · Emergency services: listed by Medicare · CCN 393303
Practice locations
Addresses where Dayna R. Mazza is enrolled with Medicare (CMS data updated October 2, 2026).
- 3401 Civic Ctr BlvdPhiladelphia, PA 19104 (215) 590‑1000
Group practices
Medicare enrollment lists Dayna R. Mazza as a member of this group (CMS data updated October 2, 2026).
- Childrens Health Care Associates Inc220 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Philadelphia
Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.
Other clinicians in Childrens Health Care Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104358449 |
| 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
- 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