Quick answers
- Does Mary Louise Mattas accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Louise Mattas 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 Mary Louise Mattas see?
- In 2024, CMS data shows 25 Original Medicare patients and 63 services for Mary Louise Mattas. This counts Original Medicare only and measures volume, not quality.
- What is Mary Louise Mattas's NPI number?
- 1346610813. 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 Mary Louise Mattas, 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 | 25 |
|---|---|
| Services billed to Medicare | 63 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
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 blood pressure75%
- High cholesterol75%
- Arthritis75%
- COPD48%
- Ischemic heart disease44%
- Anxiety44%
Hospitals where Mary Louise Mattas works
Medicare's Facility Affiliation Data lists Mary Louise Mattas 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.
- HCA Florida Lawnwood HospitalFort Pierce, FL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 100246
- St Lucie Medical CenterPort Saint Lucie, FL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 100260
Practice locations
Addresses where Mary Louise Mattas is enrolled with Medicare (CMS data updated October 2, 2026).
- 2401 Frist Blvd, Suite 4Fort Pierce, FL 34950 (772) 595‑5302
Group practices
Medicare enrollment lists Mary Louise Mattas as a member of this group (CMS data updated October 2, 2026).
- Palm Beach General Surgery LLC69 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Fort Pierce
Clinicians with the same Medicare primary specialty in Fort Pierce, FL — not a recommendation.
Other clinicians in Palm Beach General Surgery LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2015 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346610813 |
| 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