Quick answers
- Does Anthony J. Mattiello accept Medicare assignment?
- Yes. Medicare's clinician data says Anthony J. Mattiello 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 Anthony J. Mattiello see?
- In 2024, CMS data shows 137 Original Medicare patients and 399 services for Anthony J. Mattiello. This counts Original Medicare only and measures volume, not quality.
- What is Anthony J. Mattiello's NPI number?
- 1215542360. 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 Anthony J. Mattiello, 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 | 137 |
|---|---|
| Services billed to Medicare | 399 |
| Different services or procedures | 47 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)44 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)40 services
- Replacement of knee joint, both sides of knee (27447)36 services
- Replacement of thigh bone and hip joint with prosthesis (27130)25 services
- X-ray of knee, 4 or more views (73564)18 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 blood pressure75%
- High cholesterol75%
- Arthritis75%
- Anxiety33%
- Diabetes31%
- Depression30%
Hospitals where Anthony J. Mattiello works
Medicare's Facility Affiliation Data lists Anthony J. Mattiello 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.
- Kent County Memorial HospitalWarwick, RI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 410009
- Our Lady of Fatima HospitalNorth Providence, RI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 410005
- The Miriam HospitalProvidence, RI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 410012
Practice locations
Addresses where Anthony J. Mattiello is enrolled with Medicare (CMS data updated October 2, 2026).
- 1524 Atwood AveJohnston, RI 02919 (401) 777‑7000
- 1524 Atwood Ave, Suite 122Johnston, RI 02919 (401) 273‑9400
- 285 Promenade StProvidence, RI 02908 (401) 777‑7000
- 300 Crossings BlvdWarwick, RI 02886 (401) 777‑7000
- 900 Warren Ave, Suite 202East Providence, RI 02914 (401) 777‑7000
Group practices
Medicare enrollment lists Anthony J. Mattiello as a member of these groups (CMS data updated October 2, 2026).
- Orthopedics Rhode Island Inc124 clinicians in the group
- Atmed Treatment Center, Inc.11 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Johnston
Clinicians with the same Medicare primary specialty in Johnston, RI — not a recommendation.
Other clinicians in Orthopedics Rhode Island Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215542360 |
| 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