Dr. Robert Alexander Marzilli, PHD
Dr. Robert Alexander Marzilli is a Clinical Psychologist provider (Psychologist) practicing in Johnston, RI, registered in the NPPES registry with NPI 1114041076 since 2007. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1114041076 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Robert Alexander Marzilli |
| Credential | PHD |
| Sex | Male |
| Practice address | Johnston, RI, 02919 |
| Phone | 4018612190 |
| Enumeration date | 2007-03-18 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Primary | PS00233 | RI |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 61-08838 | Other | RI | UNITED HEALTHCARE |
| 9234-0 | Other | RI | RI BLUE CROSS |
| CP00409526-001 | Other | RI | RI BLUE CHIP |
Copy-ready billing details
Provider: Robert Marzilli, PHD NPI: 1114041076 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Johnston, RI, 02919
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1629076351 | Gisele Saliba | Individual | Cardiovascular Disease Physician | Providence, RI |
| 1952395022 | Angelo Dicenso | Individual | Internal Medicine Physician | Johnston, RI |
| 1013902816 | William Andreoni | Individual | Ophthalmology Physician | Johnston, RI |
| 1518952258 | Ophthalmic Surgeons, Ltd | Organization | Specialist | Johnston, RI |
| 1255326997 | Michael Bellucci | Individual | Optometrist | Johnston, RI |
| 1982699625 | Charles Newell | Individual | Optometrist | Johnston, RI |
| 1619963378 | Cyril Burke | Individual | Neurology Physician | Johnston, RI |
| 1699756791 | Michel Arcand | Individual | Orthopaedic Surgery Physician | Johnston, RI |
Verify this record
Cross-check NPI 1114041076 against the authoritative CMS record: view Dr. Robert Alexander Marzilli on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.