Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Mcwilliams, PHD

Clinical Child & Adolescent Psychologist in Riverside, RI · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275127458

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Registry record

Entity type Individual (Type 1)

Name Melissa Mcwilliams

Credential PHD

Sex Female

Practice address 1011 Veterans Memorial Pkwy, Riverside, RI, 02915

Phone (401) 432-1119

Enumeration date Feb 27, 2021

Last updated in NPPES Sep 28, 2021

Taxonomy & licenses

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

103TS0200X School Psychologist Behavioral Health & Social Service Providers Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License PS01986 (RI) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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.

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Frequently asked questions

What specialty is Melissa Mcwilliams?

Melissa Mcwilliams is registered in NPPES with the primary taxonomy of Clinical Child & Adolescent Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Noha Sadek Psychiatry Physician · Riverside, RI NPI 1104803535 Emma Pendleton Bradley Hospital Psychiatric Hospital · East Providence, RI NPI 1225017486 Dale Radka Child & Adolescent Psychiatry Physician · East Providence, RI NPI 1952356628 Geanina Costea Child & Adolescent Psychiatry Physician · East Providence, RI NPI 1891740189 Jeffrey Hunt Child & Adolescent Psychiatry Physician · East Providence, RI NPI 1952357998 Margaret Klitzke Child & Adolescent Psychiatry Physician · East Providence, RI NPI 1770539728 Christina Bellanti Clinical Psychologist · East Providence, RI NPI 1508813791 John Boekamp Clinical Psychologist · East Providence, RI NPI 1790722627

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-28.