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Simon Selwyn LLC

Psychiatric/Mental Health Nurse Practitioner in Belmont, MA · enumerated 2022 · authorized official Simon Selwyn, Psychiatric Nurse Practitioner.

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

National Provider Identifier

1619625753

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Registry record

Entity type Organization (Type 2)
Legal business name Simon Selwyn LLC
Practice address 38 Lexington St Ste E, Belmont, MA, 02478
Phone (617) 596-1975
Fax (617) 977-2526
Enumeration date Mar 17, 2022
Last updated in NPPES Mar 17, 2022

Taxonomy & classification

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Simon Selwyn
Title Psychiatric Nurse Practitioner
Phone (617) 596-1975

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

Who is the authorized official for Simon Selwyn LLC?
NPPES lists Simon Selwyn (Psychiatric Nurse Practitioner) as the authorized official for this organization.
What is the NPI number for Simon Selwyn LLC?
The NPI for Simon Selwyn LLC is 1619625753, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-17.