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Mary Pat Roy, MD, LLC

Endocrinology, Diabetes & Metabolism Physician in Northampton, MA · enumerated 2006 · authorized official Mary Roy, Practice Manager/Owner.

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

National Provider Identifier

1841235918

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Registry record

Entity type Organization (Type 2)
Legal business name Mary Pat Roy, MD, LLC
Practice address 766 N King St, #1, Northampton, MA, 01060
Phone (413) 586-0611
Fax (413) 586-4441
Enumeration date Jun 20, 2006
Last updated in NPPES Oct 4, 2007

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mary Roy
Title Practice Manager/Owner
Phone (413) 586-0611

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 is the NPI number for Mary Pat Roy, MD, LLC?
The NPI for Mary Pat Roy, MD, LLC is 1841235918, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mary Pat Roy, MD, LLC?
NPPES lists Mary Roy (Practice Manager/Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-04.