Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Darcy K Upton, PT RN

Q: What is the NPI number for Darcy Upton?

The National Provider Identifier (NPI) for Darcy Upton is 1720123474, a Type 1 (individual) record in the CMS NPPES registry.

Registered Nurse in Port Jefferson, NY · enumerated 2007 · practices at Mohammad Mostafa Amin Physician, Pllc.

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

National Provider Identifier

1720123474

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Registry record

Entity type Individual (Type 1)

Name Ms. Darcy K Upton

Credential PT RN

Sex Female

Practice address 200 Belle Terre Road, St Charles Hospital, Port Jefferson, NY, 11777

Phone (631) 474-6812

Enumeration date Feb 20, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 322507 (NY) Primary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 003715 (NY) Secondary

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Darcy Upton?

The National Provider Identifier (NPI) for Darcy Upton is 1720123474, a Type 1 (individual) record in the CMS NPPES registry.

Where does Darcy Upton practice?

The practice location on file with NPPES is in Port Jefferson, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.