Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Agnes Newell, D.O.

Emergency Medicine Physician in Sleepy Hollow, NY · enumerated 2012.

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

National Provider Identifier

1174882757

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Agnes Newell

Credential D.O.

Sex Female

Practice address 701 North Broadway, Northwell Phelps Hospital Emergency Medicine Dept., Sleepy Hollow, NY, 10457

Phone (914) 366-3591

Enumeration date May 16, 2012

Last updated in NPPES Aug 13, 2025

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 268239-1 (NY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1174882757 active?

Yes, as of the latest NPPES snapshot, NPI 1174882757 is active (record last updated 2025-08-13).

How do I verify Mary Newell's NPI record?

Cross-check NPI 1174882757 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-13.