Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Marie Mathews, PA-C

Medical Physician Assistant in Lake Grove, NY · enumerated 2015 · practices at North Shore Hematology Oncology Associates PC.

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

National Provider Identifier

1518358811

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Registry record

Entity type Individual (Type 1)

Name Alexandra Marie Mathews

Credential PA-C

Sex Female

Practice address 2835 Middle Country Rd, Lake Grove, NY, 11755

Phone (631) 467-3564

Fax (631) 471-2236

Enumeration date Feb 9, 2015

Last updated in NPPES May 18, 2021

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 018422 (NY) Primary

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

Is NPI 1518358811 active?

Yes, as of the latest NPPES snapshot, NPI 1518358811 is active (record last updated 2021-05-18).

How do I verify Alexandra Mathews's NPI record?

Cross-check NPI 1518358811 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Mark Jagust Family Medicine Physician · Lake Grove, NY NPI 1467493494 North Shore Hematology Oncology Associates PC Internal Medicine Physician · Lake Grove, NY NPI 1033071329

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-18.