Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sandra Aleksic, MD

Endocrinology, Diabetes & Metabolism Physician in Tarrytown, NY · enumerated 2013.

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

National Provider Identifier

1265864409

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Registry record

Entity type Individual (Type 1)

Name Dr. Sandra Aleksic

Credential MD

Sex Female

Practice address 150 White Plains Rd Fl 2, Tarrytown, NY, 10591

Phone (914) 909-3190

Fax (914) 631-0094

Enumeration date Jul 30, 2013

Last updated in NPPES Jan 12, 2021

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 299307 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 1265864409 active?

Yes, as of the latest NPPES snapshot, NPI 1265864409 is active (record last updated 2021-01-12).

How do I verify Sandra Aleksic's NPI record?

Cross-check NPI 1265864409 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 2021-01-12.