Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria Giannopoulos, M.D.

Obstetrics & Gynecology Physician in Garden City, NY · enumerated 2015.

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

National Provider Identifier

1598149460

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Registry record

Entity type Individual (Type 1)

Name Maria Giannopoulos

Credential M.D.

Sex Female

Practice address 877 Stewart Ave Ste 30, Garden City, NY, 11530

Phone (856) 577-8138

Enumeration date Jul 10, 2015

Last updated in NPPES Jul 18, 2017

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 289571-1 (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

How do I verify Maria Giannopoulos's NPI record?

Cross-check NPI 1598149460 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598149460 active?

Yes, as of the latest NPPES snapshot, NPI 1598149460 is active (record last updated 2017-07-18).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-18.