Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Yolaine M St.Louis, MD

Pediatric Endocrinology Physician in Uniondale, NY · enumerated 2006.

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

National Provider Identifier

1619057916

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Registry record

Entity type Individual (Type 1)

Name Dr. Yolaine M St.Louis

Credential MD

Sex Female

Practice address Uniondale, NY, 11553

Phone (516) 485-4630

Fax (516) 489-3682

Enumeration date Oct 17, 2006

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 155165 (NY) Secondary

2080P0205X Pediatric Endocrinology Physician Allopathic & Osteopathic Physicians · License 155165 (NY) Primary

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

Other identifiers

Identifier	Type	State	Issuer
01027027	Medicaid	NY	-

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 Yolaine St.Louis's NPI record?

Cross-check NPI 1619057916 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1619057916 active?

Yes, as of the latest NPPES snapshot, NPI 1619057916 is active (record last updated 2025-09-11).

Other providers at this practice address

Browse all →

Emmanuel St Louis Family Medicine Physician · Uniondale, NY NPI 1114937968 Emmanuel St. Louis MD PC Family Medicine Physician · Uniondale, NY NPI 1417199027 Yolaine St.Louis MD PC Pediatrics Physician · Uniondale, NY NPI 1063752004 Dominique St Louis Specialist · Uniondale, NY NPI 1295158871 Dominique St Louis Corp Early Intervention Provider Agency · Uniondale, NY NPI 1922557099

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