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DR. YOLAINE M ST.LOUIS MD
NPI 1619057916
Pediatrics - Pediatric Endocrinology in Uniondale, NY

Active since October 17, 2006PECOS Enrolled
905 UNIONDALE AVE, UNIONDALE, NY 11553(516) 485-4630(516) 489-3682 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Yolaine M St.louis Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. YOLAINE M ST.LOUIS MD (NPI 1619057916) is an individual pediatric endocrinology provider in Uniondale, New York, licensed in New York (155165) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619057916
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameDR. YOLAINE M ST.LOUISCredential: MD
Location Address905 UNIONDALE AVEUniondale, NY 11553-3235
Mailing Address905 Uniondale AveUniondale, NY 11553-3235 · (516) 485-4630 · Fax (516) 489-3682
Phone(516) 485-4630
Fax(516) 489-3682
Sole ProprietorYes
Enumeration DateOctober 17, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1619057916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in NY · 155165
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatricsTaxonomy 208000000X · License 155165 (NY)
905 UNIONDALE AVE, Uniondale, NY 11553
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Other Identifiers 1

Medicaid01027027NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Yolaine M St.louis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11553 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

YOLAINE ST.LOUIS MD PC
Pediatrics
905 UNIONDALE AVE
UNIONDALE, NY 11553
Nassau County (516) 485-4630
EMMANUEL ST LOUIS MD
Family Medicine
905 UNIONDALE AVE
UNIONDALE, NY 11553
Nassau County (516) 489-3681
DOMINIQUE ST LOUIS
Specialist
905 UNIONDALE AVE
UNIONDALE, NY 11553
Nassau County (516) 770-7162
EMMANUEL ST. LOUIS MD PC
Family Medicine
905 UNIONDALE AVE
UNIONDALE, NY 11553
Nassau County (516) 489-3681
DOMINIQUE ST LOUIS CORP
Early Intervention Provider Agency
905 UNIONDALE AVE
UNIONDALE, NY 11553
Nassau County (516) 770-7162

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Yolaine St.louis's NPI number?

The NPI number for Yolaine St.louis is 1619057916. It was assigned to this individual provider in the NPPES registry on October 17, 2006.

Where is Yolaine St.louis located?

Yolaine St.louis practices at 905 Uniondale Ave, Uniondale, NY 11553. The listed phone number is (516) 485-4630.

What is Yolaine St.louis's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Yolaine St.louis enrolled in Medicare?

Yes. Yolaine St.louis is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Yolaine St.louis was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.