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LESLIE R KOWALSKI, PHD, IBCLC LLC
NPI 1386598993
Lactation Consultant, Non-RN in West Windsor, NJ

Active since February 23, 2026
231 CLARKSVILLE RD STE 4C, WEST WINDSOR, NJ 08550(609) 200-1409 Get Directions Write a Review

NPPES record last updated: March 3, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Leslie R Kowalski, Phd, Ibclc Llc NPPES

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

LESLIE R KOWALSKI, PHD, IBCLC LLC (NPI 1386598993), doing business as Lactation Solutions Of Princeton, is a healthcare organization registered as a lactation consultant, non-rn in West Windsor, New Jersey and active in the NPI registry since February 2026. The organization lists Leslie Kowalski, Ibclc, as its authorized official.

NPPES Registry Identity

NPI1386598993
Entity TypeOrganization
Primary Taxonomy174N00000X
Legal Business NameLESLIE R KOWALSKI, PHD, IBCLC LLC
Location Address231 CLARKSVILLE RD STE 4CWest Windsor, NJ 08550-5300
Mailing Address7 Jeffers RdPlainsboro, NJ 08536-1901 · (908) 715-5454 · Fax (888) 216-1506
Phone(609) 200-1409
Organization SubpartNo
Authorized OfficialLeslie KowalskiIbclc · (908) 715-5454
Enumeration DateFebruary 23, 2026
Last NPPES UpdateMarch 3, 2026
NPPES CertifiedMarch 3, 2026
✔ NPI 1386598993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyLactation Consultant, Non-RNOther Service Providers
Taxonomy Code174N00000X
Definition
An individual trained to provide breastfeeding assistance services to both mothers and infants. Lactation Consultants are not required to be nurses and are trained through specific courses of education. The Lactation Consultant may have additional certification through a national or international organization.
231 CLARKSVILLE RD STE 4C, West Windsor, NJ 08550
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Other Names 1

Doing Business AsLactation Solutions Of Princeton

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 Leslie R Kowalski, Phd, Ibclc LLC's NPI number?

The NPI number for Leslie R Kowalski, Phd, Ibclc LLC is 1386598993. It was assigned to this organization in the NPPES registry on February 23, 2026. The provider is doing business as Lactation Solutions of Princeton.

Where is Leslie R Kowalski, Phd, Ibclc LLC located?

Leslie R Kowalski, Phd, Ibclc LLC is located at 231 Clarksville Rd Ste 4C, West Windsor, NJ 08550. The listed phone number is (609) 200-1409.

What is Leslie R Kowalski, Phd, Ibclc LLC's specialty?

The primary specialty registered for this NPI is Lactation Consultant, Non-RN with taxonomy code 174N00000X.

When was this NPI record last updated?

The NPPES record for Leslie R Kowalski, Phd, Ibclc LLC was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.