Leslie R Kowalski, PHD, Ibclc LLC
NPI 1386598993 · Lactation Consultant (Non-RN) · West Windsor, NJ
Leslie R Kowalski, PHD, Ibclc LLC is a Lactation Consultant (Non-RN) organization in West Windsor, NJ (NPI 1386598993).
Provider details
- NPI number
- 1386598993
- Entity type
- Organization
- Primary specialty
- Lactation Consultant (Non-RN)Other Service Providers
- Organization subpart
- No
- Authorized official
- Leslie Kowalski, Ibclc(908) 715-5454
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Lactation Solutions of Princeton
Registry dates
- Enumerated
- 2026-02-23
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Leslie R Kowalski, PHD, Ibclc LLC's NPI number?
- Leslie R Kowalski, PHD, Ibclc LLC's National Provider Identifier (NPI) is 1386598993, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Leslie R Kowalski, PHD, Ibclc LLC?
- Leslie R Kowalski, PHD, Ibclc LLC is classified in the NPPES registry as Lactation Consultant (Non-RN) (Other Service Providers).
- Where is Leslie R Kowalski, PHD, Ibclc LLC located?
- Leslie R Kowalski, PHD, Ibclc LLC's practice location on file with NPPES is 231 Clarksville Rd Ste 4c, West Windsor, NJ 08550-5300.
- What is Leslie R Kowalski, PHD, Ibclc LLC's phone number?
- The practice phone number listed in the NPPES registry for Leslie R Kowalski, PHD, Ibclc LLC is (609) 200-1409.
- Who is the authorized official for Leslie R Kowalski, PHD, Ibclc LLC?
- The authorized official listed on Leslie R Kowalski, PHD, Ibclc LLC's NPPES record is Leslie Kowalski, Ibclc. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Leslie R Kowalski, PHD, Ibclc LLC's NPI active?
- Yes — Leslie R Kowalski, PHD, Ibclc LLC's NPI (1386598993) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.