Leah Pieczynski, PA-C
NPI 1427361740 · Medical Physician Assistant · Winnetka, IL
Enrolled with Medicare as Order and Referring Only - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leah Pieczynski, PA-C is a Medical Physician Assistant provider in Winnetka, IL (NPI 1427361740).
Provider details
- NPI number
- 1427361740
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 085001895 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES 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
Registry dates
- Enumerated
- 2010-07-15
- Last updated
- 2010-07-15
Frequently asked questions
- What is Leah Pieczynski's NPI number?
- Leah Pieczynski's National Provider Identifier (NPI) is 1427361740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leah Pieczynski's specialty?
- Leah Pieczynski is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Leah Pieczynski located?
- Leah Pieczynski's practice location on file with NPPES is 716 Elm St, Winnetka, IL 60093-2556.
- What is Leah Pieczynski's phone number?
- The practice phone number listed in the NPPES registry for Leah Pieczynski is (847) 501-4040.
- Does Leah Pieczynski accept Medicare?
- Leah Pieczynski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leah Pieczynski's NPI active?
- Yes — Leah Pieczynski's NPI (1427361740) is active in the NPPES registry as of the last update on 2010-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.