DR. ALEKSANDRA OLSZEWSKI
NPI 1861854903
Pediatrics - Pediatric Critical Care Medicine in Seattle, WA

Q: What is Aleksandra Olszewski's NPI number?

The NPI number for Aleksandra Olszewski is 1861854903. It was assigned to this individual provider in the NPPES registry on March 28, 2016.

Q: What is Aleksandra Olszewski's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Active since March 28, 2016PECOS Enrolled

4800 SAND POINT WAY NE # OC.7830, SEATTLE, WA 98105(206) 987-2525 Get Directions Write a Review

NPPES record last updated: August 8, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 8, 2024, Jul 13, 2017, Mar 28, 2016 (3 updates tracked since 2016).

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About Dr. Aleksandra Olszewski NPPES

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

DR. ALEKSANDRA OLSZEWSKI (NPI 1861854903) is an individual pediatric critical care medicine provider in Seattle, Washington, licensed in Pennsylvania (MD485421) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861854903

Entity TypeIndividualFemale

Primary Taxonomy2080P0203X

Provider Legal NameDR. ALEKSANDRA OLSZEWSKI

Location Address4800 SAND POINT WAY NE # OC.7830Seattle, WA 98105-3901

Mailing Address5538 Pocusset StPittsburgh, PA 15217-1913 · (608) 295-5910

Phone(206) 987-2525

Sole ProprietorNo

Enumeration DateMarch 28, 2016

Last NPPES UpdateAugust 8, 20243 updates tracked since enumeration

NPPES CertifiedAugust 8, 2024

✔ NPI 1861854903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080P0203X

License✔ Licensed in PA · MD485421

Definition

A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

4800 SAND POINT WAY NE # OC.7830, Seattle, WA 98105

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aleksandra Olszewski 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.

Medicare Billing Reassignment

Medicare enrollment records show Aleksandra Olszewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Pittsburgh Physicians

2,102 mi

Neurological Surgery

425 W FIFTH ST, EAST LIVERPOOL CITY HOSPITAL
East Liverpool, OH 43920

Reassigned Medicare billing, Pennsylvania enrollment
7,114 clinicians in this Medicare group

NPI 1811945793 (330) 386-3195

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

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

ISABELLE MARIA KIEFABER

Pediatrics