1. Home
  2. Directory
  3. Arizona
  4. Phoenix
  5. Pediatrics
  6. NPI Profile

ALEKSANDRA MARIA HIBNER
NPI 1821645805
Pediatrics - Neonatal-Perinatal Medicine in Phoenix, AZ

Active since August 23, 2019PECOS Enrolled
1919 E THOMAS RD, PHOENIX, AZ 85016(602) 933-6345(602) 933-8975 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 16, 2026, Jul 11, 2023, Aug 23, 2019 (3 updates tracked since 2019).

About Aleksandra Maria Hibner NPPES

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

ALEKSANDRA MARIA HIBNER (NPI 1821645805) is an individual neonatal-perinatal medicine provider in Phoenix, Arizona, licensed in Arizona (79544) and active in the NPI registry since August 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in La Jolla, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1821645805
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameALEKSANDRA MARIA HIBNER
Location Address1919 E THOMAS RDPhoenix, AZ 85016-7710
Mailing Address2108 E Thomas RdPhoenix, AZ 85016-7761 · (602) 933-3124
Phone(602) 933-6345
Fax(602) 933-8975
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateAugust 23, 2019
Last NPPES UpdateJuly 16, 20263 updates tracked since enumeration
NPPES CertifiedJuly 16, 2026
✔ NPI 1821645805 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in AZ · 79544
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
1919 E THOMAS RD, Phoenix, AZ 85016
Open in Google Maps ↗

Other Names 1

Former Name (1)Aleksandra Adamczak

Secondary Practice Location 1

Location 19300 Campus Point Dr # Mc7774LA Jolla, CA 92037-1300 · Phone (858) 249-1702 · Fax (619) 543-3812

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Aleksandra Maria Hibner is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446716278
PECOS Enrollment IDI20260731000511
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 Hibner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Phoenix Children's Hospital
Same address
Pediatrics
1919 E THOMAS RD
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 1,416 clinicians in this Medicare group
NPI 1922112044 (602) 933-1000

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.

DR. TIMUR RAGHIB M.D.
Hospitalist
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-0777
MRS. MARIA T ESCOBAR CSP, RD
Dietitian, Registered
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (480) 440-2787
DR. AHMAR HUSAIN MD
Anesthesiology (Pediatric Anesthesiology)
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-4660
MRS. SOLEE R COWLEY LCSW
Social Worker (Clinical)
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-0414
MR. SEAN PATRICK BRADY DO
Anesthesiology (Pediatric Anesthesiology)
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-4660
PRIYA PRASHER M.D.
Pediatrics
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-1900
DR. AMIT RAJARAM D.O.
Pediatrics
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-0198
LAURA GARDNER HAMANT
Pediatrics (Pediatric Gastroenterology)
1919 E THOMAS RD
PHOENIX, AZ 85016
Maricopa County (602) 933-1000

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 Aleksandra Hibner's NPI number?

The NPI number for Aleksandra Hibner is 1821645805. It was assigned to this individual provider in the NPPES registry on August 23, 2019. The provider is also known as Aleksandra Adamczak.

Where is Aleksandra Hibner located?

Aleksandra Hibner practices at 1919 E Thomas Rd, Phoenix, AZ 85016. The listed phone number is (602) 933-6345.

What is Aleksandra Hibner's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Aleksandra Hibner enrolled in Medicare?

Yes. Aleksandra Hibner is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Aleksandra Hibner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aleksandra Hibner reassigns Medicare benefits to Phoenix Children's Hospital (Phoenix, AZ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Aleksandra Hibner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Aleksandra Hibner was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.