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Pediatric Medicine

Alyx D. Posorske, MD

Sees patients in Indianapolis, IN · Indiana

Summary

Dr. Alyx D. Posorske, MD is a pediatrician at 705 Riley Hospital Dr, Indianapolis, IN 46202. Phone: (888) 484-3258. Accepts Medicare assignment. NPI 1205332707. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Pediatrician (Medicare lists Pediatric Medicine)
  • Address: 705 Riley Hospital Dr, Indianapolis, IN 46202 · Directions
  • Phone: (888) 484‑3258
  • Medicare: Accepts Medicare assignment
  • Group practice: IU Health Medical Group Riley Specialists LLC
  • Medical school: Saint Louis University School Of Medicine · graduated 2018 (8 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Alyx D. Posorske, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Alyx D. Posorske accept Medicare assignment?
Yes. Medicare's clinician data says Alyx D. Posorske accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Alyx D. Posorske's NPI number?
1205332707. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Alyx D. Posorske is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alyx D. Posorske as a member of this group (CMS data updated October 2, 2026).

  • IU Health Medical Group Riley Specialists LLC302 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in Indiana →

Other pediatricians in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

All pediatricians in Indianapolis →

Other clinicians in IU Health Medical Group Riley Specialists LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolSaint Louis University School Of Medicine
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205332707
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians