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Internal Medicine

Megan A. Lileas, MD

Works at hospitals in Youngstown, OH · Ohio

Summary

Dr. Megan A. Lileas, MD is an internal medicine doctor at 7630 Southern Blvd, Youngstown, OH 44512. Phone: (330) 729-8000. Accepts Medicare assignment. NPI 1356082275. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 7630 Southern Blvd, Youngstown, OH 44512 · Directions
  • Phone: (330) 729‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: MH St Elizabeth Youngstown Hospital
  • Group practice: Triad Health Services LLC
  • Medical school: graduated 2021 (5 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Megan A. Lileas, 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 Megan A. Lileas accept Medicare assignment?
Yes. Medicare's clinician data says Megan A. Lileas 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 Megan A. Lileas's NPI number?
1356082275. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Megan A. Lileas works

Medicare's Facility Affiliation Data lists Megan A. Lileas at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Megan A. Lileas is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Megan A. Lileas as a member of this group (CMS data updated October 2, 2026).

  • Triad Health Services LLC258 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in Youngstown

Clinicians with the same Medicare primary specialty in Youngstown, OH — not a recommendation.

All internal medicine doctors in Youngstown →

Other clinicians in Triad Health Services LLC

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

Clinician information

CredentialMD
Graduation year2021 (5 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356082275
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians