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Pediatric Medicine

Theresa Longo, MD

Sees patients in Mattoon, IL · Illinois

Summary

Dr. Theresa Longo, MD is a pediatrician at 2512 Hurst Dr, Mattoon, IL 61938. Phone: (217) 258-5900. Accepts Medicare assignment. NPI 1902990518. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Pediatrician (Medicare lists Pediatric Medicine)
  • Address: 2512 Hurst Dr, Mattoon, IL 61938 · Directions (1 more location)
  • Phone: (217) 258‑5900
  • Medicare: Accepts Medicare assignment
  • Group practice: Hoopeston Community Memorial Hospital
  • Medical school: University Of California, Davis School Of Medicine · graduated 1978 (48 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Theresa Longo, 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 Theresa Longo accept Medicare assignment?
Yes. Medicare's clinician data says Theresa Longo 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 Theresa Longo's NPI number?
1902990518. 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 Theresa Longo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Theresa Longo as a member of this group (CMS data updated October 2, 2026).

  • Hoopeston Community Memorial Hospital144 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in Illinois →

Other pediatricians in Illinois

Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.

All pediatricians in Illinois →

Other clinicians in Hoopeston Community Memorial Hospital

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Davis School Of Medicine
Graduation year1978 (48 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1902990518
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