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Allergy/Immunology

Amy O. Thomas, MD

Works at hospitals in Lake Forest, IL · Chicago, IL · Illinois

Summary

Amy O. Thomas, MD (Allergy/Immunology) is listed by Medicare at 2 hospitals in Lake Forest, IL and Chicago, IL. NPI 1134359862. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Amy O. Thomas, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
17Years since medical school (graduated 2009)
State University Of Ny Upstate Medical UniversityMedical school
FemaleGender (as listed)
Northwestern Medical Faculty FoundationGroup practice

Quick answers

Which hospitals does Amy O. Thomas work at?
Medicare's official clinician data lists Amy O. Thomas at 2 hospitals: Northwestern Lake Forest Hospital and Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Amy O. Thomas see patients?
Medicare's clinician data lists 1 practice location in Gurnee, IL. Call before your visit to confirm the address.
What is Amy O. Thomas's specialty?
Medicare lists Allergy/Immunology as the primary specialty.
Does Amy O. Thomas accept Medicare assignment?
Yes. Medicare's clinician data says Amy O. Thomas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Amy O. Thomas offer telehealth?
Medicare's clinician data says Amy O. Thomas offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Amy O. Thomas?
(847) 535-7157, as listed in official Medicare / NPI Registry data.
What is Amy O. Thomas's NPI number?
1134359862. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Amy O. Thomas works

Medicare's Facility Affiliation Data lists Amy O. Thomas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Amy O. Thomas is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Amy O. Thomas as a member of this group (CMS data updated 2026-10-02).

  • Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Illinois →

Other allergist and immunologists in Illinois

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

All allergist and immunologists in Illinois →

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year2009
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1134359862
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians