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Allergy/Immunology

Joel S. Klein, MD

Works at hospitals in Evanston, IL · Illinois

Summary

Joel S. Klein, MD (Allergy/Immunology) is listed by Medicare at 1 hospital in Evanston, IL. NPI 1770566820. 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 Joel S. Klein, 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
39Years since medical school (graduated 1987)
R Franklin University Of Med & Sci/chicago Medical SchoolMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Joel S. Klein work at?
Medicare's official clinician data lists Joel S. Klein at 1 hospital: Northshore University Healthsystem - Evanston Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Joel S. Klein see patients?
Medicare's clinician data lists 1 practice location in Highland Park, IL. Call before your visit to confirm the address.
What is Joel S. Klein's specialty?
Medicare lists Allergy/Immunology as the primary specialty.
Does Joel S. Klein accept Medicare assignment?
Yes. Medicare's clinician data says Joel S. Klein 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 Joel S. Klein offer telehealth?
Medicare's clinician data says Joel S. Klein offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Joel S. Klein?
(847) 432-0200, as listed in official Medicare / NPI Registry data.
What is Joel S. Klein's NPI number?
1770566820. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Joel S. Klein works

Medicare's Facility Affiliation Data lists Joel S. Klein 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 Joel S. Klein is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Allergy/Immunology doctors in Illinois →

Other allergist and immunologists in Highland Park

Clinicians with the same Medicare primary specialty in Highland Park, IL — not a recommendation.

All allergist and immunologists in Highland Park →

Clinician information

CredentialMD
Medical schoolR Franklin University Of Med & Sci/chicago Medical School
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1770566820
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