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Family Practice

Heidi E. Chatham, MD

Works at hospitals in Park Ridge, IL · Evanston, IL · Arlington Heights, IL · Illinois

Summary

Heidi E. Chatham, MD (Family Practice) is listed by Medicare at 3 hospitals in Park Ridge, IL, Evanston, IL and Arlington Heights, IL. NPI 1659509834. 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 Heidi E. Chatham, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
18Years since medical school (graduated 2008)
FemaleGender (as listed)
Endeavor Health Medical GroupGroup practice

Quick answers

Which hospitals does Heidi E. Chatham work at?
Medicare's official clinician data lists Heidi E. Chatham at 3 hospitals: Advocate Lutheran General Hospital, Northshore University Healthsystem - Evanston Hospital and Northwest Community Hospital 1. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Heidi E. Chatham see patients?
Medicare's clinician data lists 6 practice locations, including Arlington Heights, IL, Buffalo Grove, IL and Kildeer, IL. Call before your visit to confirm the address.
What is Heidi E. Chatham's specialty?
Medicare lists Family Practice as the primary specialty.
Does Heidi E. Chatham accept Medicare assignment?
Yes. Medicare's clinician data says Heidi E. Chatham 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 Heidi E. Chatham offer telehealth?
Medicare's clinician data says Heidi E. Chatham offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Heidi E. Chatham?
(847) 725-8640, as listed in official Medicare / NPI Registry data.
What is Heidi E. Chatham's NPI number?
1659509834. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Heidi E. Chatham works

Medicare's Facility Affiliation Data lists Heidi E. Chatham 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 Heidi E. Chatham is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Heidi E. Chatham as a member of this group (CMS data updated 2026-10-02).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Arlington Heights

Clinicians with the same Medicare primary specialty in Arlington Heights, IL — not a recommendation.

All family doctors in Arlington Heights →

Clinician information

CredentialMD
Graduation year2008
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1659509834
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