Quick answers
- Which hospitals does Mark A. Speyer work at?
- Medicare's official clinician data lists Mark A. Speyer at 1 hospital: Northwestern Medicine Central Dupage Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark A. Speyer see patients?
- Medicare's clinician data lists 5 practice locations, including Winfield, IL, Geneva, IL and Lake Forest, IL. Call before your visit to confirm the address.
- What is Mark A. Speyer's specialty?
- Medicare lists Hospice/Palliative Care as the primary specialty, and also Hospitalist and Internal Medicine.
- Does Mark A. Speyer accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Speyer 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 Mark A. Speyer offer telehealth?
- Medicare's clinician data says Mark A. Speyer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark A. Speyer?
- (630) 260-0600, as listed in official Medicare / NPI Registry data.
- What is Mark A. Speyer's NPI number?
- 1649464488. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark A. Speyer works
Medicare's Facility Affiliation Data lists Mark A. Speyer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
Practice locations
Addresses where Mark A. Speyer is enrolled with Medicare (CMS data updated 2026-10-02).
- 0 N025 Winfield RdWinfield, IL 60190 (630) 260‑0600
- 302 Randall RdGeneva, IL 60134 (630) 377‑7900
- 660 N Westmoreland Rd, 302 Lake Forest ObgynLake Forest, IL 60045 (312) 926‑6146
- 675 N Saint Clair StChicago, IL 60611
- 675 N St ClairChicago, IL 60611
Group practices
Medicare enrollment lists Mark A. Speyer as a member of these groups (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
- Central Dupage Physician Group1,080 clinicians in the group
Specialties
- Hospice/Palliative Careprimary
- Hospitalistalso
- Internal Medicinealso
Other palliative care doctors in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649464488 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians