Quick answers
- Which hospitals does Timothy Siebach work at?
- Medicare's official clinician data lists Timothy Siebach at 1 hospital: Advocate Christ Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Timothy Siebach see patients?
- Medicare's clinician data lists 2 practice locations, including Buffalo Grove, IL and Orland Park, IL. Call before your visit to confirm the address.
- What is Timothy Siebach's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Timothy Siebach accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy Siebach 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 Timothy Siebach offer telehealth?
- Medicare's clinician data says Timothy Siebach offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Timothy Siebach?
- (847) 459-1160, as listed in official Medicare / NPI Registry data.
- What is Timothy Siebach's NPI number?
- 1356920565. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Timothy Siebach works
Medicare's Facility Affiliation Data lists Timothy Siebach at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
Practice locations
Addresses where Timothy Siebach is enrolled with Medicare (CMS data updated 2026-10-02).
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 9550 W 167th StOrland Park, IL 60467
Group practices
Medicare enrollment lists Timothy Siebach as a member of this group (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Buffalo Grove
Clinicians with the same Medicare primary specialty in Buffalo Grove, IL — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1356920565 |
| 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