Quick answers
- Where does Robert S. Markus see patients?
- Medicare's clinician data lists 2 practice locations, including New Lenox, IL and Woodridge, IL. Call before your visit to confirm the address.
- What is Robert S. Markus's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Robert S. Markus accept Medicare assignment?
- Yes. Medicare's clinician data says Robert S. Markus 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.
- What is the phone number for Robert S. Markus?
- (815) 300-7106, as listed in official Medicare / NPI Registry data.
- What is Robert S. Markus's NPI number?
- 1588629026. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Robert S. Markus is enrolled with Medicare (CMS data updated 2026-10-02).
- 1900 Silver Cross BlvdNew Lenox, IL 60451 (815) 300‑7106
- 7425 Janes AveWoodridge, IL 60517 (815) 300‑7764
Group practices
Medicare enrollment lists Robert S. Markus as a member of this group (CMS data updated 2026-10-02).
- Premier Suburban Medical Group, PLLC29 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in New Lenox
Clinicians with the same Medicare primary specialty in New Lenox, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588629026 |
| 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
- 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