Quick answers
- Which hospitals does Mark Fritsch work at?
- Medicare's official clinician data lists Mark Fritsch at 1 hospital: Franciscan Health Olympia & Chicago Heights. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Fritsch see patients?
- Medicare's clinician data lists 3 practice locations, including Chicago Heights, IL, Olympia Fields, IL and Hammond, IN. Call before your visit to confirm the address.
- What is Mark Fritsch's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Mark Fritsch accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Fritsch 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 Mark Fritsch?
- (708) 756-1000, as listed in official Medicare / NPI Registry data.
- What is Mark Fritsch's NPI number?
- 1467445361. 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 Fritsch works
Medicare's Facility Affiliation Data lists Mark Fritsch at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · CCN 140172
Practice locations
Addresses where Mark Fritsch is enrolled with Medicare (CMS data updated 2026-10-02).
- 1423 Chicago RdChicago Heights, IL 60411 (708) 756‑1000
- 20201 Crawford AveOlympia Fields, IL 60461 (708) 747‑4900
- 2434 Interstate Plaza DrHammond, IN 46324 (219) 989‑3700
Group practices
Medicare enrollment lists Mark Fritsch as a member of these groups (CMS data updated 2026-10-02).
- Pathology Consultants Inc20 clinicians in the group
- Consultants in Pathology SC6 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Medical school | University Of South Florida College Of Medicine |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467445361 |
| 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