Quick answers
- Which hospitals does Mark Kellen work at?
- Medicare's official clinician data lists Mark Kellen at 1 hospital: Mercy Medical Center - Cedar Rapids. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Kellen see patients?
- Medicare's clinician data lists 4 practice locations, including Pontiac, IL, Cedar Rapids, IA and Peoria, IL. Call before your visit to confirm the address.
- What is Mark Kellen's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Pain Management.
- Does Mark Kellen accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Kellen 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 Kellen?
- (319) 832-2328, as listed in official Medicare / NPI Registry data.
- What is Mark Kellen's NPI number?
- 1023178647. 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 Kellen works
Medicare's Facility Affiliation Data lists Mark Kellen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Medical Center - Cedar RapidsCedar Rapids, IA · Acute Care Hospital · CCN 160079
Practice locations
Addresses where Mark Kellen is enrolled with Medicare (CMS data updated 2026-10-02).
- 2500 W Reynolds StPontiac, IL 61764
- 701 10th St SECedar Rapids, IA 52403
- 701 10th St SE J Edward Lundy, Mercy Pediatric ClinicCedar Rapids, IA 52403 (319) 832‑2328
- 8600 State Route 91, Suite 130Peoria, IL 61615 (309) 683‑5050
Group practices
Medicare enrollment lists Mark Kellen as a member of these groups (CMS data updated 2026-10-02).
- OSF Multi-Specialty Group2,114 clinicians in the group
- Mercy Medical Center305 clinicians in the group
Specialties
- Anesthesiologyprimary
- Pain Managementalso
Other anesthesiologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Graduation year | 1990 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023178647 |
| 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