Quick answers
- Which hospitals does Karissa Merkel work at?
- Medicare's official clinician data lists Karissa Merkel at 3 hospitals: Morris Hospital & Healthcare Centers, OSF Saint Elizabeth MDL Center and Saint Joseph Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Karissa Merkel see patients?
- Medicare's clinician data lists 2 practice locations, including Morris, IL and Ottawa, IL. Call before your visit to confirm the address.
- What is Karissa Merkel's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Karissa Merkel accept Medicare assignment?
- Yes. Medicare's clinician data says Karissa Merkel 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 Karissa Merkel?
- (815) 942-9299, as listed in official Medicare / NPI Registry data.
- What is Karissa Merkel's NPI number?
- 1538779533. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Karissa Merkel works
Medicare's Facility Affiliation Data lists Karissa Merkel at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Morris Hospital & Healthcare CentersMorris, IL · Acute Care Hospital · CCN 140101
- OSF Saint Elizabeth MDL CenterPeru, IL · Acute Care Hospital · CCN 140110
- Saint Joseph Medical CenterJoliet, IL · Acute Care Hospital · CCN 140007
Practice locations
Addresses where Karissa Merkel is enrolled with Medicare (CMS data updated 2026-10-02).
- 1051 W US Route 6, Suite 300Morris, IL 60450 (815) 942‑9299
- 1306 Gemini Cir, Suite 2Ottawa, IL 61350 (815) 433‑0850
Group practices
Medicare enrollment lists Karissa Merkel as a member of this group (CMS data updated 2026-10-02).
- Morris Hospital115 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Morris
Clinicians with the same Medicare primary specialty in Morris, IL — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538779533 |
| 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