Quick answers
- Which hospitals does Christopher J. Ronkar work at?
- Medicare's official clinician data lists Christopher J. Ronkar at 4 hospitals: Grinnell Regional Medical Center, Mahaska Health Partnership, MercyOne Des Moines Medical Center and MercyOne North Iowa Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Christopher J. Ronkar see patients?
- Medicare's clinician data lists 1 practice location in Urbandale, IA. Call before your visit to confirm the address.
- What is Christopher J. Ronkar's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Christopher J. Ronkar accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher J. Ronkar 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 Christopher J. Ronkar offer telehealth?
- Medicare's clinician data says Christopher J. Ronkar offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Christopher J. Ronkar?
- (515) 270-7222, as listed in official Medicare / NPI Registry data.
- What is Christopher J. Ronkar's NPI number?
- 1992810956. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christopher J. Ronkar works
Medicare's Facility Affiliation Data lists Christopher J. Ronkar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grinnell Regional Medical CenterGrinnell, IA · Acute Care Hospital · CCN 160147
- Mahaska Health PartnershipOskaloosa, IA · Critical Access Hospital · CCN 161379
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · CCN 160083
- MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · CCN 160064
Practice locations
Addresses where Christopher J. Ronkar is enrolled with Medicare (CMS data updated 2026-10-02).
- 8421 Plum DrUrbandale, IA 50322 (515) 270‑7222
Group practices
Medicare enrollment lists Christopher J. Ronkar as a member of this group (CMS data updated 2026-10-02).
- Iowa Arthritis and Osteoporosis Center PC15 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Urbandale
Clinicians with the same Medicare primary specialty in Urbandale, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1992810956 |
| 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