Quick answers
- Which hospitals does Ryan R. Mertens work at?
- Medicare's official clinician data lists Ryan R. Mertens at 5 hospitals: Boone County Hospital, Grinnell Regional Medical Center, Guthrie County Hospital, Pella Regional Health Center and UnityPoint Health - Des Moines Iowa Methodist Medi…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan R. Mertens see patients?
- Medicare's clinician data lists 2 practice locations, including Pella, IA and West Des Moines, IA. Call before your visit to confirm the address.
- What is Ryan R. Mertens's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Internal Medicine.
- Does Ryan R. Mertens accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan R. Mertens 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 Ryan R. Mertens?
- (641) 628-3832, as listed in official Medicare / NPI Registry data.
- What is Ryan R. Mertens's NPI number?
- 1487965372. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan R. Mertens works
Medicare's Facility Affiliation Data lists Ryan R. Mertens at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Boone County HospitalBoone, IA · Critical Access Hospital · CCN 161372
- Grinnell Regional Medical CenterGrinnell, IA · Acute Care Hospital · CCN 160147
- Guthrie County HospitalGuthrie Center, IA · Critical Access Hospital · CCN 161314
- Pella Regional Health CenterPella, IA · Critical Access Hospital · CCN 161367
- UnityPoint Health - Des Moines Iowa Methodist Medi…Des Moines, IA · Acute Care Hospital · CCN 160082
Practice locations
Addresses where Ryan R. Mertens is enrolled with Medicare (CMS data updated 2026-10-02).
- 405 Monroe StPella, IA 50219 (641) 628‑3832
- 5950 University Ave, Suite 131West Des Moines, IA 50266 (515) 875‑9100
Group practices
Medicare enrollment lists Ryan R. Mertens as a member of these groups (CMS data updated 2026-10-02).
- The Iowa Clinic PC310 clinicians in the group
- Pella Regional Health Center98 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
- Internal Medicinealso
Other pulmonologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487965372 |
| 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