Quick answers
- Which hospitals does Darin Frerichs work at?
- Medicare's official clinician data lists Darin Frerichs at 3 hospitals: Mercy Medical Center - Cedar Rapids, MercyOne Des Moines Medical Center and University of Iowa Hospital & Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Darin Frerichs see patients?
- Medicare's clinician data lists 5 practice locations, including Des Moines, IA, Iowa City, IA and Cedar Rapids, IA. Call before your visit to confirm the address.
- What is Darin Frerichs's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Darin Frerichs accept Medicare assignment?
- Yes. Medicare's clinician data says Darin Frerichs 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 Darin Frerichs?
- (515) 247-3121, as listed in official Medicare / NPI Registry data.
- What is Darin Frerichs's NPI number?
- 1285687111. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Darin Frerichs works
Medicare's Facility Affiliation Data lists Darin Frerichs 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
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · CCN 160083
- University of Iowa Hospital & ClinicsIowa City, IA · Acute Care Hospital · CCN 160058
Practice locations
Addresses where Darin Frerichs is enrolled with Medicare (CMS data updated 2026-10-02).
- 1111 6th AveDes Moines, IA 50314 (515) 247‑3121
- 200 Hawkins DrIowa City, IA 52242 (319) 356‑1616
- 701 10th St SECedar Rapids, IA 52403
- 701 10th St SE J Edward Lundy, Mercy Pediatric ClinicCedar Rapids, IA 52403 (319) 832‑2328
- 701 W Forevergreen Rd, Univ of Ia Health Care Med Ctr N LibertyNorth Liberty, IA 52317 (319) 485‑0550
Group practices
Medicare enrollment lists Darin Frerichs as a member of these groups (CMS data updated 2026-10-02).
- State University of Iowa1,897 clinicians in the group
- Cep America - Anesthesia PC849 clinicians in the group
- Mercy Medical Center305 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Des Moines
Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285687111 |
| 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