Quick answers
- Which hospitals does Grant Peterson work at?
- Medicare's official clinician data lists Grant Peterson at 1 hospital: UnityPoint Health - Des Moines Iowa Methodist Medi…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Grant Peterson see patients?
- Medicare's clinician data lists 5 practice locations, including Des Moines, IA, Altoona, IA and Bettendorf, IA. Call before your visit to confirm the address.
- What is Grant Peterson's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Grant Peterson accept Medicare assignment?
- Yes. Medicare's clinician data says Grant Peterson 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 Grant Peterson?
- (515) 967-0133, as listed in official Medicare / NPI Registry data.
- What is Grant Peterson's NPI number?
- 1881905370. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Grant Peterson works
Medicare's Facility Affiliation Data lists Grant Peterson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UnityPoint Health - Des Moines Iowa Methodist Medi…Des Moines, IA · Acute Care Hospital · CCN 160082
Practice locations
Addresses where Grant Peterson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 Pleasant StDes Moines, IA 50309
- 1221 Pleasant StDes Moines, IA 50309
- 2720 8th St SWAltoona, IA 50009 (515) 967‑0133
- 4480 Utica Ridge RdBettendorf, IA 52722
- 4480 Utica Ridge Rd, Suite 160Bettendorf, IA 52722 (563) 742‑5950
Group practices
Medicare enrollment lists Grant Peterson as a member of this group (CMS data updated 2026-10-02).
- Iowa Physicians Clinic Medical Foundation1,246 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Des Moines
Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881905370 |
| 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