Quick answers
- Which hospitals does Dennis A. Whitmer work at?
- Medicare's official clinician data lists Dennis A. Whitmer at 2 hospitals: MercyOne Des Moines Medical Center and Story County Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dennis A. Whitmer see patients?
- Medicare's clinician data lists 5 practice locations, including Des Moines, IA, West Des Moines, IA and Ankeny, IA. Call before your visit to confirm the address.
- What is Dennis A. Whitmer's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Dennis A. Whitmer accept Medicare assignment?
- Yes. Medicare's clinician data says Dennis A. Whitmer 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 Dennis A. Whitmer's NPI number?
- 1124134846. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dennis A. Whitmer works
Medicare's Facility Affiliation Data lists Dennis A. Whitmer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · CCN 160083
- Story County HospitalNevada, IA · Critical Access Hospital · CCN 161333
Practice locations
Addresses where Dennis A. Whitmer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1111 6th AveDes Moines, IA 50314
- 1755 59th PlWest Des Moines, IA 50266
- 330 Laurel St, Suite 1200Des Moines, IA 50314
- 411 Laurel StDes Moines, IA 50314
- 800 E 1st StAnkeny, IA 50021
Group practices
Medicare enrollment lists Dennis A. Whitmer as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinics Inc443 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Des Moines
Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Des Moines University Of Osteopathic Medicine And Health Sciences |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124134846 |
| 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