Quick answers
- Where does Mark W. Walter see patients?
- Medicare's clinician data lists 1 practice location in Dubuque, IA. Call before your visit to confirm the address.
- What is Mark W. Walter's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Mark W. Walter accept Medicare assignment?
- Medicare's clinician data says Mark W. Walter may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Mark W. Walter?
- (563) 690-2850, as listed in official Medicare / NPI Registry data.
- What is Mark W. Walter's NPI number?
- 1205910643. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mark W. Walter is enrolled with Medicare (CMS data updated 2026-10-02).
- 1690 Elm StDubuque, IA 52001 (563) 690‑2850
Group practices
Medicare enrollment lists Mark W. Walter as a member of this group (CMS data updated 2026-10-02).
- Crescent Community Health Center17 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Dubuque
Clinicians with the same Medicare primary specialty in Dubuque, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wake Forest University School Of Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1205910643 |
| 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
- 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