Quick answers
- Where does Catherine M. Greving see patients?
- Medicare's clinician data lists 2 practice locations, including Decorah, IA. Call before your visit to confirm the address.
- What is Catherine M. Greving's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does Catherine M. Greving accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine M. Greving 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 Catherine M. Greving?
- (563) 387-1045, as listed in official Medicare / NPI Registry data.
- What is Catherine M. Greving's NPI number?
- 1396918892. 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 Catherine M. Greving is enrolled with Medicare (CMS data updated 2026-10-02).
- 700 College DrDecorah, IA 52101 (563) 387‑1045
- 901 Montgomery StDecorah, IA 52101 (563) 382‑2911
Group practices
Medicare enrollment lists Catherine M. Greving as a member of this group (CMS data updated 2026-10-02).
- Winneshiek Medical Center101 clinicians in the group
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Decorah
Clinicians with the same Medicare primary specialty in Decorah, IA — not a recommendation.
Clinician information
| Graduation year | 1998 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396918892 |
| 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