Quick answers
- Where does Sean Ostendorf see patients?
- Medicare's clinician data lists 2 practice locations, including Waterloo, IA and Ames, IA. Call before your visit to confirm the address.
- What is Sean Ostendorf's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does Sean Ostendorf accept Medicare assignment?
- Yes. Medicare's clinician data says Sean Ostendorf 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 Sean Ostendorf?
- (800) 531-4236, as listed in official Medicare / NPI Registry data.
- What is Sean Ostendorf's NPI number?
- 1861072845. 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 Sean Ostendorf is enrolled with Medicare (CMS data updated 2026-10-02).
- 227 E San Marnan DrWaterloo, IA 50702 (800) 531‑4236
- 4923 Lincoln WayAmes, IA 50014 (800) 531‑4236
Group practices
Medicare enrollment lists Sean Ostendorf as a member of this group (CMS data updated 2026-10-02).
- Heart and Solutions6 clinicians in the group
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Waterloo
Clinicians with the same Medicare primary specialty in Waterloo, IA — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861072845 |
| 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