Quick answers
- Does Cassey L. Nelson accept Medicare assignment?
- Yes. Medicare's clinician data says Cassey L. Nelson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Cassey L. Nelson's NPI number?
- 1740741834. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cassey L. Nelson works
Medicare's Facility Affiliation Data lists Cassey L. Nelson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- MercyOne Waterloo Medical CenterWaterloo, IA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 160067
Practice locations
Addresses where Cassey L. Nelson is enrolled with Medicare (CMS data updated October 2, 2026).
- 2750 Saint Francis DrWaterloo, IA 50702 (319) 272‑8922
- 3421 W 9th St, Mercyone Waterloo Medical CenterWaterloo, IA 50702 (319) 272‑7600
Group practices
Medicare enrollment lists Cassey L. Nelson as a member of this group (CMS data updated October 2, 2026).
- Covenant Medical Center Inc235 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Waterloo
Clinicians with the same Medicare primary specialty in Waterloo, IA — not a recommendation.
Other clinicians in Covenant Medical Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Des Moines University Of Osteopathic Medicine And Health Sciences |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740741834 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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