Quick answers
- Does Melissa A. Merritt accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa A. Merritt 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.
- How many Medicare patients does Melissa A. Merritt see?
- In 2024, CMS data shows 14 Original Medicare patients and 24 services for Melissa A. Merritt. This counts Original Medicare only and measures volume, not quality.
- What is Melissa A. Merritt's NPI number?
- 1447659685. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Melissa A. Merritt, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 14 |
|---|---|
| Services billed to Medicare | 24 |
| Different services or procedures | 3 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)19 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
Hospitals where Melissa A. Merritt works
Medicare's Facility Affiliation Data lists Melissa A. Merritt 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.
- Avera Holy Family HospitalEstherville, IA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 161351
- Cass County Memorial HospitalAtlantic, IA · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 161376
- Clarke County HospitalOsceola, IA · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 161348
- Knoxville Hospital & ClinicsKnoxville, IA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 161355
- Macon County Samaritan Memorial HospitalMacon, MO · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 261313
Practice locations
Addresses where Melissa A. Merritt is enrolled with Medicare (CMS data updated October 2, 2026).
- 1501 E 10th StAtlantic, IA 50022 (712) 243‑3250
- 800 S Fillmore StOsceola, IA 50213
- 800 S Fillmore St, Clarke County HospitalOsceola, IA 50213 (641) 342‑2184
Group practices
Medicare enrollment lists Melissa A. Merritt as a member of these groups (CMS data updated October 2, 2026).
- Cass County Memorial Hospital68 clinicians in the group
- Clarke County Public Hospital43 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Atlantic
Clinicians with the same Medicare primary specialty in Atlantic, IA — not a recommendation.
Other clinicians in Cass County Memorial Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447659685 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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