Quick answers
- Does Marielle L. Opena accept Medicare assignment?
- Yes. Medicare's clinician data says Marielle L. Opena 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 Marielle L. Opena see?
- In 2024, CMS data shows 137 Original Medicare patients and 295 services for Marielle L. Opena. This counts Original Medicare only and measures volume, not quality.
- What is Marielle L. Opena's NPI number?
- 1588287874. 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 Marielle L. Opena, 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 | 137 |
|---|---|
| Services billed to Medicare | 295 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)70 services
- Hospital discharge day management, more than 30 minutes (99239)68 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)39 services
- Testing for presence of drug, read by direct observation (80305)21 services
- Hemoglobin a1c level (83036)20 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%
- Arthritis62%
- Diabetes48%
- Anxiety35%
- Ischemic heart disease34%
Hospitals where Marielle L. Opena works
Medicare's Facility Affiliation Data lists Marielle L. Opena 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.
- Covenant Medical CenterLubbock, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450040
- Plains Regional Medical CenterClovis, NM · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 320022
- Roosevelt General HospitalPortales, NM · Acute Care Hospital · Emergency services: listed by Medicare · CCN 320084
Practice locations
Addresses where Marielle L. Opena is enrolled with Medicare (CMS data updated October 2, 2026).
- 2000 W 21st St, Suite R1Clovis, NM 88101 (575) 935‑0944
Group practices
Medicare enrollment lists Marielle L. Opena as a member of this group (CMS data updated October 2, 2026).
- Roosevelt County Special Hospital District40 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Clovis
Clinicians with the same Medicare primary specialty in Clovis, NM — not a recommendation.
Other clinicians in Roosevelt County Special Hospital District
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2020 (6 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588287874 |
| 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