Quick answers
- Does Guilherme B. Marin accept Medicare assignment?
- Yes. Medicare's clinician data says Guilherme B. Marin 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 Guilherme B. Marin see?
- In 2024, CMS data shows 1,515 Original Medicare patients and 2,192 services for Guilherme B. Marin. This counts Original Medicare only and measures volume, not quality.
- What is Guilherme B. Marin's NPI number?
- 1801129796. 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 Guilherme B. Marin, 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 | 1,515 |
|---|---|
| Services billed to Medicare | 2,192 |
| Different services or procedures | 54 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,343 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)304 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)93 services
- Ultrasound of heart, follow-up (93308)44 services
- Ultrasound of heart blood flow, valves and chambers, follow-up (93321)43 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 cholesterol71%
- Arthritis50%
- Ischemic heart disease38%
- Diabetes37%
- Chronic kidney disease33%
Hospitals where Guilherme B. Marin works
Medicare's Facility Affiliation Data lists Guilherme B. Marin 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.
- Plains Regional Medical CenterClovis, NM · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 320022
- Presbyterian Espanola HospitalEspanola, NM · Acute Care Hospital · Emergency services: listed by Medicare · CCN 320011
- Presbyterian HospitalAlbuquerque, NM · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 320021
- Presbyterian Santa Fe Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 320090
- Socorro General HospitalSocorro, NM · Critical Access Hospital · Emergency services: listed by Medicare · CCN 321301
Practice locations
Addresses where Guilherme B. Marin is enrolled with Medicare (CMS data updated October 2, 2026).
- 121 El Paso RdRuidoso, NM 88345 (575) 630‑8350
Group practices
Medicare enrollment lists Guilherme B. Marin as a member of this group (CMS data updated October 2, 2026).
- Presbyterian Healthcare Services1,395 clinicians in the group
Specialties
Find other Interventional Cardiology doctors in New Mexico →
Other interventional cardiologists in New Mexico
Clinicians with the same Medicare primary specialty in New Mexico — not a recommendation.
Other clinicians in Presbyterian Healthcare Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801129796 |
| 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