Quick answers
- Does Sergio E. Alvarado Montalvo accept Medicare assignment?
- Yes. Medicare's clinician data says Sergio E. Alvarado Montalvo 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 Sergio E. Alvarado Montalvo see?
- In 2024, CMS data shows 1,699 Original Medicare patients and 2,369 services for Sergio E. Alvarado Montalvo. This counts Original Medicare only and measures volume, not quality.
- What is Sergio E. Alvarado Montalvo's NPI number?
- 1184103616. 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 Sergio E. Alvarado Montalvo, 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 | 1,699 |
|---|---|
| Services billed to Medicare | 2,369 |
| Different services or procedures | 85 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- X-ray of chest, 1 view (71045)454 services
- Ct scan of chest without contrast (71250)340 services
- Dxa bone density measurement of hip, pelvis, spine (77080)238 services
- X-ray of abdomen, 1 view (74018)200 services
- X-ray of chest, 2 views (71046)167 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 cholesterol72%
- Arthritis46%
- Diabetes38%
- Ischemic heart disease36%
- Chronic kidney disease32%
Hospitals where Sergio E. Alvarado Montalvo works
Medicare's Facility Affiliation Data lists Sergio E. Alvarado Montalvo 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.
- Ochsner LSU Health MonroeMonroe, LA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 190011
- Ochsner LSU Health ShreveportShreveport, LA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 190098
- Ochsner LSU Health Shreveport - St. Mary Medical CenterShreveport, LA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 190317
- Ochsner Medical Center - Baton RougeBaton Rouge, LA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 190202
- Ochsner Medical Center AcuteNew Orleans, LA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 190036
Practice locations
Addresses where Sergio E. Alvarado Montalvo is enrolled with Medicare (CMS data updated October 2, 2026).
- 1514 Jefferson HwyNew Orleans, LA 70121 (504) 842‑3000
- 1541 Kings HwyShreveport, LA 71103 (318) 675‑5000
- 1606 Kings HwyShreveport, LA 71103 (318) 675‑6402
Group practices
Medicare enrollment lists Sergio E. Alvarado Montalvo as a member of these groups (CMS data updated October 2, 2026).
- Ochsner Clinic LLC2,864 clinicians in the group
- LSU Health Sciences Center Shreveport Faculty Group Practice571 clinicians in the group
Specialties
- Nuclear Medicineprimary
- Diagnostic Radiologyalso
Other nuclear medicine doctors in Louisiana
Clinicians with the same Medicare primary specialty in Louisiana — not a recommendation.
Other clinicians in Ochsner Clinic LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184103616 |
| 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