Quick answers
- Does Luis A. Carreiro accept Medicare assignment?
- Yes. Medicare's clinician data says Luis A. Carreiro 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 Luis A. Carreiro see?
- In 2024, CMS data shows 417 Original Medicare patients and 1,481 services for Luis A. Carreiro. This counts Original Medicare only and measures volume, not quality.
- What is Luis A. Carreiro's NPI number?
- 1356372395. 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 Luis A. Carreiro, 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 | 417 |
|---|---|
| Services billed to Medicare | 1,481 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)716 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)205 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)157 services
- Administration of influenza virus vaccine (G0008)102 services
- Influenza vaccine split virus, preservative free (90662)88 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 cholesterol74%
- High blood pressure70%
- Arthritis41%
- Diabetes28%
- Depression27%
- Chronic kidney disease25%
Hospitals where Luis A. Carreiro works
Medicare's Facility Affiliation Data lists Luis A. Carreiro 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.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
- Milford Regional Medical CenterMilford, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220090
Practice locations
Addresses where Luis A. Carreiro is enrolled with Medicare (CMS data updated October 2, 2026).
- 1280 W Central St, Suite 101Franklin, MA 02038 (774) 462‑3900
- 1280 W Central St, Suite 301Franklin, MA 02038 (508) 528‑2700
Group practices
Medicare enrollment lists Luis A. Carreiro as a member of these groups (CMS data updated October 2, 2026).
- UMass Memorial Medical Group Inc2,516 clinicians in the group
- Milford Regional Physician Group, Inc.210 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Franklin
Clinicians with the same Medicare primary specialty in Franklin, MA — not a recommendation.
Other clinicians in UMass Memorial Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Massachusetts Medical School |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1356372395 |
| 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