Quick answers
- Does Mary R. Dias-Regus accept Medicare assignment?
- Medicare's clinician data says Mary R. Dias-Regus may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Mary R. Dias-Regus see?
- In 2024, CMS data shows 285 Original Medicare patients and 2,497 services for Mary R. Dias-Regus. This counts Original Medicare only and measures volume, not quality.
- What is Mary R. Dias-Regus's NPI number?
- 1326015496. 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 Mary R. Dias-Regus, 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 | 285 |
|---|---|
| Services billed to Medicare | 2,497 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)682 services
- Insertion of needle into vein for collection of blood sample (36415)218 services
- Blood test, comprehensive group of blood chemicals (80053)194 services
- Blood test, lipids (cholesterol and triglycerides) (80061)194 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)176 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%
- Arthritis52%
- Anxiety46%
- Diabetes35%
- Chronic kidney disease27%
Hospitals where Mary R. Dias-Regus works
Medicare's Facility Affiliation Data lists Mary R. Dias-Regus 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.
- Saint Anne's HospitalFall River, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220020
- Southcoast Hospitals GroupFall River, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220074
Practice locations
Addresses where Mary R. Dias-Regus is enrolled with Medicare (CMS data updated October 2, 2026).
- 531 Faunce Corner RdDartmouth, MA 02747 (508) 996‑3991
Group practices
Medicare enrollment lists Mary R. Dias-Regus as a member of this group (CMS data updated October 2, 2026).
- Lifespan Physician Group of Massachusetts Inc476 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Dartmouth
Clinicians with the same Medicare primary specialty in Dartmouth, MA — not a recommendation.
Other clinicians in Lifespan Physician Group of Massachusetts Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| School | University Of Massachusetts Medical School |
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1326015496 |
| 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