Quick answers
- Does Sarah R. Begley accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah R. Begley 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 Sarah R. Begley see?
- In 2024, CMS data shows 195 Original Medicare patients and 1,136 services for Sarah R. Begley. This counts Original Medicare only and measures volume, not quality.
- What is Sarah R. Begley's NPI number?
- 1891471967. 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 Sarah R. Begley, 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 | 195 |
|---|---|
| Services billed to Medicare | 1,136 |
| Different services or procedures | 97 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)150 services
- Insertion of needle into vein for collection of blood sample (36415)144 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)102 services
- Blood test, basic group of blood chemicals (calcium, total) (80048)48 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test (85027)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 pressure64%
- High cholesterol58%
- Arthritis29%
- Diabetes27%
- Chronic kidney disease26%
- Ischemic heart disease22%
Practice locations
Addresses where Sarah R. Begley is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Lyons StDedham, MA 02026 (781) 329‑1400
- 100 2nd AveNeedham, MA 02494 (781) 726‑4800
- 133 Brookline AveBoston, MA 02215 (617) 421‑1000
- 291 Independence DrChestnut Hill, MA 02467 (617) 325‑2800
- 36 Shops at 5 WayPlymouth, MA 02360 (774) 608‑3700
Group practices
Medicare enrollment lists Sarah R. Begley as a member of this group (CMS data updated October 2, 2026).
- Atrius Health Inc1,222 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Dedham
Clinicians with the same Medicare primary specialty in Dedham, MA — not a recommendation.
Other clinicians in Atrius Health Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1891471967 |
| 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
- 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