Quick answers
- Does Maria S. Chafoya accept Medicare assignment?
- Yes. Medicare's clinician data says Maria S. Chafoya 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 Maria S. Chafoya see?
- In 2024, CMS data shows 90 Original Medicare patients and 173 services for Maria S. Chafoya. This counts Original Medicare only and measures volume, not quality.
- What is Maria S. Chafoya's NPI number?
- 1235825951. 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 Maria S. Chafoya, 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 | 90 |
|---|---|
| Services billed to Medicare | 173 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)32 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)29 services
- Automated urinalysis test (81003)16 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)16 services
- Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)12 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 cholesterol72%
- High blood pressure54%
- Arthritis48%
- Anxiety38%
- Depression30%
- Chronic kidney disease20%
Practice locations
Addresses where Maria S. Chafoya is enrolled with Medicare (CMS data updated October 2, 2026).
- 366 Shrewsbury StWorcester, MA 01604 (508) 595‑2700
- 460 Southbridge StAuburn, MA 01501 (508) 595‑2700
- 605 Lincoln StWorcester, MA 01605 (800) 853‑2288
Group practices
Medicare enrollment lists Maria S. Chafoya as a member of these groups (CMS data updated October 2, 2026).
- Reliant Medical Group Inc640 clinicians in the group
- Edward M Kennedy Community Health Center Inc67 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Worcester
Clinicians with the same Medicare primary specialty in Worcester, MA — not a recommendation.
Other clinicians in Reliant Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235825951 |
| 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