Quick answers
- Does Arthur J. Gonsalves accept Medicare assignment?
- Yes. Medicare's clinician data says Arthur J. Gonsalves 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 Arthur J. Gonsalves see?
- In 2024, CMS data shows 1,027 Original Medicare patients and 3,383 services for Arthur J. Gonsalves. This counts Original Medicare only and measures volume, not quality.
- What is Arthur J. Gonsalves's NPI number?
- 1235216870. 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 Arthur J. Gonsalves, 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 | 1,027 |
|---|---|
| Services billed to Medicare | 3,383 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)893 services
- Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts (93978)594 services
- Ultrasound of both sides of head and neck blood flow (93880)506 services
- Ultrasound of leg arteries or artery grafts (93925)357 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)283 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%
- Arthritis48%
- Ischemic heart disease43%
- Diabetes38%
- Chronic kidney disease35%
Hospitals where Arthur J. Gonsalves works
Medicare's Facility Affiliation Data lists Arthur J. Gonsalves 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.
- Merrimack Health Lawrence HospitalLawrence, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220010
Practice locations
Addresses where Arthur J. Gonsalves is enrolled with Medicare (CMS data updated October 2, 2026).
- 380 Merrimack St, Suite 1cMethuen, MA 01844 (978) 837‑3317
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235216870 |
| 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