Quick answers
- Does Ronald N. Rosen accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald N. Rosen 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 Ronald N. Rosen see?
- In 2024, CMS data shows 428 Original Medicare patients and 580 services for Ronald N. Rosen. This counts Original Medicare only and measures volume, not quality.
- What is Ronald N. Rosen's NPI number?
- 1972554012. 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 Ronald N. Rosen, 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 | 428 |
|---|---|
| Services billed to Medicare | 580 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 84 |
Most frequent services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)444 services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)49 services
- Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)30 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%
- Arthritis75%
- Chronic kidney disease60%
- Anxiety54%
- Ischemic heart disease53%
Hospitals where Ronald N. Rosen works
Medicare's Facility Affiliation Data lists Ronald N. Rosen 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.
- North Shore Medical Center -Salem, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220035
Practice locations
Addresses where Ronald N. Rosen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Atlantic TerLynn, MA 01902 (781) 593‑8099
- 1 Hutchinson DrDanvers, MA 01923 (978) 739‑6950
Group practices
Medicare enrollment lists Ronald N. Rosen as a member of this group (CMS data updated October 2, 2026).
- Mass General Brigham Medical Group Northern Massachusetts Inc827 clinicians in the group
Specialties
- Geriatric Medicineprimary
- Family Practicealso
- Hospice/Palliative Carealso
Other geriatricians in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Other clinicians in Mass General Brigham Medical Group Northern Massachusetts Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1973 (53 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972554012 |
| 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