Quick answers
- Does Justin M. Besen accept Medicare assignment?
- Yes. Medicare's clinician data says Justin M. Besen 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 Justin M. Besen see?
- In 2024, CMS data shows 734 Original Medicare patients and 2,976 services for Justin M. Besen. This counts Original Medicare only and measures volume, not quality.
- What is Justin M. Besen's NPI number?
- 1821475542. 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 Justin M. Besen, 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 | 734 |
|---|---|
| Services billed to Medicare | 2,976 |
| Different services or procedures | 53 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)904 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)443 services
- Destruction of precancer skin growth, 1 growth (17000)299 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)255 services
- Biopsy of related skin growth, first growth (11102)162 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 cholesterol75%
- High blood pressure71%
- Arthritis49%
- Anxiety31%
- Ischemic heart disease23%
- Diabetes22%
Hospitals where Justin M. Besen works
Medicare's Facility Affiliation Data lists Justin M. Besen 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.
- 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 Justin M. Besen is enrolled with Medicare (CMS data updated October 2, 2026).
- 368 Faunce Corner Rd, Associates PCDartmouth, MA 02747 (508) 998‑1994
Group practices
Medicare enrollment lists Justin M. Besen as a member of this group (CMS data updated October 2, 2026).
- Dartmouth Dermatology Associates, PC9 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Dartmouth
Clinicians with the same Medicare primary specialty in Dartmouth, MA — not a recommendation.
Other clinicians in Dartmouth Dermatology Associates, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821475542 |
| 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