Charles River Medical Associates
Charles River Medical Associates holds 5 active organization NPIs in the federal registry, with practice locations in 2 Massachusetts cities. Each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIFramingham has the most NPIs, 4
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2006 and 2008
Source: CMS NPPES, enumeration dates.
2 NPIs were issued in 2008 alone, more than in any other year; none in 9 of the years between.
Framingham locations
The city with the most Charles River Medical Associates NPIs. The full list of all 5 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1801857537 | 39 GRANT ST STE 100, Framingham | Clinical Medical Laboratory | Mar 31, 2006 |
| 1922274950 | 336 UNION AVE BASEMENT LEVEL, Framingham | Durable Medical Equipment & Medical Supplies | Apr 30, 2008 |
| 1104073253 | 571 UNION AVE STE 102, Framingham | Radiology Clinic/Center | Aug 20, 2008 |
| 1598215204 | 600 WORCESTER RD SUITE 303, Framingham | Internal Medicine Physician | Oct 5, 2016 |
All 5 locations, by city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1801857537 | 39 GRANT ST STE 100, Framingham | Clinical Medical Laboratory | Mar 31, 2006 |
| 1922274950 | 336 UNION AVE BASEMENT LEVEL, Framingham | Durable Medical Equipment & Medical Supplies | Apr 30, 2008 |
| 1104073253 | 571 UNION AVE STE 102, Framingham | Radiology Clinic/Center | Aug 20, 2008 |
| 1598215204 | 600 WORCESTER RD SUITE 303, Framingham | Internal Medicine Physician | Oct 5, 2016 |
| 1710495585 | 162 MAIN ST, Northborough | Sports Medicine (Internal Medicine) Physician | Jan 16, 2018 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Charles River Medical Associates have 5 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Charles River Medical Associates's NPIs list practice locations in 2 cities.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.