Massachusetts General Physicians Organization
Massachusetts General Physicians Organization holds 9 active organization NPIs in the federal registry, with practice locations in 3 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 NPIBoston has the most NPIs, 6
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2006 and 2007
Source: CMS NPPES, enumeration dates.
2 NPIs were issued in 2006 alone, more than in any other year; none in 9 of the years between.
Boston locations
The city with the most Massachusetts General Physicians Organization NPIs. The full list of all 9 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1801874573 | 55 FRUIT ST BUL 2, Boston | Dermatology Physician | Jan 4, 2006 |
| 1245306976 | 55 FRUIT ST YAW 10A, Boston | Reproductive Endocrinology Physician | Nov 27, 2006 |
| 1265583199 | 165 CAMBRIDGE ST SUITE 401, Boston | Dentist | Jan 16, 2007 |
| 1982848222 | 151 MERRIMAC ST 5TH FLOOR, Boston | Clinic/Center | Apr 30, 2009 |
| 1306186523 | 175 CAMBRIDGE ST SUITE 400, Boston | Durable Medical Equipment & Medical Supplies | Feb 25, 2013 |
| 1073979423 | 55 FRUIT ST FOUNDERS 880, Boston | General Acute Care Hospital | Jan 14, 2016 |
All 9 locations, by city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1801874573 | 55 FRUIT ST BUL 2, Boston | Dermatology Physician | Jan 4, 2006 |
| 1245306976 | 55 FRUIT ST YAW 10A, Boston | Reproductive Endocrinology Physician | Nov 27, 2006 |
| 1265583199 | 165 CAMBRIDGE ST SUITE 401, Boston | Dentist | Jan 16, 2007 |
| 1982848222 | 151 MERRIMAC ST 5TH FLOOR, Boston | Clinic/Center | Apr 30, 2009 |
| 1306186523 | 175 CAMBRIDGE ST SUITE 400, Boston | Durable Medical Equipment & Medical Supplies | Feb 25, 2013 |
| 1073979423 | 55 FRUIT ST FOUNDERS 880, Boston | General Acute Care Hospital | Jan 14, 2016 |
| 1396062246 | 104 ENDICOTT ST SUITE 101, Danvers | Dentist | Apr 30, 2010 |
| 1942691803 | 52 SECOND AVE STE 1150, Waltham | Durable Medical Equipment & Medical Supplies | Feb 13, 2015 |
| 1326766205 | 52 SECOND AVE STE 3300, Waltham | Durable Medical Equipment & Medical Supplies | Aug 17, 2022 |
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 Massachusetts General Physicians Organization have 9 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Massachusetts General Physicians Organization's NPIs list practice locations in 3 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.