NPPES file of Aug 9, 2026

Marin General Hospital

Marin General Hospital holds 5 active organization NPIs in the federal registry, with practice locations in 2 California cities. 3 list general acute care hospital as their primary taxonomy; each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

Greenbrae has the most NPIs, 4

  1. Greenbrae4
  2. San Rafael1

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2006 and 2007

Marin General Hospital NPIs by year issued2006: 2, 2007: 2, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 100.511.5220072009201120132015201720192006: 221
Marin General Hospital NPIs by year issued2006: 2, 2007: 2, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 100.511.5220062007200820092010201120122013201420152016201720182019221
Marin General Hospital NPIs by year issued2006: 2, 2007: 2, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 100.511.5220072009201120132015201720192006: 21

Source: CMS NPPES, enumeration dates.

2 NPIs were issued in 2006 alone, more than in any other year; none in 11 of the years between.

Greenbrae locations

The city with the most Marin General Hospital NPIs. The full list of all 5 follows.

NPILocationPrimary taxonomyIssued
1396725677250 BON AIR RD, GreenbraeGeneral Acute Care HospitalJan 20, 2006
1942267869250 BON AIR RD, GreenbraePsychiatric Hospital UnitApr 26, 2006
1124144902250 BON AIR RD HOSPITALIST OFFICE, GreenbraeGeneral Acute Care HospitalMar 22, 2007
18519340201100 S ELISEO DR STE 2, GreenbraeClinic/CenterOct 21, 2019
All 5 locations, by city
NPILocationPrimary taxonomyIssued
1396725677250 BON AIR RD, GreenbraeGeneral Acute Care HospitalJan 20, 2006
1942267869250 BON AIR RD, GreenbraePsychiatric Hospital UnitApr 26, 2006
1124144902250 BON AIR RD HOSPITALIST OFFICE, GreenbraeGeneral Acute Care HospitalMar 22, 2007
18519340201100 S ELISEO DR STE 2, GreenbraeClinic/CenterOct 21, 2019
16493054594000 CIVIC CENTER DR 160, San RafaelGeneral Acute Care HospitalFeb 22, 2007

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Marin General Hospital 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. Marin General Hospital'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.