NPPES file of Aug 9, 2026

Delta Radiology Medical Group

Delta Radiology Medical Group holds 8 active organization NPIs in the federal registry, with practice locations in 3 California cities. 4 list diagnostic radiology physician 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

Stockton has the most NPIs, 6

  1. Stockton6
  2. Lodi1
  3. San Francisco1

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

Most NPIs were issued in 2007 and 2008

Delta Radiology Medical Group NPIs by year issued2006: 1, 2007: 4, 2008: 2, 2009: 0, 2010: 101234200620072008200920104211
Delta Radiology Medical Group NPIs by year issued2006: 1, 2007: 4, 2008: 2, 2009: 0, 2010: 101234200620072008200920104211
Delta Radiology Medical Group NPIs by year issued2006: 1, 2007: 4, 2008: 2, 2009: 0, 2010: 101234200620072008200920104211

Source: CMS NPPES, enumeration dates.

4 NPIs were issued in 2007 alone, more than in any other year; none in 1 of the years between.

Stockton locations

The city with the most Delta Radiology Medical Group NPIs. The full list of all 8 follows.

NPILocationPrimary taxonomyIssued
16594967501617 N CALIFORNIA ST SUITE 1A, StocktonSpecialistMar 20, 2007
15685876652320 N CALIFORNIA ST SUITE 3, StocktonSpecialistMar 20, 2007
14574765581800 N CALIFORNIA ST, StocktonSpecialistMar 20, 2007
17303531372320 N CALIFORNIA ST SUITE 3, StocktonDiagnostic Radiology PhysicianApr 16, 2008
10131814111617 N CALIFORNIA ST SUITE 1A, StocktonDiagnostic Radiology PhysicianApr 16, 2008
163949923910200 TRINITY PKWY # 204, StocktonDiagnostic Radiology PhysicianJun 4, 2010
All 8 locations, by city
NPILocationPrimary taxonomyIssued
10432292711121 W VINE ST SUITE 15, LodiDiagnostic Radiology PhysicianAug 5, 2006
1366567463845 JACKSON ST, San FranciscoSpecialistMar 20, 2007
16594967501617 N CALIFORNIA ST SUITE 1A, StocktonSpecialistMar 20, 2007
15685876652320 N CALIFORNIA ST SUITE 3, StocktonSpecialistMar 20, 2007
14574765581800 N CALIFORNIA ST, StocktonSpecialistMar 20, 2007
17303531372320 N CALIFORNIA ST SUITE 3, StocktonDiagnostic Radiology PhysicianApr 16, 2008
10131814111617 N CALIFORNIA ST SUITE 1A, StocktonDiagnostic Radiology PhysicianApr 16, 2008
163949923910200 TRINITY PKWY # 204, StocktonDiagnostic Radiology PhysicianJun 4, 2010

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 Delta Radiology Medical Group have 8 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Delta Radiology Medical Group'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.