NPPES file of Aug 9, 2026

Internal Medicine Medical Group

Internal Medicine Medical Group holds 7 active organization NPIs in the federal registry, with practice locations in 4 California cities. 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

Pomona has the most NPIs, 4

  1. Pomona4
  2. Chino Hills1
  3. Fontana1
  4. Rancho Cucamonga1

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

Most NPIs were issued in 2006 and 2007

Internal Medicine Medical Group NPIs by year issued2006: 1, 2007: 602462006200716
Internal Medicine Medical Group NPIs by year issued2006: 1, 2007: 602462006200716
Internal Medicine Medical Group NPIs by year issued2006: 1, 2007: 602462006200716

Source: CMS NPPES, enumeration dates.

6 NPIs were issued in 2007 alone, more than in any other year.

Pomona locations

The city with the most Internal Medicine Medical Group NPIs. The full list of all 7 follows.

NPILocationPrimary taxonomyIssued
13867244331866 N ORANGE GROVE AVE SUITE 202, PomonaFamily Medicine PhysicianOct 16, 2006
11141204171904 N ORANGE GROVE AVENUE INTERNAL MEDICINE MEDICAL GROUP, PomonaEndocrinology, Diabetes & Metabolism PhysicianJun 6, 2007
13161406191866 N ORANGE GROVE AVE SUITE 102, PomonaInternal Medicine PhysicianJun 6, 2007
1225231525790 E BONITA AVENUE INTERNAL MEDICINE MEDICAL GROUP 2ND FLOOR, PomonaFamily Medicine PhysicianJun 6, 2007
All 7 locations, by city
NPILocationPrimary taxonomyIssued
16797760902140 GRAND AVENUE INTERNAL MEDICINE MEDICAL GROUP SUITE 120, Chino HillsInternal Medicine PhysicianJun 6, 2007
116462558816465 SIERRA LAKES PARKWAY INTERNAL MEDICINE MEDICAL GROUP SUITE, FontanaEndocrinology, Diabetes & Metabolism PhysicianJun 6, 2007
13867244331866 N ORANGE GROVE AVE SUITE 202, PomonaFamily Medicine PhysicianOct 16, 2006
11141204171904 N ORANGE GROVE AVENUE INTERNAL MEDICINE MEDICAL GROUP, PomonaEndocrinology, Diabetes & Metabolism PhysicianJun 6, 2007
13161406191866 N ORANGE GROVE AVE SUITE 102, PomonaInternal Medicine PhysicianJun 6, 2007
1225231525790 E BONITA AVENUE INTERNAL MEDICINE MEDICAL GROUP 2ND FLOOR, PomonaFamily Medicine PhysicianJun 6, 2007
114442346810837 LAUREL AVENUE INTERNAL MEDICINE MEDICAL GROUP SUITE 104, Rancho CucamongaFamily Medicine PhysicianJun 6, 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 Internal Medicine Medical Group have 7 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Internal Medicine Medical Group's NPIs list practice locations in 4 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.