NPPES file of Aug 9, 2026

Bay Valley Medical Group

Bay Valley Medical Group holds 6 active organization NPIs in the federal registry, with practice locations in 4 California cities. 3 list general practice 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

Hayward has the most NPIs, 3

  1. Hayward3
  2. Castro Valley1
  3. Danville1
  4. Pleasanton1

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

Most NPIs were issued in 2006 and 2009

Bay Valley Medical Group NPIs by year issued2006: 5, 2007: 0, 2008: 0, 2009: 10246200620072008200951
Bay Valley Medical Group NPIs by year issued2006: 5, 2007: 0, 2008: 0, 2009: 10246200620072008200951
Bay Valley Medical Group NPIs by year issued2006: 5, 2007: 0, 2008: 0, 2009: 10246200620072008200951

Source: CMS NPPES, enumeration dates.

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

Hayward locations

The city with the most Bay Valley Medical Group NPIs. The full list of all 6 follows.

NPILocationPrimary taxonomyIssued
119475936527212 CALAROGA AVE, HaywardGeneral Practice PhysicianJul 11, 2006
140787726927212 CALAROGA AVE, HaywardGeneral Practice PhysicianJul 21, 2006
112426006227212 CALAROGA AVE, HaywardPodiatristMar 24, 2009
All 6 locations, by city
NPILocationPrimary taxonomyIssued
149776087020126 STANTON AVE STE 201, Castro ValleyPediatrics PhysicianJul 31, 2006
1881611507319 DIABLO RD, DanvillePediatrics PhysicianJul 17, 2006
119475936527212 CALAROGA AVE, HaywardGeneral Practice PhysicianJul 11, 2006
140787726927212 CALAROGA AVE, HaywardGeneral Practice PhysicianJul 21, 2006
112426006227212 CALAROGA AVE, HaywardPodiatristMar 24, 2009
16492938794725 FIRST ST, PleasantonGeneral Practice PhysicianJul 26, 2006

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 Bay Valley Medical Group have 6 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Bay Valley 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.