NPPES file of Aug 9, 2026

Bass Medical Group

Bass Medical Group holds 23 active organization NPIs in the federal registry, with practice locations in 13 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

Walnut Creek has the most NPIs, 6

  1. Walnut Creek6
  2. Pleasanton3
  3. San Ramon3
  4. San Jose2
  5. Antioch1
  6. Campbell1
  7. Castro Valley1
  8. Corte Madera1

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

Most NPIs were issued in 2016 and 2023

Bass Medical Group NPIs by year issued2006: 1, 2007: 0, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 1, 2015: 3, 2016: 4, 2017: 1, 2018: 1, 2019: 2, 2020: 0, 2021: 1, 2022: 1, 2023: 4, 2024: 3, 2025: 10123420072009201120132015201720192021202320252016: 441131121131
Bass Medical Group NPIs by year issued2006: 1, 2007: 0, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 1, 2015: 3, 2016: 4, 2017: 1, 2018: 1, 2019: 2, 2020: 0, 2021: 1, 2022: 1, 2023: 4, 2024: 3, 2025: 10123420072009201120132015201720192021202320252016: 441131121131
Bass Medical Group NPIs by year issued2006: 1, 2007: 0, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 1, 2015: 3, 2016: 4, 2017: 1, 2018: 1, 2019: 2, 2020: 0, 2021: 1, 2022: 1, 2023: 4, 2024: 3, 2025: 101234200720102013201620192022202542023: 41131121131

Source: CMS NPPES, enumeration dates.

4 NPIs were issued in 2016 alone, more than in any other year; none in 8 of the years between.

Walnut Creek locations

The city with the most Bass Medical Group NPIs. The full list of all 23 follows.

NPILocationPrimary taxonomyIssued
11544019412637 SHADELANDS DR, Walnut CreekSpecialistOct 16, 2006
1043616600390 N WIGET LN STE 100, Walnut CreekOrthopaedic Surgery PhysicianNov 10, 2014
1265971063108 LA CASA VIA SUITE 100, Walnut CreekInternal Medicine PhysicianFeb 14, 2017
18114795042637 SHADELANDS DR, Walnut CreekPodiatristAug 30, 2018
1316520034575 LENNON LN, Walnut CreekMedical Oncology PhysicianApr 30, 2021
11742534052637 SHADELANDS DR, Walnut CreekObstetrics & Gynecology PhysicianJun 10, 2022
All 23 locations, by city
NPILocationPrimary taxonomyIssued
13961245742350 COUNTRY HILLS DR SUITE B, AntiochOrthopaedic Surgery PhysicianMay 21, 2015
1356114334221 E HACIENDA AVE STE C, CampbellSports Medicine (Family Medicine) PhysicianNov 1, 2023
109318164619842 LAKE CHABOT RD, Castro ValleyOrthopaedic Surgery PhysicianAug 18, 2015
10730877552 FIFER AVE STE 130, Corte MaderaPain Medicine PhysicianJan 16, 2019
1790544567763 ALTOS OAKS DR STE 2, Los AltosOrthopaedic Surgery PhysicianMar 15, 2024
12052960842250 MORELLO AVE, Pleasant HillAnesthesiology PhysicianMar 7, 2016
16496462825924 STONERIDGE DR STE 202, PleasantonOrthopaedic Surgery PhysicianAug 18, 2015
10133778942324 SANTA RITA RD STE 6, PleasantonAnesthesiology PhysicianMar 7, 2016
13964346764626 WILLOW RD STE 200, PleasantonOrthopaedic Surgery PhysicianMay 3, 2023
1043051857490 POST ST STE 336, San FranciscoPodiatristJun 5, 2024
14770270502430 SAMARITAN DR, San JoseOrthopaedic Hand Surgery PhysicianJan 16, 2019
16096230812550 SAMARITAN DR STE D, San JosePodiatristMay 2, 2024
10336676541081 MARKET PL STE 200, San RamonInternal Medicine PhysicianSep 12, 2016
10035053975601 NORRIS CANYON RD STE 130, San RamonSpecialistMay 3, 2023
146732990412677 ALCOSTA BLVD STE 180, San RamonOrthopaedic Surgery PhysicianOct 20, 2025
18318881142180 W GRANT LINE RD STE 100, TracySpecialistMay 3, 2023
13264093435127 W NOBLE AVE, VisaliaPain Medicine PhysicianMar 18, 2016
11544019412637 SHADELANDS DR, Walnut CreekSpecialistOct 16, 2006
1043616600390 N WIGET LN STE 100, Walnut CreekOrthopaedic Surgery PhysicianNov 10, 2014
1265971063108 LA CASA VIA SUITE 100, Walnut CreekInternal Medicine PhysicianFeb 14, 2017
18114795042637 SHADELANDS DR, Walnut CreekPodiatristAug 30, 2018
1316520034575 LENNON LN, Walnut CreekMedical Oncology PhysicianApr 30, 2021
11742534052637 SHADELANDS DR, Walnut CreekObstetrics & Gynecology PhysicianJun 10, 2022

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 Bass Medical Group have 23 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Bass Medical Group's NPIs list practice locations in 13 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.