Sivalingam Medical Corporation
Sivalingam Medical Corporation holds 11 active organization NPIs in the federal registry, with practice locations in 7 California cities. 10 list internal medicine physician as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPILancaster has the most NPIs, 5
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2013 and 2023
Source: CMS NPPES, enumeration dates.
7 NPIs were issued in 2023 alone, more than in any other year; none in 14 of the years between.
Lancaster locations
The city with the most Sivalingam Medical Corporation NPIs. The full list of all 11 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1164437042 | 44725 10TH ST W STE 170, Lancaster | Internal Medicine Physician | Jul 29, 2006 |
| 1780959585 | 44725 10TH ST W SUITE 210, Lancaster | Internal Medicine Physician | Mar 13, 2012 |
| 1801221528 | 44725 10TH ST W SUITE 280, Lancaster | Endocrinology, Diabetes & Metabolism Physician | Sep 12, 2013 |
| 1235567124 | 44725 10TH ST W SUITE 170, Lancaster | Internal Medicine Physician | Oct 31, 2013 |
| 1790480150 | 44725 10TH ST W STE 250, Lancaster | Internal Medicine Physician | Apr 4, 2023 |
All 11 locations, by city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1093419368 | 21007 NEMOPHILIA ST STE B, California City | Internal Medicine Physician | Mar 29, 2023 |
| 1164437042 | 44725 10TH ST W STE 170, Lancaster | Internal Medicine Physician | Jul 29, 2006 |
| 1780959585 | 44725 10TH ST W SUITE 210, Lancaster | Internal Medicine Physician | Mar 13, 2012 |
| 1801221528 | 44725 10TH ST W SUITE 280, Lancaster | Endocrinology, Diabetes & Metabolism Physician | Sep 12, 2013 |
| 1235567124 | 44725 10TH ST W SUITE 170, Lancaster | Internal Medicine Physician | Oct 31, 2013 |
| 1790480150 | 44725 10TH ST W STE 250, Lancaster | Internal Medicine Physician | Apr 4, 2023 |
| 1679277941 | 1220 E AVENUE S STE M, Palmdale | Internal Medicine Physician | Mar 29, 2023 |
| 1689378945 | 42357 50TH ST W STE 107, Quartz Hill | Internal Medicine Physician | Mar 29, 2023 |
| 1174227433 | 1535 N CHINA LAKE BLVD STE A, Ridgecrest | Internal Medicine Physician | Mar 29, 2023 |
| 1700580073 | 1415 W ROSAMOND BLVD STE 24, Rosamond | Internal Medicine Physician | Mar 29, 2023 |
| 1467156828 | 20111 W VALLEY BLVD, Tehachapi | Internal Medicine Physician | Mar 29, 2023 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Sivalingam Medical Corporation have 11 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Sivalingam Medical Corporation's NPIs list practice locations in 7 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.