Registry data as of Aug 27, 2026

Castle Medical

Castle Medical holds 7 active organization NPIs in the federal registry, with practice locations in 6 cities in 5 states. 6 list clinical medical laboratory 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

Smyrna, GA has the most NPIs, 2

  1. Smyrna, GA2
  2. Birmingham, AL1
  3. San Rafael, CA1
  4. Cuthbert, GA1
  5. Oklahoma City, OK1
  6. Houston, TX1

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

Most NPIs were issued in 2006 and 2014

Castle Medical NPIs by year issued2006: 1, 2007: 0, 2008: 0, 2009: 0, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 50246200620072008200920102011201220132014151
Castle Medical NPIs by year issued2006: 1, 2007: 0, 2008: 0, 2009: 0, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 50246200620072008200920102011201220132014151
Castle Medical NPIs by year issued2006: 1, 2007: 0, 2008: 0, 2009: 0, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 50246200620072008200920102011201220132014151

Source: CMS NPPES, enumeration dates.

5 NPIs were issued in 2014 alone, more than in any other year; none in 6 of the years between.

Smyrna, GA locations

The city with the most Castle Medical NPIs. The full list of all 7 follows.

NPILocationPrimary taxonomyIssued
12354312895700 HIGHLANDS PKWY SE SUITE 100, Smyrna, GAClinical Medical LaboratoryNov 24, 2010
16799702485700 HIGHLANDS PKWY SE SUITE 100, Smyrna, GAClinical Medical LaboratoryNov 26, 2014
All 7 locations, by state and city
NPILocationPrimary taxonomyIssued
16698792921401 B PROVIDENCE PARK SUITE 1406-1407, Birmingham, ALClinical Medical LaboratoryNov 25, 2014
1588061154523 4TH ST SUITE 110, San Rafael, CAClinical Medical LaboratoryNov 26, 2014
1083678742690 COLLEGE ST, Cuthbert, GAOxygen Equipment & Supplies (DME)Apr 12, 2006
12354312895700 HIGHLANDS PKWY SE SUITE 100, Smyrna, GAClinical Medical LaboratoryNov 24, 2010
16799702485700 HIGHLANDS PKWY SE SUITE 100, Smyrna, GAClinical Medical LaboratoryNov 26, 2014
18911919533705 W MEMORIAL RD SUITE 1406-1407, Oklahoma City, OKClinical Medical LaboratoryNov 17, 2014
14072594687515 MAIN ST SUITE 340, Houston, TXClinical Medical LaboratoryOct 6, 2014

Related names

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 Castle Medical 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. Castle Medical's NPIs list practice locations in 6 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.