NPPES file of Aug 9, 2026

Gonzalo A Diaz

Gonzalo A Diaz holds 9 active organization NPIs in the federal registry, with practice locations in 5 cities in 2 states. 7 list sleep medicine (internal medicine) 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

El Paso, TX has the most NPIs, 5

  1. El Paso, TX5
  2. Las Cruces, NM1
  3. Los Alamos, NM1
  4. Los Lunas, NM1
  5. Rio Rancho, NM1

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

Most NPIs were issued in 2019 and 2020

Gonzalo A Diaz NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 4, 2020: 2, 2021: 20123420072009201120132015201720192021412
Gonzalo A Diaz NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 4, 2020: 2, 2021: 2012342007200820092010201120122013201420152016201720182019202020214212
Gonzalo A Diaz NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 4, 2020: 2, 2021: 20123420072009201120132015201720192021412

Source: CMS NPPES, enumeration dates.

4 NPIs were issued in 2019 alone, more than in any other year; none in 11 of the years between.

El Paso, TX locations

The city with the most Gonzalo A Diaz NPIs. The full list of all 9 follows.

NPILocationPrimary taxonomyIssued
13262612494305 N MESA ST STE B, El Paso, TXSleep Medicine (Internal Medicine) PhysicianApr 10, 2007
16599017594305 N MESA ST STE B, El Paso, TXDurable Medical Equipment & Medical SuppliesJan 17, 2020
16195077203030 JOE BATTLE BLVD, El Paso, TXDurable Medical Equipment & Medical SuppliesJan 17, 2020
15185556487430 N MESA ST, El Paso, TXSleep Medicine (Internal Medicine) PhysicianJan 5, 2021
10337071792000 LOMALAND DR, El Paso, TXSleep Medicine (Internal Medicine) PhysicianJan 5, 2021
All 9 locations, by state and city
NPILocationPrimary taxonomyIssued
11246841621155 COMMERCE DR STE G, Las Cruces, NMSleep Medicine (Internal Medicine) PhysicianMay 15, 2019
13660892373917 WEST RD, Los Alamos, NMSleep Medicine (Internal Medicine) PhysicianDec 10, 2019
18711307321204 MAIN ST NE STE A, Los Lunas, NMSleep Medicine (Internal Medicine) PhysicianDec 10, 2019
14872913571009 GOLF COURSE RD SE, Rio Rancho, NMSleep Medicine (Internal Medicine) PhysicianDec 10, 2019
13262612494305 N MESA ST STE B, El Paso, TXSleep Medicine (Internal Medicine) PhysicianApr 10, 2007
16599017594305 N MESA ST STE B, El Paso, TXDurable Medical Equipment & Medical SuppliesJan 17, 2020
16195077203030 JOE BATTLE BLVD, El Paso, TXDurable Medical Equipment & Medical SuppliesJan 17, 2020
15185556487430 N MESA ST, El Paso, TXSleep Medicine (Internal Medicine) PhysicianJan 5, 2021
10337071792000 LOMALAND DR, El Paso, TXSleep Medicine (Internal Medicine) PhysicianJan 5, 2021

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 Gonzalo A Diaz have 9 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Gonzalo A Diaz's NPIs list practice locations in 5 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.